A pipe jacking construction device for municipal pipelines and its construction method

Abstract

The present invention relates to the technical field of pipe jacking construction, and specifically to a pipe jacking construction device for municipal pipelines and a construction method thereof. The pipe jacking construction device includes a propulsion mechanism and a jacking mechanism, the jacking mechanism includes a jacking pipe body, and the jacking pipe body is slidably connected to a plurality of shovels slidably connected to each other along its outer periphery, and a driving assembly for driving the shovels to slide is installed inside the jacking pipe body, and the inside of the jacking pipe body is rotatably connected to a collecting bucket near its front end, and the collecting bucket is transmission-connected to the driving assembly, and the inside of the jacking pipe body is provided with a crushing assembly connected to the collecting bucket, and the crushing assembly is connected to a discharge assembly, and the inside of the jacking pipe body is installed with a flushing assembly connected to the shovel. The present application adopts a method of combining a shovel with a high-pressure water flow flushing, which can be inserted into clay soil more conveniently and efficiently, can effectively adapt to clay soil during the pipe jacking construction process, and is conducive to improving the working efficiency of pipe jacking construction.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe jacking construction, and in particular to a pipe jacking construction device for a municipal pipeline and a construction method thereof. Background Art

[0002] Pipeline laying is a crucial infrastructure task in municipal engineering construction. Traditional pipe laying methods typically require extensive excavation, which significantly impacts surrounding traffic, the environment, and residents' lives. Furthermore, the construction process is long and costly. Pipe jacking, a trenchless construction method, has gained widespread adoption in recent years.

[0003] At present, existing pipe jacking construction equipment usually uses a rotating cutterhead to drive a scraper, cutting the soil during the jacking process, and then discharging the cut soil through subsequent equipment. During the construction process, the adaptability to soil with high viscosity is poor, and the soil is easy to stick to the cutterhead or scraper, causing blockage, seriously hindering the construction process and reducing construction efficiency.

[0004] Therefore, it is of great practical significance to develop a pipe jacking construction device and a construction method thereof that can adapt to clay soil and improve construction efficiency. Summary of the Invention

[0005] In order to adapt to clay soil and improve construction efficiency during pipe jacking construction, the present application provides a pipe jacking construction device for a municipal pipeline and a construction method thereof.

[0006] The present application provides a municipal pipeline jacking construction device and a construction method thereof using the following technical solutions:

[0007] First aspect

[0008] A jacking construction device for a municipal pipeline includes a propulsion mechanism and a jacking mechanism, the propulsion mechanism is used to push a prefabricated pipeline and the jacking mechanism, the jacking mechanism is used to break the soil and guide the propulsion of the prefabricated pipeline; the jacking mechanism includes a jacking pipe body, and the jacking pipe body is slidably connected to a plurality of shovels slidably connected to each other along its outer periphery, and a driving assembly for driving the shovels to slide is installed inside the jacking pipe body, and the interior of the jacking pipe body is rotatably connected to a collecting bucket near its front end, and the collecting bucket is transmission-connected to the driving assembly, and the interior of the jacking pipe body is provided with a crushing assembly connected to the collecting bucket, and the crushing assembly is connected to a discharge assembly, and the interior of the jacking pipe body is installed with a flushing assembly connected to the shovel.

[0009] Furthermore, the propulsion mechanism includes a rear backrest fixedly installed inside the working well, a propulsion cylinder is fixedly installed on the rear backrest, the telescopic end of the propulsion cylinder is connected to a top iron, and an avoidance hole is opened in the middle of the top iron.

[0010] Furthermore, the driving assembly includes a plurality of jacking cylinders distributed in a centrally symmetrical manner, the jacking cylinders are fixedly installed inside the jacking tube body, a motor bracket is fixedly installed on the outer side of the telescopic end of the jacking cylinder, a plurality of annularly evenly distributed turntable motors are fixedly installed on the motor bracket, the telescopic end of the jacking cylinder is slidably connected to a jacking disk, a driving block is fixedly installed on the jacking disk corresponding to the shovel plate, a driving seat is fixedly installed on the shovel plate corresponding to the driving block, a gear disk is fixedly installed on the jacking disk, a driving gear is fixedly installed on the output shaft of the turntable motor, and the driving gear is engaged with the gear disk.

