30results about How to "Safe laying" patented technology

The invention relates to a ground tile for laying cables or optical cables. The ground tile is characterized in that through holes are formed in four side directions of the ground tile, and cables or optical cables can pass through the through holes for laying. When the ground tile is used, the required passing angles of cables or optical cables are selected according to the directions of current ground tiles, and the through holes are communicated after the ground tiles are laid and arranged, so that the cables or optical cables cannot be bent after passing through the through holes, and cannot be broken. The through holes are formed in four side directions of the ground tile, and cables or optical cables can pass through the through holes for laying. The required passing angles of cables or optical cables are selected according to the directions of current ground tiles, and the through holes are communicated after the ground tiles are laid and arranged, so that the cables or optical cables cannot be bent after passing through the through holes and cannot be broken, and laying safety of cables or optical cables can be guaranteed.

The invention discloses a translational traction construction method of PC narrow and high track beams on cast-in-place beams, which is characterized in that it comprises the following steps: S1, translational track installation: laying leveling pads on the cast-in-place beams, and then leveling pads Lay two translational tracks through the cast-in-place beam; S2, construction of the translational traction mechanism; S3, hoisting and fixing of the track beam: hoist the track beam from the side span side of the cast-in-place beam to the two vertical support beams on the horizontal support beam between, and plug the buffer reinforcement pad between the vertical support beam and the track beam; S4, track beam translational traction. The translational traction construction method of the PC narrow and high track beam on the cast-in-place girder of the present invention solves the problem that when the PC narrow and high track beam is erected on the cast-in-place pier column in the middle of the bridge and the cast-in-place beam, the crane and the beam transporter cannot be moved due to the load bearing of the bridge. The technical problem of driving to the bridge for hoisting of track beams.

The invention provides a fiber grating sensor calibration device based on liquid nitrogen conduction cooling, which belongs to the technical field of sensor calibration devices. Including that the top of the liquid storage tank is provided with a liquid storage tank cover, the heat insulation device is arranged at the bottom of the liquid storage tank, and the temperature adjustment tank is arranged above the heat insulation device; the temperature control tank is provided with an isolation tube, and the lower end of the isolation tube runs through the temperature control tank The bottom of the tank is connected to the heat insulation device; the fixed rod runs through the isolation tube and can be inserted into the heat insulation device movably; the fiber grating sensor and the temperature reference sensor are arranged in the fixed rod; the first pipe and the second pipe are arranged on the lid of the liquid storage tank , add liquid nitrogen to the liquid storage barrel and the temperature regulating barrel respectively. The present invention calibrates the optical fiber grating sensor through liquid nitrogen conduction refrigeration, and realizes the calibration of the optical fiber grating sensor in the temperature range of 77-293K; it can conveniently and safely lay the optical fiber grating sensor and the temperature reference sensor into the temperature-changing device, through Isolation reduces heat leakage and makes it easier for the sensor's temperature to reach 77K.

The invention discloses a three-workstation type J-type laying system, comprising: a J-type tower, a pipeline conveying device, a pipeline laying device and an angle adjustment assembly, the J-type tower is rotatably connected with the hull deck, and the pipeline conveying device is used for laying the pipe section Move from the deck to the inside of the J-shaped tower. The pipeline conveying device includes a horizontal conveying assembly and a vertical upper pipe assembly. The horizontal conveying assembly is laid on the deck. The pipeline elevator, rotating arm and vertical pipe wheel; the pipeline laying device is arranged on the J-shaped tower; the two ends of the angle adjustment component are respectively hinged with the J-shaped tower and the deck to adjust the angle of the J-shaped tower. The J-shaped laying system of the present invention arranges three workstations to realize simultaneous welding, non-destructive testing and coating operations of three-section and two-node pipes, greatly improving the laying efficiency, and repairing welding of unqualified parts in time after the completion of non-destructive monitoring. Simplify the laying process and reduce the laying cost.

This invention relates to a kind of ceramic aggregate for road building, which has a mass-fraction composition as follows: 55~60% SiO2, 25~30% Al2O3, 4~7% K2O, 3~5% Li2O, 0.1~0.6% CaO, 2~5% MgO, 0.1~0.8% Fe2O3 and inorganic ceramic pigment weighing 3~5wt% of the total components mentioned above. The ceramic aggregate is fabricated by low-temperature firing. In this invention, raw material composition suitable for rapid low-temperature firing is designed, and therefore, raw materials are low-cost, the technique is simple and efficient, the firing temperature can be lowered by 150~200 deg. C compared to previous techniques and thus it's energy-saving, the firing period is shortened to 4~6 hours and the product eligibility is raised from 80% to over 98%. Besides, the water absorption rate is lower than 1.0%. It has good thermo stability and no cracking comes out when heated or refrigerated sharply. It also has high strength, good wear resistance with a wear rate lower than 13%, a small density of 2.2~2.8 gram per cu cm and high impact strength.

