Supporting device for laying HDPE pipe in collapsible loess area

Abstract

This application relates to the field of pipeline laying technology, and in particular to a support device for laying HDPE pipelines in collapsible loess areas. The device includes a concrete foundation, a trench at the top of which is fixedly installed. Support mechanisms are linearly arranged at equal intervals inside the trench, and a water pipe body is installed inside each support mechanism. A drainage mechanism is located at the bottom of the trench, and a drainage and water storage mechanism is located on one side of the concrete foundation. During application, this technical solution, through the coordination of the drainage mechanism, the drainage and water storage mechanism, the support mechanism, and the concrete foundation, allows seepage water to be quickly drained and subsequently treated. Simultaneously, it provides continuous and uniform load-bearing capacity for the pipeline body, reducing the adverse effects of soil changes on pipeline laying. This allows the pipeline body to maintain a stable laying state over a long period, reducing the workload of later maintenance and adapting to the pipeline laying needs in collapsible loess areas.

Description

Technical Field

[0001] This application relates to the field of pipeline laying technology, and in particular to a support device for laying HDPE pipelines in collapsible loess areas. Background Technology

[0002] Collapsible loess is widely distributed in my country. The soil in this region has the structural characteristics of large pores and well-developed vertical joints. It is prone to significant additional settlement when exposed to water, which has a great impact on the stability of engineering structures. With the continuous advancement of infrastructure construction, HDPE pipes have been widely used in water supply and drainage, municipal pipe networks and energy supporting pipeline projects in collapsible loess areas due to their advantages such as corrosion resistance, convenient construction and good sealing performance. The quality of pipe laying directly affects the smoothness of regional drainage and the safety of surrounding buildings and structures. How to effectively control the infiltration of groundwater and surface water and avoid foundation collapse and deformation is the core technical challenge of pipe laying construction in this type of area. Adopting reasonable support and drainage structures is of great engineering significance for ensuring the long-term stable operation of pipelines and reducing the risk of foundation instability. Chinese Patent CN121110794A discloses a construction technology for preventing seepage in rainwater pipelines of ultra-high voltage converter stations in collapsible loess areas. This technology relates to the field of rainwater pipeline construction and includes a pipeline trench. The trench is constructed on a collapsible loess foundation near the ultra-high voltage converter station. A lime-soil cushion layer is laid on the bottom side of the trench, and a concrete strip foundation layer is poured on top of the lime-soil cushion layer. This technology uses dynamic compaction to reinforce the collapsible loess foundation in the pipeline laying area, eliminating the collapsibility of the foundation soil. The lime-soil cushion layer is laid in the trench and compacted in layers to form a waterproof barrier layer, thereby improving the seepage prevention effect, enhancing the operational safety of the ultra-high voltage converter station, and solving the problem that traditional construction methods often fail to fully consider the collapsible characteristics of loess and lack sufficient seepage prevention measures, easily leading to foundation subsidence. However, the above-mentioned technical solutions still have obvious defects in practical applications and are difficult to adapt to long-term use requirements. In areas with collapsible loess, the soil has high permeability, and water can easily seep into the soil pores and accumulate in large quantities at the bottom of the pipe. The existing structure lacks an efficient drainage design and cannot quickly remove the water that has seeped into the foundation. Long-term water immersion will continuously weaken the strength of the foundation soil, aggravate the loess collapsing deformation, and lead to collapse, settlement and local damage at the bottom of the trench. After the foundation is unstable, the pipe loses uniform support and is very prone to bending, displacement or even breakage failure, affecting the overall structural safety and drainage function of the pipe, while increasing the difficulty of later operation and maintenance and repair costs. Summary of the Invention

[0003] In order to improve the support effect during the application of existing technologies, this application provides a support device for laying HDPE pipes in collapsible loess areas.

[0004] This application provides a support device for laying HDPE pipes in collapsible loess areas, which adopts the following technical solution: it includes a concrete support foundation, a trench is opened on the top of the concrete support foundation, a support mechanism is fixedly installed in the trench with equal spacing in a linear arrangement, a water pipe body is installed on the inner side of the support mechanism, a drainage mechanism is provided at the bottom of the trench, and a drainage and water storage mechanism is provided on one side of the concrete support foundation, and the drainage and water storage mechanism and the drainage mechanism are connected. The drainage mechanism includes a drainage channel and a drainage pipe. The drainage channel is located at the bottom of the trench, and the drainage pipe is fixedly installed at both ends on one side of the concrete-supported foundation. The input end of the drainage pipe is connected to the drainage channel at the bottom of the trench, and the input end of the drainage and water storage mechanism is connected to the output end of the drainage pipe.

[0005] Optionally, the concrete-supported foundation has installation holes arranged linearly at equal intervals on both sides, and a support anchor rod is inserted into the installation hole.

