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242results about How to "Achieve demolition" patented technology

Flexible mechanical connector applied to ultra-large type ocean floating structure modules

The invention discloses a flexible mechanical connector applied to ultra-large type ocean floating structure modules and an application method thereof. The flexible mechanical connector comprises a positive electrode body placed on one module and a negative electrode body placed on the other corresponding module. The positive electrode body comprises a positive electrode body shell and a positive electrode center shaft placed in the positive electrode body shell. The positive electrode center shaft comprises a first rotation body, a second rotation body and a center shaft rod used for connecting the first rotation body and the second rotation body. The end, far away from the center shaft rod, of the second rotation body is connected with a first power cylinder. The negative electrode body comprises a negative electrode carrier, a second power cylinder placed in the negative electrode carrier, and a locking device placed on the negative electrode carrier. The first power cylinder is started to push the positive electrode center shaft to enter the negative electrode body, and the positive electrode center shaft is locked by the locking device on the negative electrode carrier. The flexible mechanical connector applied to the ultra-large type ocean floating structure modules is simple in structure, convenient to operate, capable of enabling the modules to be connected and disconnected rapidly, and capable of being recycled.
Owner:JIANGSU UNIV OF SCI & TECH

Method for removing reinforced concrete chimney

The invention discloses a method for removing a reinforced concrete chimney. The method for removing the reinforced concrete chimney comprises the following steps of: I, performing buffer layer laying: laying a buffer layer at the toppling position of the reinforced concrete chimney; II, performing guide steel cable installation: laying a guide steel cable for guiding the chimney during a toppling process; III, performing chimney outer side packaging and water spray pipeline laying; IV, performing cutting area marking; V, performing temporary support member installation; VI, performing cutting area concrete chiseling away and steel bar cutting off; VII, performing water spraying; VIII, performing adjustment on the support height of a temporary support member until the chimney is toppled: gradually adjusting the support height of the temporary support member downwards until the chimney is unstable under the effect of the gravity of the chimney and is toppled onto the buffer layer; and IX, clearing a construction site. The method disclosed by the invention is simple in step, reasonable in design, convenient in implementation, high in removal speed and good in using effect. The chimney is entirely, slowly and directionally toppled by utilizing the temporary support effect of the support member, and the construction problem that the reinforced concrete chimney is entirely and rapidly removed under a non-blasting operation condition is solved.
Owner:CHINA RAILWAY FIRST GRP CO LTD

Bridge big-height lifting displacement equipment based on vehicle set and construction method thereof

The invention discloses bridge big-height lifting displacement equipment based on a vehicle set and a construction method thereof. The equipment comprises the vehicle set and a lifting transfer support module; the vehicle set is arranged at the lower part of the lifting transfer support module; the lifting transfer support module comprises at least two rows of conversion connecting beams longitudinally arranged; multiple beam lower outer stand columns, vertically arranged in parallel, are fixedly mounted at the lower parts of each row of the conversion connecting beams; multiple beam lower inner stand columns, corresponding to the beam lower outer stand columns, are arranged on the inner sides of the beam lower outer stand columns; the tops of the beam lower inner stand columns are fixedlyconnected with the bottoms of the conversion connecting beams; the bottoms of the beam lower inner stand columns are fixedly connected with the vehicle set; multiple beam upper support stand columns,vertically arranged in parallel, are fixedly mounted at the upper parts of the conversion connecting beams; upper distribution beams are fixedly mounted on the beam upper support stand columns; and connecting brackets for supporting beam bodies are arranged on the distribution beams. The equipment is simple in lifting displacement structure and convenient to assemble, and can realize quick disassembly, replacement and shifting of big-clearance bridges (groups).
Owner:CCCC ROAD & BRIDGE SPECIAL ENG

