68 results about "Cone penetration test" patented technology

The invention discloses a deep static cone penetration test method for geotechnical engineering. On the basis of the conventional wireless static cone penetration test method, a casing with a protection function is provided for a static cone penetration feeler lever by using the property that a rotary cone penetration vehicle rotatably penetrates a power head, and is rotatably penetrated, the bottom of the casting is provided with a cutting tooth (a rib drill) which contributes to rotatable penetration, and water or slurry with lubrication action, which is provided by the rotary cone penetration vehicle, is fully used by the rotatable penetration of the casing, so that the depth of the rotatably penetrated casting is obviously greater than that of the casting which is penetrated under static pressure and the feeler level can be prevented from being stressed, bent and then broken; therefore, the static penetration depth of a wireless static cone penetration rod can be improved. Tests prove that the method can realize the deep static cone penetration, and the largest test depth in the Tianjin area is 70 meters. The method has the advantages of obviously improving the static cone penetration depth, along with simplicity in operation.

The invention discloses a multifunctional digital rock-soil static cone penetration test system. The multifunctional digital rock-soil static cone penetration test system comprises a rock-soil static cone penetration combined sensor intelligent transmitter, a CAN (controller area network) bus-based data transmission arbitration unit, a cone penetration depth variation indicator and a rock-soil static cone penetration data processing terminal; the rock-soil static cone penetration combined sensor intelligent transmitter comprises a rock-soil static cone penetration conical tip resistance data measuring module, a side friction resistance data measuring module, a hole pressure data measuring module, an electric resistivity data measuring module, a shear wave velocity data measuring module and a slant angle measuring module; the CAN bus-based data transmission arbitration unit comprises a CAN receiver-transmitter, a communication interface and a CAN scheduling protocol; the cone penetration depth variation indicator comprises a gear rotating device which is in proportion to the depth variation, a gear rotation velocity measuring module and a rotation velocity and depth variation conversion module. The multifunctional digital rock-soil static cone penetration test system has the advantages of multiple functions, combined type, intelligentization, digitalization, convenience in operation and high efficiency.

The invention discloses a cone penetration device. The cone penetration device comprises a cone penetration machine which is provided with a cross beam. The cone penetration device also comprises a protection pipe installing device. The protection pipe installing device contains a protection pipe component, a protection pipe cap, a driving device fixed on the cross beam, a drill stem, wherein the driving device is provided with a rotating part; the lower end of the drill stem is connected with the upper end of the protection pipe component through the protection pipe cap; and the drill stem can be driven by the rotating part to rotate and move downward along the axis of the drill stem. The invention also discloses a cone penetration testing method adopting the cone penetration device. By adopting the method of the invention, the defect that when a deep cone penetration test is performed, the cone penetration machine and a drilling machine used for installing the protection pipe are required to be used alternately, can be solved; and only one device can be used to complete the cone penetration test, thus increasing the efficiency and reducing the equipment cost.

The invention relates to an indoor inclined static cone penetration model test device which is applied to a civil engineering indoor static cone penetration model test. The indoor inclined static cone penetration model test device comprises a penetration system, a sliding device and a test model box. The penetration system comprises a mechanical part and a power part. The mechanical part comprises an angle adjusting support, a static cone penetration rod, a static cone penetration frame, a chain and a gear transmission device, wherein the angle adjusting support, the static cone penetration rod, the static cone penetration frame, the chain and the gear transmission device are connected in sequence. The power part comprises a three-phase asynchronous motor and a variable-frequency governor, wherein the three-phase asynchronous motor and the variable-frequency governor are connected with each other. The sliding device comprises U-steels, square steels and ball bearings, wherein each ball bearing is connected on one U-steel and one square steel. A bottom plate of the test model box is a steel plate, organic glass surrounds the bottom plate, and the bottom plate is connected with the periphery in a sealing mode. In addition, a peripheral skeleton of the test model box is made of angle steel in a welded mode so that the stability of the test model box can be guaranteed. The indoor inclined static cone penetration model test device can achieve the purposes that a penetration test can be conducted at any position of the horizontal plane of the test model box, the penetration rate can be controlled within a certain speed range, and constant speed can be kept. Besides, compared with conventional equipment which can only conduct a vertical static cone penetration test, the indoor inclined static cone penetration model test device can achieve an inclined static cone penetration test within a range of a certain angle of inclination.