The invention discloses a transport laying apparatus of a permanent separator plate in an electric power tunnel, and a method. The transport laying apparatus comprises an electric transport apparatus and a laying apparatus, wherein the laying apparatus comprises a main frame body, an electric mobile apparatus and an electric elevating apparatus, the main frame body is provided with a main joist, the electric mobile apparatus can move along the main joist, and the electric elevating apparatus is fixedly connected with the electric mobile apparatus. Through the method and the apparatus, a permanent separator plate can be transported and laid rapidly, safely and efficiently without tunnel space restrictions.

The invention relates to a carbon-thermal rail, which comprises a first power line, a second power line and a plurality of carbon rods, wherein the first power line and the second power line are arranged in parallel; the plurality of carbon rods are arranged between the first power line and the second power line and are parallel to one another; two ends of each carbon rod are electrically connected with the first power line and the second power line through each conductive anti-drop connecting device respectively; plug protecting devices are arranged at the connected parts of each carbon rod and the first power line and the second power line respectively; each plug protecting device comprises a power line connecting part and a carbon rod connecting part, which are integrally molded in an injection molding manner; a line-through hole which runs through each power line connecting part along the axial direction of each power line connecting part is formed in each power line connecting part; a connecting hole which is communicated with each line-through hole along the axial direction of each carbon rod connecting part is formed in each carbon rod connecting part; first grooves are formed in the walls of the line-through holes along the circumferential direction; and second grooves are formed in the walls of the connecting holes along the circumferential direction.

The invention discloses a combined roofing system of metal tiles and metal eave rafters. The combined roofing system comprises a metal pressing beam (1), the metal tiles (2), rafters (3), purlines (4), a waterproof board (5), a profiled steel plate (6), a supporting framework (7) and an eave rafter metal plate (8) which are arranged on a main body structure (10); embedded parts (9) are embedded inthe main body structure, the supporting framework is installed on the main body structure through the embedded parts, an upper inclined framework (72) is equipped with an adapter (74), the profiled steel plate is installed on the upper inclined framework through the adapter, the waterproof plate is installed on the profiled steel plate and a lower inclined framework; the purlines are connected with the adapter, the rafters are installed on the purlines, the metal tiles are installed on the rafters, and the metal pressing beam is installed on the top part of the supporting framework and connected with the metal pressing beam in a sealing manner; and the eave rafter metal plate is installed on the lower inclined framework. According to the combined roofing system of the metal tiles and themetal eave rafters, the fact that the whole roofing system has better stability and leakproofness can be ensured, the roofing weight can be reduced, and the hidden dangers of deformation of the waterproof board or falling off of the waterproof board and the adapter due to typhoon weather can be eliminated.

The invention relates to a carbon-thermal rail, which comprises a first power line, a second power line and a plurality of carbon rods, wherein the first power line and the second power line are arranged in parallel; the plurality of carbon rods are arranged between the first power line and the second power line and are parallel to one another; two ends of each carbon rod are electrically connected with the first power line and the second power line through each conductive anti-drop connecting device respectively; plug protecting devices are arranged at the connected parts of each carbon rod and the first power line and the second power line respectively; each plug protecting device comprises a power line connecting part and a carbon rod connecting part, which are integrally molded in an injection molding manner; a line-through hole which runs through each power line connecting part along the axial direction of each power line connecting part is formed in each power line connecting part; a connecting hole which is communicated with each line-through hole along the axial direction of each carbon rod connecting part is formed in each carbon rod connecting part; first grooves are formed in the walls of the line-through holes along the circumferential direction; and second grooves are formed in the walls of the connecting holes along the circumferential direction.