[0011] Furthermore, the jacking disc is mounted on the collecting bucket, and a number of annularly evenly distributed guide strips are fixedly connected to the inner side surface of the collecting bucket near the front end of the jacking tube body. The outer surface of the collecting bucket is provided with annularly evenly distributed spline grooves corresponding to the jacking disc, and the inner side surface of the jacking disc is provided with spline teeth corresponding to the spline grooves, and the spline teeth are slidably engaged with the spline grooves for transmission.

[0012] Furthermore, a conveying piece is fixedly connected to the inner side wall of the collecting bucket away from the front end of the jacking tube body, and the conveying piece is arranged in a spiral shape.

[0013] Furthermore, the crushing assembly includes a crushing box fixedly connected to the inside of the jacking tube body, one end of the crushing box is sealingly and rotatably connected to the collecting bucket, the other end of the crushing box is fixedly and sealingly connected to a cover plate, the cover plate is sealed and connected to the discharge assembly, the interior of the crushing box is rotatably connected to a first mounting shaft and a second mounting shaft that passes through its side wall, crushing rollers are fixedly mounted on the first mounting shaft and the second mounting shaft located inside the crushing box, and mutually meshing transmission gears are fixedly mounted on the ends of the first mounting shaft and the second mounting shaft located outside the crushing box, and a crushing motor is transmission-connected to one end of the first mounting shaft located outside the crushing box and away from the transmission gear, and the crushing motor is fixedly mounted on the crushing box.

[0014] Furthermore, the discharge component includes a booster pump, which is fixedly connected to the output end of the crushing component. The output end of the booster pump is fixedly connected to several sections of output pipes connected end to end in sequence, and the outermost output pipe is connected to an external sludge collection device.

[0015] Furthermore, the flushing assembly includes a water pump, the input end of the water pump is fixedly connected to several sections of input pipes connected end to end in sequence, the output end of the water pump is fixedly connected to a high-pressure water pipe, the high-pressure water pipe is fixedly connected to a water distribution pipe, and each of the shovel plates on the water distribution pipe is connected to an electric control valve, a liquid flow channel is opened inside the shovel plate, the liquid flow channel and the output end of the electric control valve are sealed and connected through a high-pressure hose, and the inner side surface of the shovel plate is opened along its sliding direction. Several groups of evenly distributed flushing holes are opened, and the flushing holes are sealed and connected to the liquid flow channel.

[0016] Second aspect

[0017] A pipe jacking construction method for a municipal pipeline, using the pipe jacking construction device of the first aspect, comprises the following steps:

[0018] S1. Construction preparation:

[0019] S11. Excavate and pour the working well and receiving well to ensure that the size, verticality and wall strength meet the standards;

[0020] S12. Transport the components of the pipe jacking device to the construction site, assemble and debug the equipment in the working pit;

[0021] S2. Pipe jacking construction:

[0022] S21. Hoisting the prefabricated pipe into the working well, so that the prefabricated pipe abuts between the propulsion mechanism and the jacking mechanism, and passing the portion of the discharge assembly and the flushing assembly connected to the outside through the prefabricated pipe;

[0023] S22. The propulsion mechanism and the jacking mechanism are activated. The jacking mechanism shovels into the soil. The soil shoveled into the soil by the jacking mechanism is flushed by the flushing assembly and then enters the crushing assembly through the collection bucket. The crushing assembly crushes the rocks and clods in the soil to form slurry. The discharge assembly transports the crushed slurry from the crushing assembly to a collection device on the ground.

[0024] S22. When the prefabricated pipe in section 1 is pushed into place, stop pushing and repeat steps S21 to S22;

[0025] S3. Construction completion and acceptance: After the jacking mechanism enters the receiving well, the equipment operation is stopped and a comprehensive inspection is carried out on all the prefabricated pipes.

[0026] Furthermore, in step S2, after one section of the prefabricated pipe is pushed into place and before another section of the prefabricated pipe is installed, a connecting sleeve is installed between the two adjacent sections of the prefabricated pipe.

[0027] Beneficial effects achieved:

[0028] The present application adopts a method of combining a shovel with a high-pressure water flow flushing, which can be inserted into the sticky soil more conveniently and efficiently. The soil is flushed by the high-pressure water flow of the flushing component, which can not only quickly and effectively break the soil, but also effectively avoid the sticking and blockage between the sticky soil and the shovel and the collection bucket. Even if it encounters stone obstruction, it can be avoided by pushing the stone to slide in the soil. It can effectively adapt to the sticky soil during the pipe jacking construction process, which is conducive to improving the work efficiency of the pipe jacking construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0030] Figure 2 It is a schematic diagram of the structural decomposition of an embodiment of the present application.