The invention discloses a cone penetration test probe suitable for use in deep sea, comprising a conical head and a pore pressure detection device. A pressure cavity is arranged in the probe; the conical head is provided with a water hole. The pore pressure detection device divides the pressure cavity into a front pressure cavity and a rear pressure cavity. The front pressure cavity is communicated with the water hole via a first water passage. The rear pressure cavity is communicated with the outside via a second water passage. The pore pressure detection device includes a first diaphragm, asecond diaphragm, a differential pressure measuring element and an absolute pressure measuring element. The cone penetration test probe herein has the advantages that the differential pressure sensorand the absolute pressure sensor complement each other; namely the differential pressure measuring element having small range but high resolution helps measure a difference between pore pressure and static pressure, so that measurement precision is improved; the absolute pressure measuring element having wide range but small resolution is used to measure static pressure of sea water, thereby facilitating in-situ calibration and giving a consideration to both measurement range and measurement precision.

The invention relates to a liquefaction judgment method based on standard penetration and static cone penetration test correlation. A principle of selecting a static cone penetration test contrast hole of a standard penetration test hole and a reading method for a standard penetration parameter value N and a static cone penetration parameter tip resistance value qc are provided; three influence factors of clay content rhoc, average particle size D50 and soil parameter alphap are considered, the value N and the value qc are fitted, and a statistically correlative relationship of N-qc is provided; and on the basis, a foundation soil liquefaction judgment method based on a static cone penetration test is provided. By the method, the liquefaction judgment of foundation soil can be made relatively quickly and accurately; and compared with the conventional method, the method is simple, economic and quick, and has a good engineering application value.

The invention discloses a method for preparing a big-size model test soil body by layered compaction, comprising the following steps: deciding a filing scheme, processing before soil body filling, borrowing soil based on blocking, putting soil, smoothing in whole, compacting in whole, detecting compaction quality, burying test apparatus and devices, laying an identification layer, testing soil body texture by cone penetration test (CPT) or other in-situ testers and saturating model soil if necessary. In the invention, water content reduction by vacuum pumping, proper air drying in the sun and other methods and combination thereof are adopted to reduce water content of floury soil and silty soil and save labor and cost for drying and other methods. The filling quality and uniformity of the model soil can be accurately controlled by adopting the simple and reasonable filling steps, which is suitable for model tests with high requirements for model soil. The identification layer is laid in the filling layer if necessary, so that soil body deformation can be observed directly by post-test excavation or transparent observation windows on side walls.

The invention discloses a novel saturation device for a piezocone penetration probe measurement system and a filter ring thereof. The device mainly comprises a probe (1), a hole pressure filter ring (9), a sealed container (3) and a vacuum pump (7); an aperture is opened in the middle of the upper part of the sealed container (3); a taper angle root at the lower part of the probe (1) is provided with the hole pressure filter ring (9); the bottom half of the probe (1) penetrates into the sealed container (3) through the aperture; an O-shaped seal ring (4) is embedded between the probe (1) and the aperture; the upper part of the sealed container (3) is provided with a clamp (2); glycerin (8) is injected in the sealed container (3); the sealed container (3) is connected with the vacuum pump (7) by an air duct (5); and the upper part of the vacuum pump (7) is provided with an exhaust valve (6). By using the saturation device, the saturation device has the characteristics of facility, labor conservation, high efficiency and the like and provides a powerful saturation tool for the in-situ pore water pressure static cone penetration test experiment.

