30results about How to "Guaranteed continuous construction" patented technology

The invention relates to a double-tube type multifunctional grouting device and its construction method, comprising a grouting pipe and a spraying pipe, the grouting pipe includes an inner pipe and an outer pipe; the outer pipe is an elastic pipe, and the outer pipe is provided with a The grout mouth, the outer tube wraps the inner tube; the inner tube includes an inner tube wall attached to the inner side of the outer tube, and two grouting pipes are formed inside the inner tube wall, and the side wall of the grouting pipe is provided with an inner grout outlet; The grouting pipe is matched with the grouting pipe and inserted into the grouting pipe; it also includes a connecting rod, which is a double-sided dovetail-shaped rod-shaped structure. The gap is matched; this scheme can be applied to various mixing methods, and can be injected into two injection areas at the same time and multiple times. The root grouting pipe can directly expand the grouting depth range, providing a strong guarantee for the implementation of ultra-deep hole grouting.

The invention discloses a large-inclination-angle trash rack-shaped suspension sliding form and a construction method thereof, which include a mold body system and a suspension system; the mold body system includes a trash rack-shaped template formed by splicing panels, and a Ribs and supporting trusses; a working platform is laid on the upper surface of the formwork system; a hydraulic control system is installed on the working platform; the suspension system includes a suspension support frame of a truss structure, and the suspension support frame is fixed on the trash block through anchor bars and steel supports The platform on the grid; there are multiple sets of suspension rods connected to the bottom of the suspension support frame, and the bottom end of the suspension rods is connected to the truss of the form system through a hydraulic jack; the suspension angle of the suspension rods is consistent with the inclination angle of the trash rack; the form system There is a concrete conveying system along the installed steel bars and tracks at the top; there is a missing maintenance system connected to the lower part of the formwork system; the steel bars are bound in place at one time, the installation of grid grooves and tracks is completed at one time, and the second phase of concrete construction is canceled. The characteristics of one-time forming of hanging sliding form.

The invention relates to a vehicle-mounted earth material freezing prevention and control system. The system comprises a tail gas collector (2) and a tail gas filter (3) which are arranged at a tail gas exhausting cylinder (1) of an earth material transporter, a gas pressurizer (7) which is communicated with the tail gas filter (3) and is arranged at the top surface of the vehicle head, and multiple dispersion pipes (5) which are communicated with the gas pressurizer (7) and are arranged inside the carriage. The dispersion pipes (5) are provided with multiple dispersion holes (9) for pressurized hot gas to disperse, and the dispersion holes (9) are provided with protection lids (10). According to the vehicle-mounted earth material freezing prevention and control system, in a transportation process, heat carried in the tail gas can be effectively utilized to raise the temperature of the earth material or defreeze the earth material, the vehicle-mounted earth material freezing prevention and control system is applicable to earth material freezing prevention and control in construction engineering in a cold area or a seasonal frozen soil area, the quality problems of engineering filling that the compactness, the permeability and the strength do not meet the requirements due to the frozen earth material are avoided, and the achievement of continuous construction in a low-temperature environment is guaranteed.

The invention discloses a water level pressure grouting sealing method, which belongs to the field of basement water leakage sealing. It adopts artificial creation of conditions suitable for closed pouring double-fast cement. The water level pressure reduces the water gushing pressure, creates conditions for concrete hardening, and artificially raises For the indoor water level, use the water pressure to reversely press the double-quick mortar into the leak to achieve the plugging effect; the invention has the characteristics of convenient material collection, simple installation, quick response, and flexibility, which can effectively save costs and ensure continuous construction of the basement.

The invention belongs to the technical field of shaft engineering support in underground mining, particularly relates to a soft rock roadway surrounding rock self-support method and a soft rock roadway support stirring injection drilling machine, and mainly solves the support problem of a cracked or soft rock stratum construction roadway with low hardness (Platts hardness coefficient f<=3). By injecting curing agents into roadway surrounding rocks in a stirring manner, the lithology of the roadway surrounding rocks is changed, so that the roadway surrounding rocks have corresponding self-strength, integrity and supporting strength and are automatically cured in situ, gapless undisturbed support of the roadway surrounding rocks is ensured, and the gapless non-yield support mechanism of roadway support is realized.

