CN108843857B - Municipal pipeline construction device and construction method - Google Patents
Municipal pipeline construction device and construction method Download PDFInfo
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- CN108843857B CN108843857B CN201810718609.0A CN201810718609A CN108843857B CN 108843857 B CN108843857 B CN 108843857B CN 201810718609 A CN201810718609 A CN 201810718609A CN 108843857 B CN108843857 B CN 108843857B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/028—Laying or reclaiming pipes on land, e.g. above the ground in the ground
- F16L1/036—Laying or reclaiming pipes on land, e.g. above the ground in the ground the pipes being composed of sections of short length
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/06—Accessories therefor, e.g. anchors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/06—Accessories therefor, e.g. anchors
- F16L1/11—Accessories therefor, e.g. anchors for the detection or protection of pipes in the ground
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention relates to a municipal pipeline construction device, which belongs to the technical field of pipeline construction and solves the problem that a pipeline is damaged due to overlarge stress, and the municipal pipeline construction device comprises an ejector rod, a guide vehicle, a hydraulic cylinder, a middle pipe and a plurality of pipelines, wherein a plurality of pressing blocks are fixedly arranged on the inner wall of the middle pipe along the circumferential direction; the guide vehicle comprises a frame, a moving assembly, a bearing plate and a limiting assembly, wherein the moving assembly is arranged on the frame and used for supporting the frame and moving along a pipeline, the bearing plate is arranged on the frame and used for bearing the ejector rod, the limiting assembly is arranged on the frame and used for limiting the position of the ejector rod, the moving assembly is arranged in a plurality, and a traction rope is fixedly connected to the frame of the guide vehicle. The arrangement of the middle pipe and the ejector rod prevents the pipeline from being damaged due to overlarge pressure applied to the pipeline in the jacking process.
Description
Technical Field
The invention relates to the technical field of pipeline construction, in particular to a municipal pipeline construction device and a construction method.
Background
In municipal works, there is often the construction work of pipelines.
The Chinese patent with application publication number CN107191676A discloses a buried pipeline construction method, which comprises the following steps:
a. excavating a pipe ditch, and conveying materials in place;
b. after pipe ditches are excavated and materials are in place, a pipe ditch pipeline transfer frame is erected and comprises at least two portal frames, each portal frame comprises a base, an upright post, hoisting beams and a chain block, the bases are arranged on two sides of each portal frame, the uprights are arranged on the bases, the hoisting beams are erected above the upright posts on two sides, each hoisting beam is provided with a cross beam slide rail, the chain blocks are arranged on the cross beam slide rails, the portal frames are erected and arranged above the pipe ditches in a crossing manner, and a space for placing pipelines is reserved between one base of each portal frame and the pipe ditches;
c. conveying the pipeline to the ground reserved below the pipe ditch pipeline conveying frame, splicing and welding the pipeline into a long pipeline, and assisting the pipeline to move and turn over by using the pipe ditch pipeline conveying frame in the splicing process;
d. after the pipeline is processed, hoisting the pipeline by using the pipe ditch pipeline transport frame, synchronously operating the chain blocks on the portal frames, and lowering the pipeline into the pipe ditch to complete the butt joint of the pipeline;
e. and backfilling the pipe trench to finish construction.
When the pipeline construction method is used for construction, the pipe trench is dug firstly, then the pipelines are spliced on the construction site, and after the splicing is finished, the pipeline is lifted by the pipe trench pipeline transport frame and is arranged below the pipe trench, so that the pipeline construction is finished.
The construction method has the disadvantages that the construction method needs to excavate the pipe trench from the ground in advance, which can affect the normal traffic of roads and has limitations for the construction environment of streets.
At present, a pipe jacking construction method can overcome the defects, and the pipe jacking construction is a trenchless or trenchless pipeline burying construction technology, namely a trenchless or trenchless construction method. The pipe jacking construction is that the friction force between the pipeline and the soil around a foundation hole is overcome by means of jacking equipment such as a hydraulic cylinder, a jack and the like in a pre-excavated working well, the pipeline is jacked into the foundation hole from one end close to the working well according to a designed gradient, and earthwork is transported away. After one section of pipeline finishes jacking into the soil layer, the second section of pipeline is laid down to continue jacking.