The invention relates to a ground tile for cables or optical cables at different angles. The ground tile is characterized in that through holes are formed in four side directions of the ground tile, and cables or optical cables can pass through the through holes for laying. When the ground tile is used, the required passing angles of cables or optical cables are selected according to the directions of current ground tiles, and the through holes are communicated after the ground tiles are laid and arranged, so that the cables or optical cables cannot be bent after passing through the through holes, and cannot be broken. The through holes are formed in four side directions of a ground tile, and cables or optical cables can pass through the through holes for laying. The required passing angles of cables or optical cables are selected according to the directions of current ground tiles, and the through holes are communicated after the ground tiles are laid and arranged, so that the cables or optical cables cannot be bent after passing through the through holes and cannot be broken, and laying safety of cables or optical cables can be guaranteed.

The invention discloses a seafloor vacuum pipeline traffic system and a pushing type laying method thereof. The system comprises piers built on a seafloor, a pipeline is erected on the piers, the rearend of the pipeline is cooperatively connected with a pushing device and a welding platform, and welded pipelines are pushed to be extended forwards and laid section by section through the pushing device when construction is conducted; the middle of the seafloor vacuum pipeline is provided with a relay pushing station, the pipeline penetrates through the relay pushing station, the relay pushing station is arranged in an artificial island tower, and the front end of the first section pipeline is provided with a positioning guiding diving instrument; the method comprises the steps that a sealing plug is used for sealing a first section pipeline head to be placed into a pushing platform, the pipeline is tightly clamped by a pushing pipe clamp, and another section pipeline is welded to the welding platform; a pushing rod is started, and the pushing pipe clamp and the pipeline enter the sea and are moved forwards constantly until the shore at the other end of the sea is reached. The systemhas the advantages that it is ensured that there exists no bending in the laying process of the pipeline, the system is rapid, efficient and safe, and the engineering cost is low.

The invention discloses a fast strengthening method for ultra-soft earth, comprising the following steps: (1) arranging the separation curtains to divide a plurality of construction areas in the area of waiting for strengthening; pouring water at the field; using the device of artificial inserting plate to insert and arrange the short plastic drainage plate; arranging the horizontal drainage pipeline and then paving a layer of sealing film on the pipeline; forming the strengthening device for shallow layer of ultra-soft earth through the vacuum pumping equipment connected with the pipeline; (2) vacuuming the strengthening device for shallow layer of ultra-soft earth; (3) integrally strengthening the foundation of the device. The fast strengthening method for ultra-soft earth has the advantages that the method can rapidly and effectively solve the problem of strengthening the ultra-soft foundation on the shallow layer, so as to supply the favorable conditions for the construction, suchas drainage sand cushion, plastic drainage board or bag sand-well, and supply an advanced art used for strengthening rapidly the foundation on silt or ultra-soft foundation on the filled silt with saving costs greatly.

The invention provides an indoor ceramic tile laying device and belongs to the field of living furniture. Specifically, the indoor ceramic tile laying device is composed of a rotary laying wheel, ceramic tile tight-suction assemblies, a ceramic tile transferring assembly and a height adjusting air cylinder. The indoor ceramic tile laying device is characterized in that each ceramic tile tight-suction assembly is composed of a first ceramic tile suction cup, a second ceramic tile suction cup, a third ceramic tile suction cup, a suction cup installing plate and a suction cup air cylinder, the suction cup air cylinders are installed on one sides of the suction cup installing plates, the first ceramic tile suction cups, the second ceramic tile suction cups and the third ceramic tile suction cups are installed on the other sides of the suction cup installing plates, and each first ceramic tile suction cup, the corresponding second ceramic tile suction cup and the corresponding third ceramic tile suction cup are installed in a regular triangle shape. The indoor ceramic tile laying device has the beneficial effect that ceramic tiles can be laid efficiently, quickly and safely.

The invention relates to the technical field of ground pile arrangement systems and discloses a lever type ground pile arrangement system and method. The lever type ground pile arrangement system comprises a ground pile 1, a ground pile sleeve 2, a lever 3 and a support 4. The ground pile 1 is sleeved with the ground pile sleeve 2. The exterior of the upper portion of the ground pile sleeve 2 is hinged to the short arm end of the lever 3. The lever 3 is hinged to the support 4 through a detachable pin 6. By the adoption of the lever type ground pile arrangement system and method, the defect that according to a common ground pile arrangement system, time consumption and labor consumption are large when a ground pile is hit in and pulled out is overcome; the ground pile can be hit into the ground rapidly and pulled out of the ground easily, contact is firm, the ground pile arrangement time is shortened, the arrangement efficiency is high, and contact is good; and in addition, ground pile line connection is convenient, safe and high in reliability.