The invention relates to a static cone penetration facility and method for rock and soil geological surveying. The static cone penetration facility and method for rock and soil geological surveying are used for solving the problem that when a protection pipe is utilized to protect a penetration rod to conduct a static cone penetration test at present, much inconvenience exists. According to the static cone penetration facility for rock and soil geological surveying, a lifting plate is arranged above a supporting base, a rotary table is arranged on the lifting plate, and circular holes are formed in the centers of the lifting plate and the rotary table. Plug pins are arranged on the upper surface of the rotary table in the circumferential direction of the circular hole. Grooves which are matched with the plug pins are formed in the circumferential directions of a penetration rod and a protection pipe, and teeth are arranged at the lower end of the protection pipe. The static cone penetration method for rock and soil geological surveying comprises the steps that an inner pipe and the protection pipe are assembled together and fixed to the lifting plate; a motor is started, the end ofthe protection pipe downwards drills a hole, the motor is closed after the protection pipe arrives at the deepest point, the position of the protection pipe is kept, and the inner pipe is taken out;the penetration rod section located above the ground is taken down; and the penetration rod stretches into the protection pipe, a probe arrives at the bottom of the protection pipe and then is fixed to the lifting plate through the plug pins, and the static cone penetration test is conducted after the probe and a signal receiving device are well set.

The invention discloses a static cone penetration test type underground water sampling method. The method is characterized in that the sampling method comprises the following steps: an outer sleeve is pressed into a position above a sampling depth of the soil, and soil in the outer sleeve is emptied; in the outer sleeve, a static cone penetration test type underground water sampler is pressed into the sampling depth, and the sampler is permitted to stand for collecting underground water. The method is advantageous in that the underground water sampling method is convenient and rapid to operate, pollution can be isolated, underground water sampling can be carried out at any designated sampling depth in maximum injection depth range, and direct contact to human is avoided.

The invention relates to a deep hole and ultra-deep hole static cone penetration test method and apparatus. The apparatus is provided with two to five sleeves with diameters from large to small, and each of all the sleeves is provided with a sleeve connector matched with the corresponding sleeve except the sleeve with the largest diameter. Each sleeve connector is provided with an annular tray, and threads are formed in the upper opening and the lower opening of each sleeve connector. When testing is carried out, a static cone penetration test is carried out by adopting a conventional static cone penetration method, the frictional resistance of the side wall of a feeler lever is too large, transmission cannot be effectively carried out to a cone penetration probe, and the depth of cone penetration is affected, overlaying soil is drilled in advance in a preboring manner, the apparatus is protected additionally, and the diameter ratios, the number of layers of the sleeves and the buried depth are selected according to the depth of cone penetration and the requirements for sleeve reducing. The sleeve with the largest diameter is buried in soil and serves as a fixing sleeve with soil friction, and the other sleeves are lowered one after another and are hung on the sleeve on the outermost layer through the annular trays. Hole cleaning is carried out to the preset depth, the static cone penetration probe and the feeler lever are used for testing through the sleeve with the smallest diameter and an alloy bit. With the deep hole and ultra-deep hole static cone penetration test method and apparatus, the deflection angle of the probe can be decreased, and the test depth can be increased.

The invention discloses a cone penetration test reaction device comprising variable-diameter spiral ground anchors and a force exerting disc. The cone penetration test reaction device comprises the ground anchors (2) and the force exerting disc (9) and is characterized in that the ground anchors (2) are mounted between rack support legs (4), a drilling head (1) is arranged at the bottom of each ground anchor (2), a variable-diameter spiral blade (3) is connected to the upper part of each drilling head (1), a threaded section (7) is arranged at the top of each ground anchor (2), the top end of each threaded section (7) is connected with a clamping bolt (8), a ground anchor weight (5) is mounted above the variable-diameter spiral blade (3) of each ground anchor (2), two ends of each ground anchor weight (5) are hung on the rack support legs (4), and a ground anchor nut (6) is mounted at the threaded section (7) of each ground anchor (2) and is in press fit above the corresponding ground anchor weight (5); the force exerting disc (9) can cooperate with the clamping bolts (8) at the top ends of the ground anchors (2) through a clamping groove (10) formed in the middle. The cone penetration test reaction device is simple in structure, portable and practical.