[0031] Figure 3 It is a schematic diagram of the internal structure of an embodiment of the present application.

[0032] Figure 4 It is a schematic diagram of the structural decomposition of the drive component in one embodiment of the present application.

[0033] Figure 5 It is a schematic diagram of the structural decomposition of the crushing component in one embodiment of the present application.

[0034] Figure 6 It is a schematic diagram of the structural decomposition of the flushing component in one embodiment of the present application.

[0035] Figure 7 yes Figure 3 A magnified schematic diagram of the structure of Part I.

[0036] Figure 8 yes Figure 3 Schematic diagram of the enlarged structure of Part II.

[0037] Explanation of reference numerals: 100, propulsion mechanism; 101, rear backrest; 102, propulsion cylinder; 103, jacking iron; 104, avoidance hole; 200, jacking mechanism; 201, jacking tube; 202, shovel plate; 203, collecting bucket; 204, guide bar; 205, spline groove; 206, conveying sheet; 300, driving assembly; 301, jacking cylinder; 302, motor bracket; 303, turntable motor; 304, jacking disk; 305, driving block; 306, driving seat; 307, toothed disk; 308, driving gear; 309, spline teeth; 400, crushing assembly; 401, crushing box; 402, cover plate; 403, first safety Mounting shaft; 404, second mounting shaft; 405, crushing roller; 406, transmission gear; 407, crushing motor; 500, discharge assembly; 501, booster pump; 502, output pipe; 600, flushing assembly; 601, water pump; 602, input pipe; 603, high-pressure water pipe; 604, water distribution pipe; 605, electric control valve; 606, liquid flow channel; 607, high-pressure hose; 608, flushing hole; 700, receiving well; 800, working well; 900, prefabricated pipeline; 901, connecting sleeve; 902, connecting groove; 903, grouting hole; 904, grouting channel; 905, inclined surface; 906, spraying hole; 907, protective cover. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1-8 This application is described in further detail.

[0039] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0041] The embodiments of the present application disclose a pipe jacking construction device and a construction method for a municipal pipeline.

[0042] The invention technology is summarized and designed by the general contracting project of the reconstruction and renovation of the Luojiahu pump station and the design and construction of the first phase of the Taozihu pollution control project (the main project of the pump station, the south area and the north area of the supporting pipe network project). During the construction of the reconstruction and renovation of the Luojiahu pump station and the first phase of the Taozihu pollution control project, the soil structure is mostly sticky soil with high humidity, and there are stones mixed in the sticky soil. When using traditional pipe jacking technology for construction, the sticky soil is very easy to stick to the cutter disc and scraper of the pipe jacking machine, and the stones mixed in the sticky soil will slip when facing the scraper of the pipe jacking machine, making it difficult to effectively crush them, which seriously restricts the construction efficiency of the pipe jacking construction. For this reason, a pipe jacking construction device and a construction method for municipal pipelines disclosed in this application are proposed, aiming to improve the regional drainage capacity, realize the separation of rainwater and sewage, purify the water quality of Taozihu, and create a good urban ecological environment.

[0043] Example 1

[0044] Please refer to the Figures 1 to 7 This embodiment discloses a pipe jacking construction device for a municipal pipeline, comprising a propulsion mechanism 100 and a jacking mechanism 200. The propulsion mechanism 100 is used to propel a prefabricated pipe 900 and the jacking mechanism 200 is used to break the soil and guide the advancement of the prefabricated pipe 900. The propulsion mechanism 100 includes a rear backrest 101 fixedly mounted within a working well 800. A propulsion cylinder 102 is fixedly mounted on the rear backrest 101. A jacking iron 103 is connected to the telescopic end of the propulsion cylinder 102. A central portion of the jacking iron 103 has an escape hole 104, through which the discharge assembly 500 and the flushing assembly 600 can pass. The jacking mechanism 200 includes a jacking tube body 201, and a number of shovel plates 202 slidably connected to each other are slidably connected along the outer periphery of the jacking tube body 201. A driving component 300 for driving the shovel plates 202 to slide is installed inside the jacking tube body 201. The interior of the jacking tube body 201 is rotatably connected to a collecting bucket 203 near its front end. The collecting bucket 203 is transmission-connected to the driving component 300. A crushing component 400 connected to the collecting bucket 203 is provided inside the jacking tube body 201. The crushing component 400 is connected to a discharge component 500. A flushing component 600 connected to the shovel plates 202 is installed inside the jacking tube body 201.