The invention relates to a high-density consolidation-type leaking stoppage agent. The high-density consolidation-type leaking stoppage agent comprises the following components in parts by weight: 10 to 20 parts of calcium carbonate, 10 to 20 parts of calcium hydroxide, 2 to 6 parts of aluminum oxide, 6 to 10 parts of oil well cement, 40 to 60 parts of iron ore powder, 40 to 60 parts of barite, 3 to 6 parts of sulfonated sodium tannin SMT, 1 to 5 parts of solid polymeric alcohol lubricant, 0.2 to 1 part of acrylamide and sodium acrylate copolymer 80A-51, 0.2 to 1 part of potassium polyacrylamide K-PAM and 0.1 to 0.4 part of biopolymer XC. The preparation method of the high-density consolidation-type leaking stoppage agent comprises the following steps of sequentially adding the substances into a reaction kettle according to the weight ratio and content, stirring and mixing the components for 5 to 6 hours under the normal pressure and the temperature of 50 to 65 DEG C, adding the mixture into a drying device, crushing the mixture into solid powder product of 0.01mm to 0.3mm after the mixture is dried. The high-density consolidation-type leaking stoppage agent is high in density, good in mobility, coagulable, strong in leaking stoppage capacity, toxic-free, pollution-free, wide in raw material source, scientific and simple in process, safe in construction, widely applicable to petroleum and geological drilling process and particularly applicable to the high-pressure leaking stratum.

The invention provides an automatic control system for segmental bridge prefabricated alignment, which belongs to the technical field of segmental bridge prefabricated construction. It solves the problems of slow measurement speed and low degree of automation in manual operation in traditional construction methods. The present invention is used to control the forming module composed of the end mold, the pouring area and the matching area. The matching section is set in the matching area of ​​the forming module, and the pouring section is formed in the pouring area. The present invention includes a method for measuring and setting the matching section The automatic measurement and design unit for the geometric position of the pouring segment, the central control unit for receiving the measurement data of the automatic measurement and design unit and calculating the adjustment amount, and the automatic adjustment unit for adjusting the position of the matching segment. The central control unit is based on the automatic measurement and design The data measured by the unit calculates the error of the matching segment and controls the adjustment amount of the automatic adjustment unit. The invention can automatically stake out and adjust automatically, and has the advantages of high measurement precision, high degree of automation, high production efficiency and the like.

The invention discloses a split type hoisting method for a 5MW land type wind generating set. According to the method, a cabin is hoisted in a split mode, and split into a cabin body, a generator, a maintenance crane and a top housing according to the weight and the boundary dimension of all parts of the cabin and the hoisting capacity of a main hoisting machine; after the cabin is split, software is utilized for analyzing and recalculating the gravity center position to adjust the design of a hoisting sling, and therefore the level and the safety of cabin hoisting are ensured. The main hoisting machine is utilized for sequentially installing the cabin body and the generator in place and sequentially installing the maintenance crane and the top housing in place. According to a general scheme, a 1600t crawler crane is needed when a whole hoisting scheme is adopted for a 5MW fan, while by means of the implementation of the method, the construction requirement can be met by adopting a 1000t crawler crane, and therefore the construction cost is effectively saved.

The invention discloses a building pile foundation construction method. The building pile foundation construction method comprises the following steps of (P1) preparation before drilling, (P2) embedding of protecting barrels, (P3) grouting, (P4) hole drilling, (P5) hole cleaning and (P6) pile forming. According to the building pile foundation construction method, a rotary drilling rig and a percussion drill rig are used for drilling holes in a combined manner, the shortcoming in the existing single pile foundation construction technology is overcome, suitable drill rigs are selected according to different geological conditions, the building pile foundation construction method is not limited by the geological conditions, accidents of hole collapse, drill jamming and the like are avoided, and the quality of a pile foundation is ensured; and moreover, an operation rack is a stable support for the drill rigs, construction of the pile foundation is not affected by soil texture, site mud or raining, continuous construction of the pile foundation is guaranteed, the construction cost is reduced, and the construction efficiency is improved. The building pile foundation construction method is convenient to operate, high in construction speed and obvious in economic benefit; and materials are saved.