The invention discloses a drill pressure real-time measurement device during construction of a cement mixing pile. The device includes a single-bridge cone penetration test probe, a special connectorand a monitoring main machine; the single-bridge cone penetration test probe is installed at the end of a cement mixing pile drilling rod through the special connector, and during downward drilling, data measured in real time by the single-bridge cone penetration test probe reflects the drill pressure of the cement mixing pile and is remotely transmitted to the monitoring main machine on a cementmixing pile machine for analysis, actual conditions of the soil layer where a drill is located are obtained, and the speed of spraying slurry is adjusted according to the actual conditions to achievedifferential slurry spraying at different soil layers. The drill pressure real-time measurement device has the advantages that different soil layers within a pile formation depth range are accuratelyidentified, the amount of sprayed slurry is adjusted in real time according to actual properties of the soil layers, construction parameters are optimized, and the foundation treatment effect of the cement mixing pile is improved. A result can be judged according the soil layers in real time, the amount of the sprayed slurry is adjusted in real time on the basis of designed intensity, unnecessarywaste of cement is reduced, and the manufacturing price of engineering is reduced.

The invention discloses an offshore foundation reconnaissance and detection integrated platform, and relates to the field of ocean engineering foundation reconnaissance. A cylindrical base stretches out of the sea surface through a transition section; the upper end of the cylindrical base is connected with a water platform; in-situ cross plate testing equipment, static cone penetration test equipment, full-flow penetration test equipment and drilling, sampling and reconnaissance operation equipment are mounted at the upper part of the water platform; a cylindrical partition is arranged inside the cylindrical base to form a reserved void compartment without a top plate; the top of the reserved void compartment without the top plate opens to the water platform; the number of negative pressure jet pumps and the number of negative pressure detection test modules are the same as the number of branch bins of the cylindrical base; four negative pressure jet pumps and four negative pressure detection test modules are arranged on the periphery of the top of the cylindrical base; inner air bags are arranged in the branch bins of the cylindrical base, and are used for adjusting and centralizing in the sinking process. The integrated offshore foundation reconnaissance and detection platform has the benefits that the platform and an offshore wind flashlight type basic mounting ship are coordinated to be used, no extra tug boat or other mounting equipment is needed, and the operation time and cost are greatly reduced.

The invention relates to a static cone penetration system suitable for a shallow sea area. The static cone penetration system comprises a suction cylinder counter-force device; the suction cylinder counter-force device is fixedly connected with a loading device with a shipborne control system, and the loading device is connected with a static penetrometer; the suction cylinder counter-force devicecomprises a suction cylinder with an opening in the lower end, and the suction cylinder is connected with a vacuum pump through a vacuum pump pipe; the static penetrometer comprises a penetration rodconnected with the loading device, the lower end of the penetration rod is connected with a multifunctional static cone penetration probe, and the multifunctional static cone penetration probe is connected with a static cone penetration recorder. The cone penetration system provided by the invention is small in balance weight, low in requirements for a shipborne crane, simple and direct in operation and low in operation cost; and meanwhile, not only is the measurement precision of a foreign static penetrometer kept, but also the problems that an implementing standard way used in a shallow water area is low in precision and a platform type CPT (Cone Penetration Test) is complex in operation process and poor in stability are overcome.