Maintenance apparatus for distribution line of urban road

InactiveCN106786132AGuarantee the safety of power transmissionAchieve demolitionApparatus for overhead lines/cablesUrban main roadEngineering
The invention discloses a maintenance apparatus for a distribution line of an urban road. The maintenance apparatus is used for removing bird nests from a telegraph pole so as to ensure power transmission safety of the distribution line. A rotary plate is rotationally mounted on a vehicle body; the rotary plate is provided with a shears-fork type lifter; a lifting adjustment mechanism is arranged on the top of the shears-fork type lifter; a movable plate which can move up and down is arranged on the lifting adjustment mechanism; a big arm is mounted on the movable plate in a hinging manner; a big arm swinging mechanism used for driving the big arm to swing is arranged on the movable plate; a small arm is hinged on the big arm, and a small arm swinging mechanism used for driving the small arm to swing is arranged on the big arm; the small arm is hinged with a front arm, and a front arm swinging mechanism used for driving the front arm to swing is arranged on the small arm; a clamping assembly is arranged at one end of the front arm; the clamping assembly is used for clamping and dismantling bird nests; a push rod assembly is arranged at the other end of the front arm, and the push rod assembly is used for absorbing residual branches by air suction; and a branch recycling assembly is arranged on the vehicle body and used for realizing collection of branches. By virtue of the maintenance apparatus, power transmission safety of the distribution line can be effectively guaranteed.
Owner:SHANGHE COUNTY POWER SUPPLY CO STATE GRID SHANDONG ELECTRIC POWER CO +1

Self-propelled tunnel lining dismantling equipment and using method

The invention relates to equipment for dismantling a tunnel lining, in particular to self-propelled tunnel lining dismantling equipment and a using method. The self-propelled tunnel lining dismantlingequipment comprises a dismantling system, a walking system, a power system and a control system. The dismantling system is used for dividing the to-be-replaced lining of a tunnel into a plurality ofdismantling units separated from a tunnel main body; the walking system is used for conveying the dismantling system to an operation area corresponding to the to-be-replaced lining of the tunnel; thepower system is used for providing power for the dismantling system and the walking system to complete actions; and the control system sends action instructions to the dismantling system, the walkingsystem and the power system. Compared with the prior art, the self-propelled tunnel lining dismantling equipment and the using method have the beneficial effects that protection, cutting and dismantling are realized during tunnel lining replacement, disturbances of lining dismantling to surrounding rock and existing linings are reduced, frequent equipment replacement is not required during construction, the construction safety is guaranteed, the operation efficiency is improved, and the organization difficulty is reduced.
Owner:RES INST OF HIGHWAY MINIST OF TRANSPORT

Power transmission line nest removal device

Disclosed is a power transmission line nest removal device. The power transmission line nest removal device is used for removing nests on power transmission poles to guarantee the safety of power transmission. A sliding platform is installed on a vehicle body in a sliding mode, a translation cylinder is arranged between the sliding platform and the vehicle body, and a fork lifter is arranged on the top of the sliding platform. A lifting adjusting mechanism is arranged on the top of the fork lifter, and a movable plate which moves up and down is arranged on the lifting adjusting mechanism. A big arm is installed on the movable plate in a hinged mode, and a big arm swing mechanism which drives the big arm to swing is arranged on the movable plate. A small arm is hinged to the big arm, and a small arm swing mechanism which drives the small arm to swing is arranged on the big arm. A front arm is hinged to the small arm, and a front arm swing mechanism which drives the front arm to swing is arranged on the small arm. A clamping assembly is arranged at one end of the front arm, and clamps the nests to achieve removal operation. A push rod assembly is arranged at the other end of the front arm, and removes residual branches by blowing or sucking air. The power transmission line nest removal device can efficiently achieve removal of the nests and guarantee the safety of power transmission.
Owner:JUANCHENG POWER SUPPLY CO STATE GRID SHANDONG ELECTRIC POWER CO

Detachable steel beam-concrete filled steel tube column penetrating connection joint