However, in the pipe jacking construction of which the friction coefficient of soil in a long distance or in front of the movement of the pipeline is increased, the friction force of the soil around a foundation hole, which is needed to be overcome by the pipeline, is increased, particularly the friction force of all the pipelines in the foundation hole is needed to be overcome by the pipeline close to one end of the working well, so that the pressure of the pipeline close to one end of the working well in the jacking process is greatly increased, and even exceeds the self pressure-resisting capacity of the pipeline, so that the pipeline is damaged.
Disclosure of Invention
One of the purposes of the invention is to provide a municipal pipeline construction device which has the advantages of ensuring smooth jacking of a pipeline and preventing the pipeline from being damaged.
The technical purpose of the invention is realized by the following technical scheme:
a municipal pipeline construction device comprises an ejector rod, a guide vehicle, a hydraulic cylinder, a middle pipe arranged in a base hole and a plurality of pipelines arranged in the base hole, wherein a plurality of pressing blocks are fixedly arranged on the inner wall of the middle pipe along the circumferential direction, the ejector rod comprises a working part and a plurality of sections of connecting parts, and the front end of the working part is provided with a butting part for butting the pressing blocks;
the guide vehicle comprises a frame, a moving assembly, a bearing plate and a limiting assembly, wherein the moving assembly is arranged on the frame and used for supporting the frame and moving along a pipeline, the bearing plate is arranged on the frame and used for bearing the ejector rod, the limiting assembly is arranged on the frame and used for limiting the position of the ejector rod, the moving assembly is arranged in a plurality, and a traction rope is fixedly connected to the frame of the guide vehicle.
When the technical scheme is implemented, the ejector rod is placed on the bearing plate during working, the position of the ejector rod is limited through the limiting assembly, the hydraulic cylinder is started, the working part and the connecting part of the ejector rod are jacked into the base hole through the hydraulic cylinder, the abutting part is abutted against the abutting block of the intermediate pipe, the hydraulic cylinder continues working, the intermediate pipe jacks the pipeline into the base hole while the ejector rod jacks, the guide vehicle is driven to move into the base hole when the ejector rod moves, the guide vehicle plays a role in supporting and guiding the ejector rod, after the first pipeline is jacked to the end of the base hole, the guide vehicle and the ejector rod are pulled out of the base hole through the traction rope, the pipeline is jacked into the base hole through the hydraulic cylinder and abutted against the intermediate pipe, and laying of the whole pipeline is completed; the setting of intermediate pipe and ejector pin avoids being close to the pipeline of working well one end and receives the frictional force resistance that all pipelines brought in the base hole, has reduced the pressure that the pipeline that is close to working well one end received, prevents that the pipeline from leading to the pipeline damage at the too big pressure that receives of in-process that advances that pushes up.
Preferably, it includes gyro wheel, stand pipe, guide bar and pneumatic cylinder to remove the subassembly, the stand pipe is fixed to be set up on the frame, the guide bar slides and wears to locate in the stand pipe and to extend to the stand pipe outward, the gyro wheel rotates and sets up in the one end that the frame was kept away from to the guide bar, the pneumatic cylinder is fixed to be set up on the frame and the piston rod of pneumatic cylinder and the guide bar fixed connection in the stand pipe, the flexible direction of piston rod of pneumatic cylinder and the axis collineation of stand pipe.
According to the technical scheme, when the diameter of the pipeline is large, the pneumatic cylinder is started, the piston rod of the pneumatic cylinder extends out and drives the guide rod to extend out of the guide pipe, so that the upper ejector rod of the guided vehicle is lifted, the abutting part is ensured to be opposite to the pressing block, the guided vehicle is suitable for pipelines with various diameters, the friction resistance of the guided vehicle in movement is reduced due to the arrangement of the rollers, and the guided vehicle is more smooth in movement.
Preferably, spacing subassembly includes fixed block, spacing groove and stopper, the fixed block is fixed to be set up on the frame, the spacing groove is seted up on the fixed block, the stopper is fixed to be set up on work portion and connecting portion and is used for preventing the ejector pin when the stopper inserts the spacing groove for guide vehicle axial slip.
According to the technical scheme, when the ejector rod is installed, the ejector rod is placed on the bearing plate, the limiting blocks on the working portion and the connecting portion are inserted into the limiting grooves, and the limiting blocks are matched with the limiting grooves to achieve the purpose of preventing the ejector rod from sliding relative to the guide vehicle.