[0006] Optionally, a concrete support for drainage is fixedly installed on the inner side of the drainage channel. The surface of the concrete support for drainage is provided with a plurality of drainage holes at equal intervals. The top of the concrete support for drainage is used to support the water pipe body.

[0007] Optionally, the support mechanism includes a support base and a foundation cover plate, with the water pipe body placed on top of the support base, the foundation cover plate placed on top of the concrete support foundation, and the foundation cover plate covering the top of the trench.

[0008] Optionally, the bottom sides of the foundation cover plate are fixedly installed with support blocks arranged linearly at equal intervals, and the bottom of the support blocks fits into the inner wall of the trench.

[0009] Optionally, an arc-shaped fixing top seat is installed on the top of the support base by screws, and the inner arc surface of the arc-shaped fixing top seat fits against the outer wall of the pipe body.

[0010] Optionally, the drainage and water storage mechanism includes a drainage and water storage well, which is located on one side of a concrete-supported foundation. A connecting pipe seat is fixedly installed on the upper outer side of the drainage and water storage well, and the outer end of the connecting pipe seat is connected to the drainage pipe. A water source suction drive module is covered on the top of the drainage and water storage well, and a suction module is movably installed on the bottom of the water source suction drive module. The bottom input end of the suction module rotates at the bottom of the drainage and water storage well.

[0011] Optionally, the water source suction drive module includes a well cover and a fixed side seat. The fixed side seat is fixedly installed on the upper ends of both sides of the drainage water storage well. A fixing plate is fixedly installed on both sides of the bottom of the well cover. The fixing plate is inserted into the interior of the fixed side seat. A mounting screw is threaded to the lower outer end of the fixing plate. The mounting screw is configured as a screw with a handle and has a hexagonal wrench groove at its outer end. A drive assembly is provided on the top of the well cover. The bottom of the drive assembly is connected to the top of the suction module.

[0012] Optionally, the drive assembly includes a mounting frame and a side fixing frame. The mounting frame is fixedly installed on the top of the manhole cover, and the side fixing frame is fixedly installed on one side of the top of the manhole cover. A drive motor is fixedly installed on the top of the side fixing frame. A gear is rotatably connected inside the side fixing frame. The output end of the drive motor is connected to the top of the gear through a coupling. A rotary joint is rotatably connected to the middle of the mounting frame. An external water pump connecting pipe is fixedly installed on the top output end of the rotary joint, and a connecting flange is installed on its outer end. The bottom rotating end of the rotary joint rotates in the middle of the manhole cover. A gear ring is fixedly installed on the outer surface of the rotating end of the rotary joint. The gear and the gear ring are meshed together.

[0013] Optionally, the suction module includes a suction main pipe, which is rotatably connected to the bottom center of the manhole cover. An agitator is fixedly installed at the bottom of the suction main pipe, and a sludge suction head is fixedly installed at the bottom of the agitator. Side suction pipes are fixedly installed in a ring at equal intervals on the outer surface of the suction main pipe above the agitator. Suction auxiliary pipes are fixedly installed at equal intervals at the bottom of the side suction pipes. Side suction heads are fixedly installed at the bottom of the suction auxiliary pipes. A solenoid valve is provided on the suction main pipe above the agitator.

[0014] In summary, this application includes the following beneficial technical effects: 1. During the application of this technical solution, by setting up a drainage mechanism and a drainage and water storage mechanism, the seepage water that has seeped into the trench can be quickly collected during use, and then the seepage water is transported in an orderly manner to the external water storage structure, avoiding long-term deposition of seepage water at the bottom of the pipe. Through the continuous drainage path design of the drainage mechanism, the seepage water can smoothly leave the pipe laying area, reducing the continuous soaking of the soil below by the seepage water. Through the sedimentation and graded suction design of the drainage and water storage mechanism, the collected water can complete solid-liquid separation, and then the clean water can be extracted and the sludge can be cleaned separately, avoiding sludge accumulation and blockage of the drainage path, maintaining the continuous unobstructed drainage path, reducing the structural changes of the soil due to long-term soaking, and providing a stable surrounding environment for pipe laying. 2. During the application of this technical solution, by setting up a concrete-supported foundation and anchor rods, the overall support structure can be connected to the deep stable soil layer during use, thereby limiting the vertical and horizontal displacement of the support structure and preventing the overall displacement of the support structure due to changes in the upper soil. The evenly spaced arrangement of the support mechanism allows the pipeline body to obtain uniform vertical load, and with the auxiliary load of the guide concrete support, the stress on the pipeline body can be evenly distributed, avoiding excessive local stress on the pipeline body. The detachable cover structure design allows the internal structure of the trench to be quickly exposed, thereby reducing the difficulty of later inspection and maintenance operations, reducing the disturbance of the surrounding soil during maintenance operations, and maintaining the stability of the soil structure in the pipeline laying area. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application; Figure 2 This is a bottom-view structural diagram of an embodiment of this application; Figure 3 This is a top view of the split structure in an embodiment of this application; Figure 4 This is a schematic diagram of the split-state top view structure in an embodiment of this application; Figure 5 This is a schematic diagram of the drainage and water storage mechanism in the embodiments of this application; Figure 6 This is a schematic diagram of the internal structure of the drainage and water storage mechanism in the embodiments of this application; Figure 7 This is a schematic diagram of the drive module and suction module structure in the embodiments of this application; Figure 8 This is an embodiment of the present application. Figure 3 A magnified structural diagram at point A; Figure 9 This is an embodiment of the present application. Figure 6 A magnified structural diagram at point B; Figure 10 This is an embodiment of the present application. Figure 7 A magnified structural diagram at point C.