[0045] The implementation principle of a pipe jacking construction device for a municipal pipeline in the embodiment of the present application is as follows:

[0046] After the propulsion cylinder 102 is activated, its telescopic end extends, pushing the push iron 103 forward. The push iron 103 then propels the prefabricated pipe 900 and the jacking mechanism 200 forward as a whole, ensuring that the jacking mechanism 200 maintains a certain pressure on the soil. At this point, the drive assembly 300 sequentially drives the shovel blades 202 to slide along the periphery of the jacking tube 201. The shovel blades 202 on the periphery of the jacking tube 201 successively dig into the soil. As the shovel blades 202 successively dig into the soil, the flushing assembly 600 sprays pressurized water from the shovel blades 202, flushing the soil. The flushed soil enters the collection hopper 203. As the flushed soil is collected, the drive assembly 300 drives the collection hopper 203 to rotate, allowing it to better collect the soil and enter the crushing assembly 400. The crushing assembly 400 further breaks the soil into smaller particles, which are then discharged through the discharge assembly 500 along with the water flow.

[0047] The present application adopts a method of combining the shovel plate 202 with high-pressure water flow flushing, which can be inserted into the sticky soil more conveniently and efficiently. The soil is flushed by the high-pressure water flow of the flushing component 600, which can not only quickly and effectively break the soil, but also effectively avoid the sticking and blockage between the sticky soil and the shovel plate 202 and the collection bucket 203. Even if it encounters stone obstruction, it can be avoided by pushing the stone to slide in the soil. It can effectively adapt to the sticky soil during the pipe jacking construction process, which is conducive to improving the work efficiency of the pipe jacking construction.

[0048] Please refer to the Figures 1 to 7 In one embodiment of the present application, the driving assembly 300 includes a plurality of jacking cylinders 301 distributed in a centrally symmetrical manner. The jacking cylinders 301 are fixedly installed inside the jacking tube body 201. A motor bracket 302 is fixedly installed on the outer side of the telescopic end of the jacking cylinder 301. A plurality of annularly evenly distributed turntable motors 303 are fixedly installed on the motor bracket 302. The telescopic end of the jacking cylinder 301 is slidably connected to the jacking disk 304. A driving block 305 is fixedly installed on the jacking disk 304 corresponding to the shovel plate 202. A driving seat 306 is fixedly installed on the shovel plate 202 corresponding to the driving block 305. A toothed disk 307 is fixedly installed on the jacking disk 304. A driving gear 308 is fixedly installed on the output shaft of the turntable motor 303, and the driving gear 308 is engaged with the toothed disk 307.

[0049] The shovel plate 202 is driven by the drive block 305 and the drive seat 306 on the shovel plate 202 is engaged with the drive block 305 on the shovel plate 202, thereby driving the shovel plate 202 to slide forward along the outer periphery of the jacking tube 201, thereby breaking the soil.

[0050] Furthermore, by controlling the insertion order and shoveling depth of the shovel plates 202, the direction in which the jacking pipe 201 as a whole enters the soil can be fine-tuned. For example, by shoveling the same depths in a symmetrical manner, the jacking pipe 201 as a whole can enter the soil in a straight line. If it is necessary to control the jacking pipe 201 to deflect in a certain direction, it is only necessary to control the shovel plates 202 in the target direction to shovel deeper first, and control the shovel plates 202 in the opposite direction to shovel later, and to shovel shallower, so that the jacking pipe 201 as a whole gradually deflects in the target direction. In this way, by cooperating with existing positioning technology, it is possible to ensure that the jacking mechanism 200 accurately guides the prefabricated pipe 900 into the receiving well 700.

[0051] Please refer to the Figures 1 to 7 In one embodiment of the present application, the jacking disc 304 is mounted on the collecting bucket 203, and a number of annularly evenly distributed guide strips 204 are fixedly connected to the inner side surface of the collecting bucket 203 near the front end of the jacking tube body 201. The outer surface of the collecting bucket 203 is provided with annularly evenly distributed spline grooves 205 corresponding to the jacking disc 304, and the inner side surface of the jacking disc 304 is provided with spline teeth 309 corresponding to the spline grooves 205, and the spline teeth 309 are slidably engaged with the spline grooves 205 for transmission.

[0052] During operation, when the jacking cylinder 301 pushes the jacking plate 304 forward, the spline teeth 309 on the inner side of the jacking plate 304 slide along the spline grooves 205 on the outer surface of the collection bucket 203. Due to the sliding engagement between the spline teeth 309 and the spline grooves 205, the jacking plate 304 will not cause the collection bucket 203 to rotate about its own axis while being pushed forward.