Preferably, the bearing plate is movably arranged on the frame, and a driving source for driving the bearing plate to lift is fixedly arranged on the frame.
According to the technical scheme, the driving source is started, the driving source drives the bearing plate to move, and the heights of the bearing plate and the ejector rod are conveniently adjusted, so that the abutting portion is opposite to the pressing block.
Preferably, the frame is provided with sliding chutes at two ends of the bearing plate along the vertical direction, and the bearing plate is connected with the sliding chutes in a sliding manner.
Implement above-mentioned technical scheme, the setting of spout plays the effect to accepting the board direction, guarantees to accept the stability of board motion.
Preferably, the one end that the work portion is close to connecting portion is provided with the inserted block, the one end that the work portion was kept away from to connecting portion is provided with the inserted block, the one end that connecting portion are close to the work portion is seted up annular and with the slot of inserted block looks adaptation.
According to the technical scheme, the insertion block is matched with the insertion groove, the working portion is connected with the connecting portion, the connecting portion is connected with the connecting portion, the limiting effect is achieved on the working portion and the connecting portion, and the working portion and the connecting portion are guaranteed to be located on the same axis.
Preferably, the ejector pin is hollow structure, butt portion sets up in the collar of work portion front end and the fixed butt piece that is used for butt briquetting that sets up on the collar including rotating, annular spout has been seted up on the work portion, the fixed annular slider who slides with annular spout and be connected that is provided with on the collar, the work portion internal fixation is provided with the motor, the output shaft and the coaxial fixed connection of collar of motor.
According to the technical scheme, the motor drives the mounting ring to rotate through the starting motor, the mounting ring drives the abutting block to move, the abutting block is opposite to the abutting block, the position of the abutting block can be conveniently adjusted, the ejector rod is arranged to be of a hollow structure, the weight of the ejector rod is reduced, and therefore the pressure of the guide vehicle on the pipeline is reduced.
Preferably, the annular sliding groove is a T-shaped groove, and the annular sliding block is a T-shaped block matched with the T-shaped groove.
Implement above-mentioned technical scheme, the T-slot cooperates with T-shaped piece, prevents effectively that the collar from breaking away from annular spout.
Preferably, a friction washer is fixedly provided on the front end surface of the working portion, the friction washer being in contact with the mounting ring.
Implement above-mentioned technical scheme, friction between collar and the work portion has been increased in the setting of friction washer, avoids the during operation, and the collar rotates easily, guarantees the butt piece and keeps the state with the butt of butt piece.
The invention also aims to provide a municipal pipeline construction method which has the advantages of ensuring the smooth jacking of the pipeline and preventing the pipeline from being damaged.
A municipal pipeline construction method comprises the following steps:
firstly, excavating a working well;
secondly, mounting a hydraulic cylinder and laying a track at the bottom of the working well, wherein the track is made of I-shaped steel;
step three, excavating a foundation hole for a pipeline to penetrate through by using a soil pressure balance push bench;
hoisting the pipeline to a track under the working well, and jacking the pipeline into the base hole through a hydraulic cylinder;
fifthly, calculating the length of the jacked pipeline in the base hole according to the length of each pipeline and the number of the pipelines jacked into the base hole, jacking the middle pipe into the base hole through a hydraulic cylinder when the length of the pipelines in the base hole is about half of the total length of the base hole, then installing and fixing the working part of the ejector rod on a guide vehicle, jacking the working part, the connecting part and the guide vehicle into the base hole through the hydraulic cylinder, enabling the abutting part to abut against the abutting block, and pushing the ejector rod and the middle pipe to advance through the hydraulic cylinder;
and step six, after the first pipeline is jacked to the end of the base hole, pulling the guide vehicle and the jacking rod out of the base hole through the traction rope, jacking the pipeline into the base hole through the hydraulic cylinder and abutting against the middle pipe.