The invention relates to a detachable steel beam-concrete filled steel tube column penetrating connection joint, which includes a concrete-filled steel tube column, H-shaped steel beams and a joint domain, a flange ring plate is arranged at one end of concrete-filled steel tube column, the joint domain comprises a steel pipe and a vertical connection plate communicating with the steel pipe, reinforcing ring plates are arranged on the upper part and the lower part of the steel pipe, the steel pipe, the vertical connection plate and the reinforcing ring plates are all fixed by welding, the steelpipe is poured with ultra-high performance concrete, the flange ring plate is connected with the reinforcing ring plates, and the four H-shaped steel beams are fixed to the joint domain in the shapeof a cross. According to the detachable steel beam-concrete filled steel tube column penetrating connection joint, all components adopt prefabricated connection, the workload of field welding and formwork consumption are significantly reduced, and the construction efficiency is greatly improved; and meanwhile, due to the fact that only bolts and a small amount of anchor bolts are used for connection, after the mission of an original building is completed, the components can be quickly disassembled and reused in a new building, and a more thorough green building structure concept is reflected.
Owner:SOUTH CHINA UNIV OF TECH

Integral horizontally moving type traveling shuttering construction device for long-strip-shaped uniform section concrete structure

The invention provides an integral horizontally moving type traveling shuttering construction device for a long-strip-shaped uniform section concrete structure. The whole device is arranged on a concrete base plate, two pre-buried steel plates are arranged on the base plate, light rails are fixedly connected on the pre-buried steel plates respectively, and a moveable structural steel framework is arranged on the light rails. Beams of the structural steel framework, vertical beams of the structural steel framework and inclined struts of the structural steel framework are connected into a whole through bolts. An interior wall formwork system is indirectly connected with the structural steel framework, and a movable interval is arranged between the interior wall formwork system and the structural steel framework. Angle iron is arranged between beams and formwork supporting pieces and between vertical beams and the formwork supporting pieces in the movable interval, and the angle iron is fixedly connected with the formwork supporting pieces and movably connected with the structural steel beams and/or the structural steel vertical beams. Bolt jacks are fixedly connected in positions, close to the angle iron, of the structural steel beams and/or the structural steel vertical beams and fixedly connected with the angle iron at the same time, and the bolt jacks are used for adjusting and controlling the moving range of the interior wall formwork system relative to the structural steel framework. According to the integral horizontally moving type traveling shuttering construction device for the long-strip-shaped uniform section concrete structure, regular formwork construction can be changed to be rapid, integral and continuous work through tools, the time limit for a project is effectively shortened, the effect is improved, and engineering cost is reduced.
Owner:SHANGHAI GREENLAND CONSTR GRP

Universal ground lead for 110 kilovolt overhead line strain tower

ActiveCN103441353AReliable operationShorten the time for power outage maintenance or power outage emergency repairCoupling device connectionsApparatus for overhead lines/cablesTransmission lineArchitectural engineering
The invention discloses a universal ground lead for a 110 kilovolt overhead line strain tower, belonging to a ground lead of an overhead transmission line. The ground lead comprises a hook head, an insulation rod, a soft copper line and a transverse rod, wherein one end of the soft copper line is installed on the hook head, and the other end of the soft copper line is connected with a grounding chuck; the upper part of the hook head is provided with a U-shaped opening for clamping a lead; one end of the transverse rod is fixed at the root of the hook head, and the other end of the transverse rod is provided with an adjusting support capable of rotating around the transverse rod; the upper part of the insulation rod is fixed on the adjusting support; a nut is arranged at the center of the transverse rod; a lead screw penetrates through the upper end of the nut and is fixedly provided with a lock block; the upper part of the lock block is provided with a circular arc groove; a guide groove which is matched with a straight shank in the middle of the hook head and is capable of sliding up and down along the straight shank in the middle is arranged in the side surface of the lock block; the lower end of the lead screw is connected with one end of a flexible shaft, and the other end of the flexible shaft penetrates through the insulation rod so as to be connected with a rotary shank; and the rotary shank is installed at the bottom end of the insulation rod. The universal ground lead has the advantages of being suitable for any tower shape line hanging structure of the 110 kilovolt overhead line, reliable in lead clamping, and convenient to install and uninstall.
Owner:XUZHOU POWER SUPPLY OF JIANGSU ELECTRIC POWER +2