[0053] After all the shovel blades have been shoveled into the soil, if the collection bucket 203 needs to be rotated to enhance soil collection, the jacking cylinder 301 is retracted to its initial position, and the turntable motor 303 is controlled to rotate the gear plate 307 via the driving gear 308, thereby driving the jacking plate 304. The rotation of the jacking plate 304, through the transmission of the spline teeth 309 and the spline grooves 205, can drive the collection bucket 203 to rotate continuously and rapidly, thereby enhancing the collection effect.

[0054] Please refer to the Figures 1 to 7 In one embodiment of the present application, a conveying piece 206 is fixedly connected to the inner side wall of the collecting hopper 203 away from the front end of the jacking tube body 201, and the conveying piece 206 is arranged in a spiral shape. When the collecting hopper 203 rotates under the drive of the driving component 300, the conveying piece 206 fixed on the inner side wall away from the front end of the jacking tube body 201 and arranged in a spiral shape rotates synchronously therewith. Under the action of the conveying piece 206, the clay soil containing stones collected in the collecting hopper 203 is subjected to a component force along the direction of the spiral line. This component force drives the soil and stones along the inner wall of the collecting hopper, from the open end of the collecting hopper to the end opposite to the front end of the jacking tube body 201, and then transports the materials to the crushing component 400 connected to the collecting hopper 203 for subsequent crushing and discharge operations.

[0055] Please refer to the Figures 1 to 7 In one embodiment of the present application, the crushing assembly 400 includes a crushing box 401 fixedly connected to the inside of the jacking tube body 201, one end of the crushing box 401 is sealed and rotatably connected to the collecting bucket 203, the other end of the crushing box 401 is fixedly and sealedly connected to a cover plate 402, the cover plate 402 is sealed and connected to the discharge assembly 500, the inside of the crushing box 401 is rotatably connected to a first mounting shaft 403 and a second mounting shaft 404 that passes through its side wall, the first mounting shaft 403 and the second mounting shaft 404 are both fixedly mounted with crushing rollers 405 located inside the crushing box 401, and the first mounting shaft 403 and the second mounting shaft 404 are both fixedly mounted with mutually meshing transmission gears 406 at one end located outside the crushing box 401, and the end of the first mounting shaft 403 located outside the crushing box 401 and away from the transmission gear 406 is transmission-connected to a crushing motor 407, and the crushing motor 407 is fixedly mounted on the crushing box 401.

[0056] As the collection hopper 203 rotates, the spiral conveyor blades 206 convey the clay soil containing rocks into the crushing chamber 401, which is in a sealed, rotatable connection with the collection hopper. The crushing motor 407 is activated, and its output shaft drives the first mounting shaft 403 to rotate. The transmission gear 406 on the first mounting shaft 403 meshes with the transmission gear 406 on the second mounting shaft 404, causing the second mounting shaft 404 to rotate in the opposite direction of the first mounting shaft 403. Crushing rollers 405 are fixedly mounted on both the first and second mounting shafts 403 and 404. The counter-rotating rotation of these two shafts drives the crushing rollers 405 to rotate relative to each other. The material entering the crushing chamber 401 is subjected to compression, shearing, and kneading between the relatively rotating crushing rollers 405, breaking rocks into smaller pieces and further reducing the clay soil. The crushed material then passes through the cover plate 402, which is fixedly and sealed to the other end of the crushing chamber 401, and into the discharge assembly 500, which is in sealed communication therewith, for discharge.

[0057] Please refer to the Figures 1 to 7 In one embodiment of the present application, the discharge component 500 includes a booster pump 501, which is fixedly connected to the output end of the crushing component 400. The output end of the booster pump 501 is fixedly connected to several sections of output pipes 502 connected end to end in sequence, and the outermost output pipe 502 is connected to an external sludge collection device.

[0058] During operation, the material crushed by the crushing assembly 400, including crushed stone particles and finely divided clay soil, enters the connected booster pump 501 along with the water flow. Once activated, the booster pump 501 applies pressure to the incoming material, increasing its kinetic energy and pressure, enabling it to overcome resistance during pipeline transportation. Under the action of the booster pump, the material enters the output pipe 502 at a high pressure and velocity. Because the output pipe is composed of multiple sections connected end to end, the material passes through each section of the output pipe 502 in sequence, ultimately being transported from the outermost output pipe 502 to an external sludge collection device, completing the material discharge operation.