Implement above-mentioned technical scheme, dig out the working well through the excavator, then at the bottom of the working well installation pneumatic cylinder and lay the track, excavate the basic hole that supplies the pipeline to wear to establish through earth pressure balance push bench, with the pipeline hoist transport to the track of working in the pit on, through the pneumatic cylinder with the pipeline jacking in the basic hole, the track plays the effect to pipeline guide orientation, guarantees that the pipeline is just to the basic hole. Calculating the length of the jacked pipeline in the base hole according to the length of each pipeline and the number of the pipelines jacked into the base hole, jacking the middle pipe into the base hole through a hydraulic cylinder when the length of the pipelines in the base hole is about half of the total length of the base hole, installing and fixing the working part of the ejector rod on a guide vehicle, jacking the working part, the connecting part and the guide vehicle into the base hole through the hydraulic cylinder, enabling the abutting part to abut against the pressing block, and pushing the ejector rod and the middle pipe to advance through the hydraulic cylinder; after the first pipeline is jacked to the end of the base hole, the guide vehicle and the ejector rod are pulled out of the base hole through the traction rope, and then the pipeline is jacked into the base hole through the hydraulic cylinder and is abutted to the middle pipe. The friction resistance caused by all pipelines in the base hole is avoided when the pipeline close to one end of the working well is subjected to the pushing-in process, the pressure applied to the pipeline close to one end of the working well is reduced, and the pipeline damage caused by overlarge pressure applied to the pipeline in the pushing-in process is prevented.
In summary, compared with the prior art, the beneficial effects of the invention are as follows: when the device works, the ejector rod is placed on the bearing plate, the position of the ejector rod is limited through the limiting assembly, the hydraulic cylinder is started, the working part and the connecting part of the ejector rod are pushed into the base hole through the hydraulic cylinder, the abutting part is abutted against the abutting block of the intermediate pipe, the hydraulic cylinder continues to work, the intermediate pipe pushes the pipeline into the base hole while the ejector rod is pushed in, the guide trolley is driven to move into the base hole when the ejector rod moves, the guide trolley plays a role of supporting the guide ejector rod, after the first pipeline is pushed to the end of the base hole, the guide trolley and the ejector rod are pulled out of the base hole through the traction rope, the pipeline is pushed into the base hole through the hydraulic cylinder and abutted against the intermediate pipe, and the whole pipeline is laid; the setting of intermediate pipe and ejector pin avoids being close to the pipeline of working well one end and receives the frictional force resistance that all pipelines brought in the base hole, has reduced the pressure that the pipeline that is close to working well one end received, prevents that the pipeline from leading to the pipeline damage at the too big pressure that receives of in-process that advances that pushes up.
Drawings
FIG. 1 is an overall schematic structural view of an embodiment of the present invention;
FIG. 2 is a cross-sectional view of an embodiment of the present invention;
FIG. 3 is an exploded view of an embodiment of the present invention;
FIG. 4 is an enlarged view of portion A of FIG. 3;
FIG. 5 is an enlarged view of portion B of FIG. 3;
fig. 6 is an enlarged view of a portion C in fig. 3.
Reference numerals: 1. a top rod; 11. a working part; 111. an annular chute; 112. a motor; 113. a friction washer; 12. a connecting portion; 13. a slot; 14. inserting a block; 2. a guide vehicle; 21. a frame; 211. a drive source; 212. a chute; 22. a moving assembly; 221. a roller; 222. a guide tube; 223. a guide bar; 224. a pneumatic cylinder; 23. a bearing plate; 24. a limiting component; 241. a fixed block; 242. a limiting groove; 243. a limiting block; 3. a hydraulic cylinder; 4. an intermediate pipe; 41. a pressing block; 5. a pipeline; 6. an abutting portion; 61. a mounting ring; 611. an annular slider; 62. a butting block; 7. a hauling rope; 8. a working well; 81. a track; 9. a base hole.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows:
as shown in fig. 1 and 2, the municipal pipeline construction device comprises an ejector rod 1, a guide vehicle 2, a hydraulic cylinder 3, a middle pipe 4 arranged in a base hole and a plurality of pipelines 5 arranged in the base hole, wherein the guide vehicle 2 is used for carrying the ejector rod 1 and moves along the axis of the pipelines 5, the hydraulic cylinder 3 is used for pushing the pipelines 5 and the ejector rod 1 to move, a plurality of pressing blocks 41 are fixedly arranged on the inner wall of the middle pipe 4 along the circumferential direction, the number of the pressing blocks 41 is 3 along the circumferential direction, the ejector rod 1 comprises a working part 11 and a plurality of sections of connecting parts 12, and the ejector rod 1 is made of a hollow steel pipe.