Electro-hydraulic hybrid drive double-head breaking and disassembling robot and breaking and disassembling method

The invention discloses an electro-hydraulic hybrid drive double-head breaking and disassembling robot and a breaking and disassembling method, and belongs to the technical field of special robots. The double-head breaking and disassembling robot comprises a bearing reversing system, a breaking and disassembling system and a control system. According to the double-head breaking and disassembling robot, the electro-hydraulic hybrid drive is adopted, and the breaking and disassembling system comprises a drill bit, a prying rod and two working heads; transposition in the circumferential positionof the cross section of a kiln body is completed through rotation of a hydraulic arm and a workbench, transposition in the axis direction of a rotating kiln is completed through linear movement of thedouble-head breaking and disassembling robot, and finally the intelligent and efficient breaking and disassembling of residual refractory bricks of the whole kiln body is achieved by the double-headbreaking and disassembling robot through joint work of the drill bit and the prying rod. The double-head breaking and disassembling robot is small in noise in work and high in working efficiency, andthe kiln body of the rotating kiln can be effectively protected.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY

Multifunctional inspection robot

The invention relates to the technical field of robots, in particular to a multifunctional inspection robot. The multifunctional inspection robot comprises a car body and a mechanical arm, wherein themechanical arm is equipped with a first mechanical arm connected with the car body; one end, connected with the car body, of the first mechanical arm is equipped with a connector; the connector is rotatably connected with a connecting shaft of the car body; the first mechanical arm is rotatably connected with a second mechanical arm; the second mechanical arm is rotatably connected with a third mechanical arm; the third mechanical arm is equipped with a fixed arm and a rotary arm; the fixed arm is rotatably connected with the second mechanical arm; the fixed arm is rotatably connected with the rotary arm; the rotary arm can rotate relative to the fixed arm under action of a drive device of the third mechanical arm; one end of the rotary arm is equipped with a detector; and the detector isequipped with a thermal imaging device and an image pick-up device. The multifunctional inspection robot can effectively realize detection on detected equipment, can be suitable for detected equipment at different heights and different positions, improves adaptation in a using process of the robot, and improves precision in a detecting process of the robot.
Owner:GUANGDONG POWER GRID CO LTD +2

Scrap steel strap reeling, bending and recycling device and reeling, bending and recycling method thereof

The invention discloses a scrap steel strap reeling, bending and recycling device and a reeling, bending and recycling method thereof. The device comprises a rising and falling hydraulic cylinder, a pneumatic three-connection part, a first dual-lug-ring angle base, second dual-lug-ring angle bases, a first air cylinder, a second air cylinder and the like; a strap head waste joint is connected witha base assembly, the base assembly is connected with a waste box assembly, a first bolt and nut set is located above the strap head waste joint, the first bolt and nut set is connected with a third bolt and nut set, the third bolt and nut set is located below a fifth bolt connecting part, the fifth bolt connecting part is located below a second mounting plate, the second mounting plate is connected with a press head, the rising and falling hydraulic cylinder is located above the second mounting plate, a second sliding block is located on the right side of the third bolt and nut set, the second sliding block is connected with an air cylinder connecting support, and a cover shell is connected with the base assembly. Each long steel strap manually or automatically detached from a steel coilcan be reeled and bent automatically, and storage and transportation are facilitated.
Owner:SHANGHAI BAOSIGHT SOFTWARE CO LTD

Removable rocking plate type wave generation system applicable to low temperature towed ice water pool