[0059] Please refer to the Figures 1 to 7 In one embodiment of the present application, the flushing assembly 600 includes a water pump 601, the input end of the water pump 601 is fixedly connected to a plurality of input pipes 602 connected end to end in sequence, the output end of the water pump 601 is fixedly connected to a high-pressure water pipe 603, the high-pressure water pipe 603 is fixedly connected to a water distribution pipe 604, and the water distribution pipe 604 is connected to an electric control valve 605 corresponding to each shovel plate 202, and a liquid flow channel 606 is provided inside the shovel plate 202, and the liquid flow channel 606 is sealed and connected to the output end of the electric control valve 605 through a high-pressure hose 607, and the inner side surface of the shovel plate 202 is provided with a plurality of groups of evenly distributed flushing holes 608 along its sliding direction, and the flushing holes 608 are sealed and connected to the liquid flow channel 606.

[0060] During operation, starting the water pump 601 allows water to be pumped from an external water source through the input pipes 602 connected end to end. The pumped water is significantly pressurized by the water pump 601 and is then transported to the water distribution pipe 604 via the high-pressure water pipe 603. The water distribution pipe 604 distributes the high-pressure water to the electrically controlled valves 605 of each corresponding shovel blade 202. When the shovel blade 202 shovels into the soil, the corresponding electrically controlled valve 605 is controlled to open, and high-pressure water enters the liquid flow channel 606 inside the shovel blade 202 through the high-pressure hose 607. The high-pressure water in the liquid flow channel 606 is ejected at high speed through the flushing holes 608 on the inner side of the shovel blade 202, flushing the soil and rocks on the inner side of the shovel blade 202. Furthermore, the water flow formed after the flushing can effectively drive the flushed soil and rocks into the collection bucket 203.

[0061] Example 2

[0062] Please refer to the Figures 1 to 8 This embodiment discloses a method for pipe jacking construction of a municipal pipeline, using the pipe jacking construction device in Example 1, including the following steps:

[0063] S1. Construction preparation:

[0064] S11. Excavate and pour the working well 800 and the receiving well 700 to ensure that the size, verticality, and wall strength meet the standards;

[0065] S12. The components of the pipe jacking construction device are transported to the construction site, assembled and debugged in the working well 800;

[0066] S2. Pipe jacking construction:

[0067] S21. The prefabricated pipe 900 is hoisted into the working well 800, so that the prefabricated pipe 900 abuts between the propulsion mechanism 100 and the jacking mechanism 200, and the portion of the discharge assembly 500 and the flushing assembly 600 connected to the outside passes through the prefabricated pipe 900;

[0068] S22. The propulsion mechanism 100 and the jacking mechanism 200 are activated. The jacking mechanism 200 shovels into the soil. The soil shoveled into the soil by the jacking mechanism 200 is flushed by the flushing assembly 600 and then enters the crushing assembly 400 through the collection bucket 203. The crushing assembly 400 crushes the rocks and clods in the soil to form slurry. The discharge assembly 500 transports the crushed slurry from the crushing assembly 400 to a collection device on the ground.

[0069] S22. When a section of prefabricated pipe 900 is pushed into place, stop pushing and repeat steps S21 to S22;

[0070] S3. Construction completion and acceptance: After the jacking mechanism 200 enters the receiving well, the equipment operation is stopped and all prefabricated pipes 900 are comprehensively inspected.

[0071] This construction method integrates each phase of work closely, from preparation to pipe jacking and final acceptance, creating a clear and logical process. During the pipe jacking process, the propulsion and jacking mechanisms work together, and the flushing assembly, along with the shovel, rapidly breaks up the soil, ensuring efficient jacking. The crushing assembly quickly breaks up rocks in the soil, and the discharge assembly promptly removes slurry, minimizing downtime and shortening the overall construction period.

[0072] Please refer to the Figures 1 to 8 In a specific embodiment of the present application, in step S2, after one section of prefabricated pipe 900 is pushed into place and before another section of prefabricated pipe 900 is installed, a connecting sleeve 901 is installed between the two adjacent sections of prefabricated pipe 900, and the two ends of the connecting sleeve 901 are provided with symmetrical connecting grooves 902 corresponding to the ends of the prefabricated pipe 900.