As shown in fig. 3 and 4, an insertion block 14 is disposed at one end of the working portion 11 close to the connecting portion 12, an insertion block 14 is disposed at one end of the connecting portion 12 away from the working portion 11, and an annular insertion slot 13 adapted to the insertion block 14 is disposed at one end of the connecting portion 12 close to the working portion 11; the insertion block 14 is matched with the insertion groove 13, so that the connection between the working part 11 and the connecting part 12 and the connection between the connecting part 12 and the connecting part 12 are realized, the limiting effect on the working part 11 and the connecting part 12 is achieved, and the working part 11 and the connecting part 12 are ensured to be positioned on the same axis.
As shown in fig. 3 and 5, the front end of the working portion 11 is provided with an abutting portion 6 for abutting against the abutting block 41, the abutting portion 6 includes a mounting ring 61 rotatably disposed at the front end of the working portion 11 and an abutting block 62 fixedly disposed on the mounting ring 61 and used for abutting against the abutting block 41, 3 abutting blocks 62 are circumferentially disposed, the working portion 11 is provided with an annular chute 111, the section of the annular chute 111 is T-shaped, an annular slider 611 slidably connected with the annular chute 111 is fixedly disposed on the mounting ring 61, the annular slider 611 is provided as a T-shaped block adapted to the annular chute 111, the working portion 11 is internally and fixedly provided with a motor 112, the motor 112 is preferably a servo motor 112, and an output shaft of the motor 112 is coaxially and fixedly connected with the mounting ring 61; the front end face of the working part 11 is fixedly provided with a friction washer 113 abutted against the mounting ring 61, and the friction washer 113 is a rubber ring bonded on the working part 11 to increase the friction force between the mounting ring 61 and the working part 11, so that the mounting ring 61 is prevented from easily rotating, and the abutting block 62 is ensured to be kept in an abutting state against the abutting block 41.
The motor 112 is started, the motor 112 drives the mounting ring 61 to rotate, the mounting ring 61 drives the abutting block 62 to move, the abutting block 62 is opposite to the abutting block 41, the position of the abutting block 62 is convenient to adjust, the ejector rod 1 is of a hollow structure, the weight of the ejector rod 1 is reduced, and therefore the pressure of the guide vehicle 2 on the pipeline 5 is reduced.
As shown in fig. 3 and 6, the guiding vehicles 2 include a frame 21, moving components 22 disposed on the frame 21 for supporting the frame 21 and moving along the pipeline 5, and a receiving plate 23 disposed on the frame 21 for receiving the ejector rod 1, where the receiving plate 23 is an arc-shaped plate, concave surfaces of the arc-shaped plate are attached to the ejector rod 1, each guiding vehicle 2 includes 9 moving components 22 arranged along 3 rows and 3 columns, and the frame 21 of the guiding vehicle 2 is fixedly connected with a traction rope 7, and the traction rope 7 connects two adjacent guiding vehicles 2 end to end.
As shown in fig. 3 and 6, the moving assembly 22 includes a roller 221, a guide tube 222, a guide rod 223, and a pneumatic cylinder 224, wherein the guide tube 222 is fixedly disposed on the frame 21, the guide rod 223 slidably penetrates through the guide tube 222 and extends out of the guide tube 222, the roller 221 is rotatably disposed at one end of the guide rod 223 far away from the frame 21, the pneumatic cylinder 224 is fixedly disposed on the frame 21, a piston rod of the pneumatic cylinder 224 is fixedly connected with the guide rod 223 in the guide tube 222, and a telescopic direction of the piston rod of the pneumatic cylinder 224 is collinear with an axis of the guide tube 222.
When the diameter of the pipeline 5 is larger, the pneumatic cylinder 224 is started, the piston rod of the pneumatic cylinder 224 extends out and drives the guide rod 223 to extend out of the guide tube 222, so that the top rod 1 on the guide vehicle 2 is lifted, the abutting part 6 is ensured to be opposite to the pressing block 41, the pipeline 5 is suitable for pipelines 5 with various diameters, and the arrangement of the roller 221 reduces the friction resistance of the motion of the guide vehicle 2, so that the motion of the guide vehicle 2 is smoother.