The invention relates to a removable rocking plate type wave generation system applicable to a low temperature towed ice water pool. The system comprises at least one wave generator, vertical brackets, horizontal brackets, rail supporting seats and rails. Each wave generator includes a rocking plate, pendulum shafts, a servo drive system, a sealing box, and a pool bottom foundation steel frame. For each wave generator, the servo drive system is placed in the sealed box; the two rocking plate pendulum shafts are connected with an output shaft of a double-output shaft reducer respectively through couplings; the rocking plate pendulum shafts extend out of the sealing box through sealing interfaces and are connected with bearings fixed on the foundation steel frame; and the servo drive system swings by driving the rocking plate with the pendulum shafts. The pool bottom foundation steel frames of the adjacent wave generators are fixedly connected to ensure the concentricity of the pendulum shafts of each wave generator. The foundation steel frames of the wave generators at the two sides and adjacent to the wall position of an ice water pool are respectively fixedly connected to the vertical brackets, the rails and the rail supporting seats are respectively fixed to upper portions of the two side walls of the ice water pool, and the vertical brackets are connected to the rail supporting seats through the horizontal brackets.
Owner:TIANJIN UNIV

Beam replacement construction system of double-T beam bridge

PendingCN107386128ATakeoff and landingSafe frame replacement constructionBridge erection/assemblyT-beamConstruction engineering
The invention relates to the technical field of beam replacement equipment of a double-T beam bridge and provides a beam replacement construction system of the double-T beam bridge. The beam replacement construction system comprises a beam replacement machine arranged at the position of beam replacement, the beam replacement machine comprises a main beam, two beam hanging carts capable of moving along the lengthwise direction of the main beam are arranged on the main beam, the main beam is erected on the bridge floor through a front guide pillar and a rear guide pillar, both the front guide pillar and the rear guide pillar are of telescopic structures, the beam replacement process is unaffected by natural conditions such as wind and cannot cause deviation to a fall beam, and beam replacement efficiency is improved; one set of special beam conveying trains, beam conveying carts and inverted gantries which are used for conveying an old beam and docking a new beam are respectively arranged on two sides of the beam replacement machine. By the arrangement, lifting height of the equipment can be effectively reduced during construction, team replacement of T-shaped beams is smoothly completed under the working conditions of construction limit requirements, and the fact that beam replacement construction of the full-span simply-supported T-shaped beams in a 'skylight point' is completed safely and efficiently on the premise of not causing any unnecessary impacts on original line equipment can be guaranteed.
Owner:CHINA RAILWAY FIFTH SURVEY & DESIGN INST GRP

Remote bolt dismantling and automatic grabbing tool and using method thereof

ActiveCN110744492ASuitable for underwater remote operationRealize the anti-loose structure damage functionProgramme-controlled manipulatorGripping headsNuclear powerWaste collection
The invention belongs to the technical field of field maintenance of nuclear power plants, and particularly relates to a remote bolt dismantling and automatic grabbing tool and a using method thereof.The top end of a main body of the tool is provided with a special head for removing a bolt, and a positioning mechanism at an outer wall of the main body is located in a guide sliding groove of a side wall of a transition sleeve; the lower part of the transition sleeve is provided with a connecting rod for connecting an outer sleeve; and a guiding mechanism arranged on the connecting rod is located in a guiding sliding groove of the outer sleeve. A remote bolt disengaging special waste container used in cooperation with the tool is also provided. The container comprises an unlocking groove and a waste collecting main body. When in use, a cam mechanism is pressed down to enable a gripper to be opened; then the special head is rotated for bolt anti-loosening damage and screwing, and after the bolt is completely withdrawn, the cam mechanism is lifted to enable the gripper to automatically grab the bolt; and finally, the bolt is placed in the special waste container. The tool has the beneficial effects that functions of underwater automatic centering, anti-loosening structure dismounting, screwing dismounting and automatic clamping and releasing are achieved, the tool is light and reliable, and is suitable for underwater remote operation.
Owner:CNNC NUCLEAR POWER OPERATION MANAGEMENT +1