[0073] During operation, after one section of prefabricated pipe 900 is pushed into place, before installing the next section of prefabricated pipe 900, the connecting sleeve 901 is installed between two adjacent sections of prefabricated pipe 900. The connecting grooves 902 at both ends of the connecting sleeve 901 fit tightly with the ends of the prefabricated pipe 900, playing a role in positioning and connecting, and can effectively improve the stability of the prefabricated pipe 900 during the jacking process.

[0074] Please refer to the Figures 1 to 8 In a specific embodiment of the present application, a grouting hole 903 is provided on the side wall of the connecting sleeve 901 located inside the prefabricated pipe 900, and a grouting channel 904 connected to the grouting hole 903 is provided inside the connecting sleeve 901 along its circumference. The side wall of the connecting sleeve 901 located outside the prefabricated pipe 900 is set as a slope 905, and the connecting sleeve 901 is provided with a number of annularly evenly distributed grouting holes 906 that pass through the slope 905. The grouting holes 906 are connected to the grouting channel 904, and a protective cover 907 is installed on the connecting sleeve 901 located outside the prefabricated pipe 900. The protective cover is set on the slope 905.

[0075] Before construction is completed and accepted, grouting equipment is connected to the grouting hole 903 of the adapter sleeve 901 to inject slurry into the grouting channel 904. Since the grouting channel 904 is connected to the grouting hole 906 and the grouting hole 903, the slurry is ejected through the grouting hole 906 under pressure. The ejected slurry will squeeze through the protective cover 907 and spray onto the outer surface of the prefabricated pipe 900, thereby reinforcing and filling the soil, reducing the gaps in the soil around the pipe, and helping to improve the soil's support for the pipe.

[0076] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A pipe jacking construction device for a municipal pipeline, characterized by: The invention comprises a propulsion mechanism (100) and a jacking mechanism (200), wherein the propulsion mechanism (100) is used to propel the prefabricated pipe (900) and the jacking mechanism (200), and the jacking mechanism (200) is used to break the soil and guide the propulsion of the prefabricated pipe (900); the jacking mechanism (200) comprises a jacking pipe body (201), wherein the jacking pipe body (201) is slidably connected to a plurality of shovel plates (202) slidably connected to each other along its outer periphery, and a driving assembly (300) for driving the shovel plates (202) to slide is installed inside the jacking pipe body (201), and the position of the jacking pipe body (201) near its front end is The collecting bucket (203) is rotatably connected to the driving assembly (300), the collecting bucket (203) is in driving connection with the driving assembly (300), the interior of the jacking tube (201) is provided with a crushing assembly (400) in communication with the collecting bucket (203), the crushing assembly (400) is connected with a discharge assembly (500), and the interior of the jacking tube (201) is provided with a flushing assembly (600) connected with the shovel plate (202); the driving assembly (300) includes a plurality of jacking oil cylinders (301) distributed in a centrally symmetrical manner, the jacking oil cylinders (301) are fixedly installed in the interior of the jacking tube (201), and the jacking oil cylinders (301) are connected to the jacking tube (201). A motor bracket (302) is fixedly mounted on the outer side of the telescopic end of (301), and a plurality of turntable motors (303) are fixedly mounted on the motor bracket (302) and are evenly distributed in an annular pattern. The telescopic end of the jacking oil cylinder (301) is slidably connected to a jacking disc (304), and a driving block (305) is fixedly mounted on the jacking disc (304) corresponding to the shovel plate (202). A driving seat (306) is fixedly mounted on the shovel plate (202) corresponding to the driving block (305). A toothed disc (307) is fixedly mounted on the jacking disc (304), and a driving gear (307) is fixedly mounted on the output shaft of the turntable motor (303). 08), the driving gear (308) is meshed with the toothed disc (307); the jacking disc (304) is mounted on the collecting bucket (203), and a plurality of annularly evenly distributed guide strips (204) are fixedly connected to the inner side surface of the collecting bucket (203) near the front end of the jacking tube body (201); the outer surface of the collecting bucket (203) is provided with annularly evenly distributed spline grooves (205) corresponding to the jacking disc (304); the inner side surface of the jacking disc (304) is provided with spline teeth (309) corresponding to the spline grooves (205); the spline teeth (309) are slidably meshed with the spline grooves (205) for transmission.

2. A pipe jacking construction device for a municipal pipeline according to claim 1, characterized in that: The propulsion mechanism (100) comprises a rear backrest (101) fixedly mounted inside the working well (800), a propulsion oil cylinder (102) fixedly mounted on the rear backrest (101), a top iron (103) connected to the telescopic end of the propulsion oil cylinder (102), and an avoidance hole (104) opened in the middle of the top iron (103).