As shown in fig. 3 and 6, the frame 21 is provided with a limiting assembly 24 for limiting the position of the top rod 1, the limiting assembly 24 includes a fixing block 241, a limiting groove 242 and a limiting block 243, the fixing block 241 is fixedly arranged on the frame 21, the limiting groove 242 is arranged on the fixing block 241, the limiting block 243 is fixedly arranged on the working portion 11 and the connecting portion 12 and is used for preventing the top rod 1 from axially sliding relative to the guide vehicle 2 when the limiting block 243 is inserted into the limiting groove 242; when the ejector rod 1 is installed, the ejector rod 1 is placed on the bearing plate 23, the working part 11 and the limiting block 243 on the connecting part 12 are inserted into the limiting groove 242, and the limiting block 243 is matched with the limiting groove 242 to achieve the purpose of preventing the ejector rod 1 from sliding relative to the guide vehicle 2.
As shown in fig. 3 and 6, sliding grooves 212 are vertically disposed at two ends of the receiving plate 23 on the frame 21, the receiving plate 23 is connected to the sliding grooves 212 in a sliding manner, a driving source 211 for driving the receiving plate 23 to ascend and descend is fixedly disposed on the frame 21, the driving source 211 is an air cylinder, and the air cylinder is disposed right below the center of the receiving plate 23.
The driving source 211 is started, the driving source 211 drives the bearing plate 23 to move, the heights of the bearing plate 23 and the ejector rod 1 are conveniently adjusted, so that the abutting portion 6 is opposite to the pressing block 41, the sliding groove 212 is arranged to play a role in guiding the bearing plate 23, and the movement stability of the bearing plate 23 is guaranteed.
During the work, the ejector rod 1 is placed on the bearing plate 23, the working part 11 and the limiting block 243 on the connecting part 12 are inserted into the limiting groove 242, the hydraulic cylinder 3 is started, the working part 11 and the connecting part 12 of the ejector rod 1 are pushed into the base hole 9 through the hydraulic cylinder 3, the abutting part 6 is abutted against the abutting block 41 of the intermediate pipe 4, the hydraulic cylinder 3 continues to work, the intermediate pipe 4 pushes the pipeline 5 into the base hole 9 while the ejector rod 1 is pushed, the guide vehicle 2 is driven to move into the base hole 9 when the ejector rod 1 moves, the guide vehicle 2 plays a role of supporting the guide ejector rod 1, after the first pipeline 5 is pushed to the end of the base hole 9, the guide vehicle 2 and the ejector rod 1 are pulled out of the base hole 9 through the traction rope 7, the pipeline 5 is pushed into the base hole 9 through the hydraulic cylinder 3 and abutted against the intermediate pipe 4, and the whole pipeline 5 is laid; the middle pipe 4 and the ejector rod 1 are arranged, so that the friction resistance brought by all the pipelines 5 in the base hole 9 on the pipeline 5 close to one end of the working well 8 is avoided, the pressure on the pipeline 5 close to one end of the working well 8 is reduced, and the pipeline 5 is prevented from being damaged due to overlarge pressure on the pipeline 5 in the jacking process.
Example two:
a municipal pipeline construction method comprises the following steps:
firstly, excavating a working well 8, and excavating the working well 8 at a preset position through manpower or an excavator;
secondly, installing the hydraulic cylinder 3 and a laying track 81 at the bottom of the working well 8, wherein the track 81 is made of I-shaped steel;
thirdly, excavating a foundation hole 9 for the pipeline 5 to penetrate through by using an earth pressure balance push bench, wherein the earth pressure balance push bench selects an NPD type slurry balance push bench to adapt to long-distance push bench construction;
hoisting the pipeline 5 to a track 81 below the working well 8 through a gantry crane, and jacking the pipeline 5 into the base hole 9 through the hydraulic cylinder 3;
fifthly, calculating the length of the jacked pipeline 5 in the base hole 9 according to the length of each pipeline 5 and the number of the pipelines 5 jacked into the base hole 9, jacking the middle pipe 4 into the base hole 9 through the hydraulic cylinder 3 when the length of the pipelines 5 in the base hole 9 is about half of the total length of the base hole 9, then installing and fixing the working part 11 of the ejector rod 1 on the guide vehicle 2, jacking the working part 11, the connecting part 12 and the guide vehicle 2 into the base hole 9 through the hydraulic cylinder 3, enabling the abutting part 6 to abut against the abutting block 41, and pushing the ejector rod 1 and the middle pipe 4 to advance through the hydraulic cylinder 3;
and step five, after the first pipeline 5 is jacked to the end of the base hole 9, pulling the guide vehicle 2 and the jacking rod 1 out of the base hole 9 through the traction rope 7, jacking the pipeline 5 into the base hole 9 through the hydraulic cylinder 3, and abutting against the middle pipe 4.