The invention discloses a method for measuring the water level and the water head height of a confined aquifer by the pore pressure static cone penetration test. The method comprises steps of 1) carrying out the pore pressure static cone penetration test on the soil layer of the measured area; 2) according to the soil layer divided by the pore pressure static cone penetration test, determining the aquiclude and the confined aquifer, and determining the top buried depth H1 of the confined aquifer; 3) collecting the pore pressure dissipation test stabilization pore water pressure value u0 in the confined aquifer; and 4) calculating the water level h and the water head height hw of the confined aquifer, wherein the calculation formulas are hw=(u0-[gamma]wD) / [gamma]w=u0 / [gamma]w - D (1) and h=H1 - hw (2), hw indicates the pressure head height of the top surface of the confined aquifer; [gamma]w represents the water weight, taking 10kN / m3; H is the test depth; H1 is the top surface buried depth of the confined aquifer; D is the distance from the hole pressure filter of the pore pressure static cone penetration probe to the top surface of the confined aquifer D = H-h; u0 indicates the pore pressure dissipation test stabilization pore water pressure value at the confined aquifer test depth; h represents the buried depth of the water level of the confined aquifer.

The invention discloses double wheel type sea cone penetration test penetration equipment. According to the equipment, a waterproof motor is fixed by an equipment shell through a waterproof motor support; the equipment shell supports rotary wheels through bearings; a barrel type penetration fixing pipe is arranged on the bottom face of the equipment shell; the fixing pipe can enable a chain type cone penetration test probing rod and a cone penetration test probe combined with the chain type cone penetration test probing rod to penetrate into soil; rotary shafts on the rotary wheels are connected through belts; a data acquisition instrument is fixed to the top of the equipment shell through a data acquisition instrument support; data of the data acquisition instrument are transmitted from the bottom of the probe through a data connecting wire; the data connecting wire is wound on a winder; and a small bearing is arranged in the middle of the winder. By the adoption of the double wheel type sea cone penetration test penetration equipment, the equipment has the characteristics of being in situ, direct, fast, accurate, economical and the like, and a powerful testing tool is provided for foundation treatment practices of geotechnical engineering.

The invention discloses a probe for detecting the concentration of volatile organic matter in a polluted soil body and geotechnical engineering characteristics. The probe comprises a resistivity conepenetration test probe body, the tail of the resistivity cone penetration test probe body is connected with a rotating membrane interface probe through the transfer position, the rotating membrane interface probe comprises a shell connected with the transfer position, a piezocone penetration test (CPTU) cable reserved channel used for allowing a CPTU composite cable to penetrate is formed in the middle of the shell, a U-shaped gas channel is formed in the two sides of the CPTU cable reserved channel, a gas inlet pipe used for inputting circulating carrier gas is arranged at one end of the U-shaped gas channel, a gas outlet pipe is arranged at the other end of the U-shaped gas channel, a gas inlet communicating with the gas outlet pipe is formed in one side of the shell, a gas permeable membrane is arranged at the gas inlet, and a heating module is arranged at the bottom of the gas inlet. According to the probe, the defect that a traditional membrane interface probe neglects the geotechnical engineering characteristics is overcome, testing precision is improved, and concentration distribution of site pollutants can be effectively reflected.

The invention discloses a cone penetration test device with a casing function and a continuous penetration construction technology. The cone penetration test device comprises a feeler lever, a casing,a rack, a first transverse clamping mechanism, a second transverse clamping mechanism, a third transverse clamping mechanism, a fourth transverse clamping mechanism, a longitudinal continuous penetration mechanism, a depthometer, a proximity switch and a controller, the lower end of the casing is connected with the feeler lever through a self-locking mechanism, and the longitudinal continuous penetration mechanism is divided into upper and lower groups of penetration mechanisms. The continuous penetration construction technology is characterized in that alternate circular downward movement ofthe two groups of penetration mechanisms is utilized by the device; the casing and the feller lever are driven by the transverse clamping mechanisms to penetrate downward simultaneously; when the casing is penetrated in place is calculated by cooperatively using the proximity switch and the depthometer; when the casing is penetrated in place, alternate penetration on the feeler lever is carried out by the penetration mechanism individually; after a cone penetration test is completed, pulling is carried out on the feller lever by the longitudinal continuous penetration mechanism firstly; and after the proximity switch detects that the feller lever is self-locked in place, alternate pulling on the casing and the feeler lever is carried out simultaneously.