3. The pipe jacking construction device for a municipal pipeline according to claim 1, characterized in that: A conveying piece (206) is fixedly connected to the inner side wall of the collecting hopper (203) away from the front end of the jacking tube body (201), and the conveying piece (206) is arranged in a spiral shape.

4. The pipe jacking construction device for a municipal pipeline according to claim 1, characterized in that: The crushing assembly (400) includes a crushing box (401) fixedly connected to the inside of the jacking tube (201), one end of the crushing box (401) is sealed and rotatably connected to the collecting bucket (203), the other end of the crushing box (401) is fixedly and sealedly connected to a cover plate (402), the cover plate (402) is sealed and connected to the discharge assembly (500), the inside of the crushing box (401) is rotatably connected to a first mounting shaft (403) and a second mounting shaft (404) that pass through the side wall thereof, the first mounting shaft (403) and the second mounting shaft (404) being connected to the inside of the crushing box (401). Crushing rollers (405) are fixedly mounted on the two mounting shafts (404) located inside the crushing box (401); mutually meshing transmission gears (406) are fixedly mounted on one end of the first mounting shaft (403) and the second mounting shaft (404) located outside the crushing box (401); a crushing motor (407) is transmission-connected to one end of the first mounting shaft (403) located outside the crushing box (401) and away from the transmission gear (406); and the crushing motor (407) is fixedly mounted on the crushing box (401).

5. The pipe jacking construction device for a municipal pipeline according to claim 1, characterized in that: The discharge assembly (500) comprises a booster pump (501), the booster pump (501) being fixedly connected to the output end of the crushing assembly (400), the output end of the booster pump (501) being fixedly connected to a plurality of output pipes (502) connected end to end in sequence, and the outermost output pipe (502) is connected to an external sludge collection device.

6. The pipe jacking construction device for a municipal pipeline according to claim 1, characterized in that: The flushing assembly (600) comprises a water pump (601), the input end of the water pump (601) is fixedly connected to a plurality of input pipes (602) connected end to end in sequence, the output end of the water pump (601) is fixedly connected to a high-pressure water pipe (603), the high-pressure water pipe (603) is fixedly connected to a water distribution pipe (604), and the water distribution pipe (604) is connected to an electric control valve (605) corresponding to each shovel plate (202), a liquid flow channel (606) is provided inside the shovel plate (202), and the liquid flow channel (606) is sealedly connected to the output end of the electric control valve (605) via a high-pressure hose (607), and the inner side surface of the shovel plate (202) is provided with a plurality of groups of evenly distributed flushing holes (608) along its sliding direction, and the flushing holes (608) are sealedly connected to the liquid flow channel (606).

7. A pipe jacking construction method for a municipal pipeline, characterized in that: The pipe jacking construction device according to any one of claims 1 to 6 comprises the following steps: S1. Construction preparation: S11. Excavate and cast the working well (800) and the receiving well (700) to ensure that the size, verticality and well wall strength meet the standards; S12 transports the various components of the pipe jacking construction device to the construction site, assembles and debugs the equipment in the working well (800); S2. Pipe jacking construction: S21. The prefabricated pipe 900 is hoisted into the working pit (800), so that the prefabricated pipe (900) abuts between the propulsion mechanism (100) and the jacking mechanism (200), and the portions of the discharge assembly (500) and the flushing assembly (600) connected to the outside are passed through the prefabricated pipe (900); S22. The propulsion mechanism (100) and the jacking mechanism (200) are started, the jacking mechanism (200) shovels into the soil, the soil shoveled in by the jacking mechanism (200) is flushed by the flushing assembly (600) and enters the crushing assembly (400) through the collecting bucket (203), the crushing assembly (400) crushes the stones and clods in the soil and forms mud, and the discharge assembly (500) transports the crushed mud in the crushing assembly (400) to a collection device on the ground; S22. When a section of the prefabricated pipe (900) is pushed into place, the advancement is stopped and steps S21 to S22 are repeated; S3. Construction completion and acceptance: After the jacking mechanism (200) enters the receiving well, the equipment operation is stopped and all the prefabricated pipes (900) are comprehensively inspected.

8. A pipe jacking construction method for a municipal pipeline according to claim 7, characterized in that: In step S2, after one section of the prefabricated pipe (900) is pushed into place and before another section of the prefabricated pipe (900) is installed, a connecting sleeve (901) is installed between two adjacent sections of the prefabricated pipe (900).

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