Replacement equipment of railroad sleeper

The invention relates to replacement equipment of a railroad sleeper. The replacement equipment comprises a lower vehicle assembly, an upper vehicle assembly, a working device and guide mechanisms, wherein the lower vehicle assembly is formed by a lower vehicle frame and walking assemblies mounted on the two sides of the bottom of the lower vehicle frame; the upper vehicle assembly is mounted at the upper part of the lower vehicle assembly; the upper vehicle assembly is also provided with a walking control device; the top of the lower vehicle frame of the lower vehicle assembly is connected with the upper vehicle assembly by a slewing bearing; the upper vehicle assembly is provided with a slewing device matched with the slewing bearing for use; the working device comprises a movable arm, a bucket rod, a ballast scrabbling mechanism and a sleeper replacement mechanism; the guide mechanisms are respectively mounted on the front side and the rear side of the lower vehicle frame; each of the guide mechanisms is formed by a guide main frame and guide wheels rotatably mounted at the two ends of the outer side of the guide main frame. The replacement equipment is reasonable in structural design, and mechanical operations of clearing of ballasts, dismounting of old sleepers, mounting of new sleepers and backfilling of the ballasts are implemented; in addition the replacement equipment has the advantages that the operation is simple and convenient, the labor intensity is small, the degree of automation is high, and the operation efficiency is high.
Owner:德州宝鼎液压机械有限公司

Field disassembling and assembling process of upper reactor internal control rod guide cylinders

The invention belongs to the technical field of pressurized water reactor nuclear power station reactor upper reactor internal control rod guide cylinder assemblies and specifically relates to a fielddisassembling and assembling process of upper reactor internal control rod guide cylinders in order to overcome the physical condition restrictions. According to the field disassembling and assembling process of the upper reactor internal control rod guide cylinders, provided by the invention, related tools are used in cooperation to disassemble and assemble the guide cylinders in the designatedpositions of upper reactor internals. The field disassembling and assembling process is characterized by comprising the steps of dismantling of guide cylinder fastening bolts, dismantling of the upperguide cylinder, dismantling of the lower guide cylinder, reinstallation of the lower guide cylinder, reinstallation of the upper guide cylinder and installation of the guide cylinder fastening bolts.Through the field disassembling and assembling process, the upper and lower guide cylinders in the designated positions of the upper reactor internals can be effectively disassembled and assembled onsite during the establishing, installation and debugging period of a pressurized water reactor nuclear power unit, supporting pins can be disassembled and assembled more reliably, stably and accurately, the disassembling and assembling quality can be ensured, and damage to equipment can be avoided. The field disassembling and assembling process is also applicable to the manufacturer equipment assembly stage.
Owner:SANMEN NUCLEAR POWER CO LTD

Construction method for dismounting concrete support of fabricated subway station

The invention relates to the technical field of pile support system fabricated station construction, in particular to a construction method for dismounting a concrete support of a fabricated subway station. The method comprises the following steps that a plurality of fixing bottom plate blocks are hoisted in sequence, and the bottom plate blocks are tensioned and locked in the depth direction; base grouting, fertilizer tank backfilling and inverted arch backfilling are carried out; grouping is carried out according to a plurality of steel supports corresponding to the lower portion of a firstconcrete support, and the concrete supports and the steel supports are divided into a plurality of groups in the depth direction; and side wall blocks, middle plate blocks and top plate blocks are sequentially assembled in the groups in the depth advancing direction, temporary supports are additionally arranged in the construction advancing direction, and the steel supports and the concrete supports in the groups are dismounted. By means of the construction method, dismounting of the concrete supports is synchronously achieved in the foundation pit and roadway propelling construction process,the original concrete supports and the original steel supports can be dismounted step by step when the bottom plate blocks, the side wall blocks, the top plate blocks and the like are assembled, a dismounting process is simple in technology, the efficiency is higher, and the safety and reliability are achieved.
Owner:KUNMING RAILWAY CONSTR COMPANY OF CHINA RAILWAY NO 8 ENG GRP +2