The invention provides an environmental piezocone penetration test (CPTU) probe capable of evaluating a permeability characteristic of saturated soil in site. The probe comprises an air pressure chamber (1), a water sealing case (2), a cone penetration test probe rod (3), a coupling rod (4), a filtering tank (5), a side wall friction cylinder (6), a pore pressure filtering ring (7) and a corn head (8), wherein the cone penetration test probe rod (3), the coupling rod (4), the filtering tank (5), the side wall friction cylinder (6), the pore pressure filtering ring (7) and the corn head (8) are sequentially connected from top to bottom. The air pressure chamber (1) is provided with an air conveying valve (9), the water sealing case (2) is provided with a water conveying valve (10), the air pressure chamber (1) and the water sealing case (2) are connected through an air conveying pipe (11), the water sealing case (2) is connected with the filtering tank (5) through a water conveying pipe (12), the side wall friction cylinder (6) is provided with an inclinometer (13), a temperature sensor (14) and a pore water pressure sensor (15), and the inclinometer (13), the temperature sensor (14) and the pore water pressure sensor (15) are connected with output cables. The probe is simple in structure, good in quality control, convenient to use, high in detection speed, high in measuring efficiency, accurate and reliable in measurement result and good in repeatability, and is a powerful measuring tool for civil engineering exploration practices.

The invention relates to a method and equipment for arranging a static penetration protection pipe of a deep hole static cone penetration test in shallow soil. The static penetration protection pipe is pressed in the soil by utilizing the power of a static cone penetration machine, therefore, a slip for clamping the protection pipe is arranged at the lower part of the upright shaft of the static cone penetration machine; the protection pipe is downwardly pressed by utilizing the self power of the static cone penetration machine so that the protection pipe is sent into the soil; in the deep hole static cone penetration test, a drilling machine is not utilized to arrange the protection pipe any longer; one set of equipment can be prevented from being conveyed to a construction field; two sets of equipment are unnecessary to be used alternately any longer; the construction efficiency is greatly increased; and the cost is saved.

The invention discloses a device for searching the looseness and emptiness of an urban subway interval road in detail; the detection depth of the device is more than 5m, the road is not damaged by the device, and the device is convenient and fast in field operation and accurate in search result. The device comprises a nondestructive testing device, a quasi-nondestructive testing device and a data processing unit, wherein the nondestructive testing device comprises an orthogonal shock detection three-dimensional scanning device and a digital panoramic peeping imaging device; the quasi-nondestructive testing device comprises a small-hole digital drilling measurement device and a digital pore pressure static cone penetration test device. The invention also provides a method for searching the looseness and emptiness of the urban subway interval road in detail.

The invention relates to a liquefaction judgment method based on standard penetration and static cone penetration test correlation. A principle of selecting a static cone penetration test contrast hole of a standard penetration test hole and a reading method for a standard penetration parameter value N and a static cone penetration parameter tip resistance value qc are provided; three influence factors of clay content rhoc, average particle size D50 and soil parameter alphap are considered, the value N and the value qc are fitted, and a statistically correlative relationship of N-qc is provided; and on the basis, a foundation soil liquefaction judgment method based on a static cone penetration test is provided. By the method, the liquefaction judgment of foundation soil can be made relatively quickly and accurately; and compared with the conventional method, the method is simple, economic and quick, and has a good engineering application value.

The invention discloses a minitype double-bridge probe for static cone penetration tests. The probe is characterized by comprising a horizontally-placed hollow column-shaped conical end body (1), wherein the conical end body (1) is integrally and sequentially connected with a threaded column (3) for connecting with a conical tip (2) and an induction column (5) movably sleeved with a friction drum (4) from left to right; the induction column (5) comprises an induction column front section (6), an induction column middle section (7) and an induction column tail section (8) which are sequentially connected from left to right; the outer diameter of the induction column front section (6) is less than that of the induction column tail section (8) and greater than that of the induction column middle section (7); and first pressure sensors are arranged on the induction column front section (6). The minitype double-bridge probe for the static cone penetration tests, provided by the invention, is convenient to carry, easy in penetration, high in test precision and good in stability.