The above are exemplary embodiments of the invention only, and are not intended to limit the scope of the invention, which is defined by the appended claims.
Claims (10)
1. A municipal pipeline construction device is characterized by comprising a push rod (1), a guide vehicle (2), a hydraulic cylinder (3), a middle pipe (4) arranged in a base hole and a plurality of pipelines (5) arranged in the base hole, wherein the inner wall of the middle pipe (4) is fixedly provided with a plurality of abutting blocks (41) along the circumferential direction, the push rod (1) comprises a working part (11) and a plurality of sections of connecting parts (12), and the front end of the working part (11) is provided with an abutting part (6) for abutting against the abutting blocks (41);
the guide vehicle (2) comprises a vehicle frame (21), a moving assembly (22) arranged on the vehicle frame (21) and used for supporting the vehicle frame (21) and moving along the pipeline (5), a bearing plate (23) arranged on the vehicle frame (21) and used for bearing the ejector rod (1), and a limiting assembly (24) arranged on the vehicle frame (21) and used for limiting the position of the ejector rod (1), wherein the number of the moving assemblies (22) is multiple, and a traction rope (7) is fixedly connected to the vehicle frame (21) of the guide vehicle (2).
2. The municipal pipeline construction device according to claim 1, wherein the moving assembly (22) comprises a roller (221), a guide pipe (222), a guide rod (223) and a pneumatic cylinder (224), the guide pipe (222) is fixedly arranged on the frame (21), the guide rod (223) is slidably arranged in the guide pipe (222) and extends out of the guide pipe (222), the roller (221) is rotatably arranged at one end, far away from the frame (21), of the guide rod (223), the pneumatic cylinder (224) is fixedly arranged on the frame (21), a piston rod of the pneumatic cylinder (224) is fixedly connected with the guide rod (223) in the guide pipe (222), and the extension direction of the piston rod of the pneumatic cylinder (224) is collinear with the axis of the guide pipe (222).
3. The municipal pipeline construction device according to claim 2, wherein the limiting assembly (24) comprises a fixing block (241), a limiting groove (242) and a limiting block (243), the fixing block (241) is fixedly arranged on the frame (21), the limiting groove (242) is arranged on the fixing block (241), and the limiting block (243) is fixedly arranged on the working part (11) and the connecting part (12) and is used for preventing the push rod (1) from axially sliding relative to the guide vehicle (2) when the limiting block (243) is inserted into the limiting groove (242).
4. The municipal pipeline construction device according to claim 3, wherein the bearing plate (23) is movably arranged on the frame (21), and a driving source (211) for driving the bearing plate (23) to ascend and descend is fixedly arranged on the frame (21).
5. The municipal pipeline construction device according to claim 4, wherein the frame (21) is provided with sliding grooves (212) at two ends of the bearing plate (23) along the vertical direction, and the bearing plate (23) is connected with the sliding grooves (212) in a sliding manner.
6. The municipal pipeline construction device according to claim 1, wherein an insertion block (14) is arranged at one end of the working part (11) close to the connecting part (12), the insertion block (14) is arranged at one end of the connecting part (12) far away from the working part (11), and an annular insertion groove (13) matched with the insertion block (14) is formed at one end of the connecting part (12) close to the working part (11).
7. The municipal pipeline construction device according to claim 1, wherein the ejector rod (1) is of a hollow structure, the abutting part (6) comprises a mounting ring (61) rotatably arranged at the front end of the working part (11) and an abutting block (62) fixedly arranged on the mounting ring (61) and used for abutting against the abutting block (41), an annular sliding groove (111) is formed in the working part (11), an annular sliding block (611) connected with the annular sliding groove (111) in a sliding manner is fixedly arranged on the mounting ring (61), a motor (112) is fixedly arranged in the working part (11), and an output shaft of the motor (112) is coaxially and fixedly connected with the mounting ring (61).