Intelligent urban street bird nest demolishing device

An intelligent urban street bird nest demolishing device is used for demolishing bird nests on telegraph poles to ensure power transmission security. The intelligent urban street bird nest demolishing device is characterized in that a slide table is mounted on a vehicle body slidably, a translation mechanism is arranged between the slide table and the vehicle body, a scissor-fork lifter is arranged at the top of the slide table, a lifting adjustment mechanism is arranged at the top of the scissor-fork lifter, a movable plate moving up and down is arranged on the lifting adjustment mechanism, a large arm is mounted on the movable plate in a hinge manner, a large arm swing cylinder for driving the large arm to swing is arranged on the movable plate, a small arm is hinged to the large arm, a small arm swing motor for driving the small arm to swing is arranged on the large arm, a front arm is hinged to the small arm, a front arm swing motor for driving the front arm to swing is arranged on the small arm, and a clamping assembly is arranged at one end of the front arm and is used for clamping the bird nests to achieve demolishment. The intelligent urban street bird nest demolishing device is capable of demolishing the bird nests efficiently to ensure power transmission security.
Owner:ZHANGQIU POWER SUPPLY CO OF STATE GRID SHANDONG ELECTRIC POWER CO +1

Multifunctional bolt stud maintenance device

The invention discloses a multifunctional bolt stud maintenance device. The maintenance device comprises a large base, wherein a large support is fixed on the left side of the large base, a motor I isfixed on the upper part of the large support, a driving end of the motor I is in transmission connection with a left locking device, and the left locking device is fixed on the right end face of thelarge support; a sliding mechanism is fixed on the upper part of the large base through a plurality of supporting piles, a supporting mechanism is fixed on the sliding mechanism, a motor II is fixed to the lower part of the supporting mechanism, a driving end of the motor II is in transmission connection with a right locking device, the right locking device is fixed on the left end face of the supporting mechanism, and the axes of the left locking device and the right locking device are located on a straight line; and the device further comprises a rust removal device which is fixed on the left side of the sliding mechanism and located on the lower right portion of the left locking device. According to the maintenance device, two three-jaw chuck is used for clamping a bolt and a stud so asto achieve the purpose of fixing and rotating, so that a nut can be detached under different working conditions, and the semi-automatic rust removal can be carried out the bolt, the stud and the nut;the maintenance device has the advantages of being reliable in performance, simple and convenient to operate, high in automation degree and high in efficiency.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1

Fabricated soil nail wall and soil nail wall construction and dismounting methods

The embodiment of the invention discloses a fabricated soil nail wall and soil nail wall construction and dismounting methods, and relates to the field of foundation pit and slope supporting. Soil nail wall construction working procedures can be simplified, and the construction speed is increased. The soil nail wall comprises soil nails, a wall body and fasteners, one ends of the soil nails are fixed into a soil body, the other ends of the soil nails are suspended outside the soil body, the wall body comprises a plurality of prefabricated slabs provided with connecting structures and soil nail holes, the multiple prefabricated slabs are transversely and longitudinally connected into the wall body through the connecting structures by adopting connecting pieces, the wall body is hung on the soil nails in a sleeving mode from the other ends of the soil nails through the soil nail holes, the wall body is fixedly connected to the soil nails through the fasteners, the first side of the wall body is attached to the soil body, and the second side of the wall body is attached to the fasteners. The fabricated soil nail wall and the soil nail wall construction and dismounting methods provided by the invention are applicable to foundation pit and slope supporting projects.
Owner:NORTH CHINA UNIVERSITY OF TECHNOLOGY +1
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