The invention relates to the field of geological exploration, in particular to a static cone penetration test soil sampler comprising a cylinder with the top and bottom which are provided with screwed threads. The upper side of the wall of the cylinder is provided with an installation hole; a sampling cylinder component which is capable of overturning along the cylinder longitudinally is rotationally fixed in the installation hole; an elastic member contacting with the sampling cylinder component elastically is fixed into the corresponded position of the inner wall of the cylinder and sampling cylinder component. The static cone penetration test soil sampler is capable of sampling required soil samples during the static cone penetration test, workload of field exploration efficiency is improved significantly, the number of drilling is decreased appropriately, the operation time and cost are saved, and the accuracy and efficiency of the static cone penetration test are improved.

The invention relates to the field of geological survey equipment, and provides a static penetrometer ground anchor. The static penetrometer ground anchor comprising an anchor rod and an anchor head disposed at one end of the anchor rod, the anchor head is in a tapered shape, and the anchor rod is of a hollow structure. The static penetrometer ground anchor further comprises a rotating shaft and reeds, the rotating shaft is rotatably mounted on the anchor rod through a hollow structure, the reeds comprise root parts and end parts, the root parts of the reeds are mounted on the rotating shaft, through holes are formed in the positions, corresponding to the end parts of the reeds, of the anchor rod, and the through holes are used for extending out the reed into a soil body. According to the static penetrometer ground anchor, a ground anchor of a retractable anchoring structure is formed through the rotating shaft, the reeds and the through holes arranged corresponding to the anchor rod, the installation and removal process is simple, the anchoring ability is high, the damage to the soil body when the ground anchor is screwed into the soil body is reduced, and the workload and labor intensity of static cone penetration tests are reduced.

The invention discloses light seabed type cone penetration test operation equipment. The equipment comprises an operation platform arranged on an operation sea surface and further comprises a gantry fixing assembly, a lifting assembly, a compensation assembly, a pressurizing assembly, a suction anchor assembly and a probe rod, wherein the gantry fixing assembly is fixedly arranged on the working platform; the lifting assembly is fixedly arranged on the gantry fixing assembly and can move up and down; the compensation assembly is fixedly arranged on the operation platform and used for compensating displacement of the lifting assembly and tension needed by the probe rod in the moving process; the pressurizing assembly is fixedly connected with the lifting assembly through the probe rod and used for driving the probe rod to be pressed down or pulled up; the suction anchor assembly is fixedly connected with the pressurizing assembly and is used for penetrating into the seabed by adsorption or being ejected out of the seabed by pressurizing; and a cone penetration test probe is arranged at the top end of the probe rod. According to the invention, the characteristic of good pulling resistance of a light suction anchor is utilized, a heavy base of a heavy seabed type CPT is replaced, and the purpose that a light structure meets the requirement of CPT operation of heavy CPT driving penetration is achieved.

The invention discloses a cone penetration test detection method for a cement mixing pile with a preset guide pipe. The method includes the steps: firstly, perpendicularly inserting a PVC (polyvinyl chloride) pipe with the bottom closed into the center of the a cement mixing pile within half an hour after cement mixing pile construction, so that a reserved detection hole is formed; and secondly, continuously detecting the pile body strength of the cement mixing pile by means of cone penetration test detection when the cement mixing pile reaches a certain age. The invention further discloses a cement mixing pile body quality evaluation method. The cone penetration test detection method for the cement mixing pile with the preset guide pipe retains the advantages of convenience in implementation, rapidness and low cost, overcomes the defect that a probe is easy to deflect out of the pile so as to be incapable of detecting the pile body completely, and is capable of effectively guaranteeing the angle of the probe.