8. The municipal pipeline construction device according to claim 7, wherein the annular chute (111) is a T-shaped groove, and the annular slider (611) is a T-shaped block adapted to the T-shaped groove.
9. The municipal pipe construction device according to claim 8, wherein the front end face of the working part (11) is fixedly provided with a friction washer (113) abutting against the mounting ring (61).
10. A municipal pipeline construction method, characterized in that the construction is carried out by using the municipal pipeline construction device according to any one of claims 1 to 9, comprising the steps of:
firstly, excavating a working well (8);
secondly, installing a hydraulic cylinder (3) and a laying track (81) at the bottom of the working well (8);
thirdly, excavating a base hole (9) for the pipeline (5) to penetrate through by using a soil pressure balance push bench;
hoisting the pipeline (5) to a track (81) below the working well (8), and jacking the pipeline (5) into the base hole (9) through the hydraulic cylinder (3);
fifthly, calculating the length of the jacked pipeline (5) in the base hole (9) according to the length of each pipeline (5) and the number of the pipelines (5) in the jacking base hole (9), jacking the middle pipe (4) into the base hole (9) through the hydraulic cylinder (3) when the length of the pipelines (5) in the base hole (9) is about half of the total length of the base hole (9), installing and fixing the working part (11) of the jacking rod (1) on the guide vehicle (2), jacking the working part (11), the connecting part (12) and the guide vehicle (2) into the base hole (9) through the hydraulic cylinder (3), enabling the abutting part (6) to abut against the abutting block (41), and pushing the jacking rod (1) and the middle pipe (4) to advance through the hydraulic cylinder (3);
and step five, after the first pipeline (5) is jacked to the end of the base hole (9), pulling the guide vehicle (2) and the ejector rod (1) out of the base hole (9) through the traction rope (7), and jacking the pipeline (5) into the base hole (9) through the hydraulic cylinder (3) and abutting against the intermediate pipe (4).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810718609.0A CN108843857B (en) | 2018-07-03 | 2018-07-03 | Municipal pipeline construction device and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810718609.0A CN108843857B (en) | 2018-07-03 | 2018-07-03 | Municipal pipeline construction device and construction method |
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| CN108843857B true CN108843857B (en) | 2020-04-14 |
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| CN110360379A (en) * | 2019-07-16 | 2019-10-22 | 中国华西企业股份有限公司 | A kind of jacking device that can prevent pipeline deflection |
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| CN110726004B (en) * | 2019-10-26 | 2021-04-27 | 长兴国晨工程机械科技有限公司 | Machine head for slurry balance push bench |
| CN111005434B (en) * | 2019-11-21 | 2021-02-05 | 中欧国际建工集团有限公司 | Municipal road sewer pipeline construction equipment and construction method |
| CN111501961B (en) * | 2020-04-30 | 2021-05-07 | 江西鲸享荟科技有限公司 | Sewage pipe butt joint device capable of being positioned quickly |
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| CN111473161B (en) * | 2020-06-04 | 2021-11-05 | 深圳市港华建设有限公司 | Laying structure and laying method of gas pipeline system |
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| CN112709313B (en) * | 2020-12-31 | 2022-04-19 | 苏州凯达市政景观建设有限公司 | Municipal sewage pipeline trenchless construction equipment and method |
| CN113236856B (en) * | 2021-05-10 | 2022-07-19 | 湖北交投建设集团有限公司 | Municipal works pipeline push pipe construction structures |
| CN113932069B (en) * | 2021-10-10 | 2023-03-10 | 山东水总有限公司 | Large-diameter steel pipe, mounting equipment and mounting method thereof |
| CN113914876B (en) * | 2021-11-08 | 2024-04-12 | 郑州地铁集团有限公司 | Backfill device for small shield tunnel |
| CN114811184B (en) * | 2021-12-29 | 2023-08-04 | 湖南省正邦建设工程有限公司 | Hydraulic auxiliary directional municipal pipeline segmented laying device and construction method |
| CN115163916B (en) * | 2022-08-01 | 2024-01-16 | 中铁十七局集团建筑工程有限公司 | Jacking guiding device and guiding method for municipal rainwater and sewage pipe jacking construction |
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