[0016] Reference numerals: 1. Concrete-supported foundation; 2. Trench; 3. Support mechanism; 31. Support base; 32. Foundation cover plate; 33. Support block; 34. Arc-shaped fixed top seat; 4. Water pipe body; 5. Drainage mechanism; 51. Drainage channel; 52. Drainage pipe; 53. Drainage concrete support body; 54. Drainage hole; 55. Mounting hole; 56. Support anchor; 6. Drainage water storage mechanism; 61. Drainage water storage well; 62. Connecting pipe seat; 63. Water source suction drive module; 631. Well cover; 6 32. Fixed side seat; 633. Fixed plate; 634. Mounting screw; 635. Drive assembly; 6351. Erection frame; 6352. Side fixing frame; 6353. Drive motor; 6354. Gear; 6355. Rotary joint; 6356. External water pump connecting pipe; 6357. Gear ring; 64. Suction module; 641. Main suction pipe; 642. Agitator auger; 643. Sludge suction head; 644. Side suction pipe; 645. Suction auxiliary pipe; 646. Side suction head; 647. Solenoid valve. Detailed Implementation

[0017] The following is in conjunction with the appendix Figures 1-10 This application will be described in further detail.

[0018] This application discloses a support device for laying HDPE pipes in collapsible loess areas. For example... Figures 1-10 As shown, it includes a concrete-supported foundation 1, a trench 2 is provided on the top of the concrete-supported foundation 1, a support mechanism 3 is fixedly installed in the trench 2 with equal spacing in a linear arrangement, a water pipe body 4 is installed on the inner side of the support mechanism 3, a drainage mechanism 5 is provided at the bottom of the trench 2, and a drainage and water storage mechanism 6 is provided on one side of the concrete-supported foundation 1. The drainage and water storage mechanism 6 and the drainage mechanism 5 are connected. The drainage mechanism 5 includes a drainage channel 51 and a drainage pipe 52. The drainage channel 51 is located at the bottom of the trench 2. The drainage pipe 52 is fixedly installed at both ends of one side of the concrete-supported foundation 1. The input end of the drainage pipe 52 is connected to the drainage channel 51 at the bottom of the trench 2. The input end of the drainage and water storage mechanism 6 is connected to the output end of the drainage pipe 52. By setting up the concrete-supported foundation 1, a stable load-bearing foundation is provided for the overall structure during use. The trench 2 provides installation space for the support mechanism 3 and the drainage mechanism 5. The support mechanism 3 is arranged linearly at equal intervals, so that the water pipe body 4 can be uniformly distributed. The supporting force is achieved by setting up a drainage mechanism 5, which allows the water inside the trench 2 to be quickly collected. The drainage channel 51 receives the infiltrated water, and the drainage pipe 52 transports the water inside the drainage channel 51 to the outside. By setting up a drainage and water storage mechanism 6, the water discharged from the drainage pipe 52 can be collected in a concentrated manner, thereby preventing the water from continuously accumulating at the bottom of the water pipe body 4 and reducing the soaking of the lower soil by the water. Through the cooperation of various structural parts, the accumulated water can be discharged in an orderly manner, reducing the possibility of soil settlement and deformation, keeping the water pipe body 4 in a stable supporting environment, and extending the service life of the water pipe body 4.

[0019] Please refer to Figures 5-7 and Figures 9-10The water source suction drive module 63 includes a well cover 631 and a fixed side seat 632. The fixed side seat 632 is fixedly installed on the upper ends of both sides of the drainage water storage well 61. A fixing plate 633 is fixedly installed on both sides of the bottom of the well cover 631. The fixing plate 633 is inserted into the fixed side seat 632. A mounting screw 634 is threaded to the lower outer end of the fixing plate 633. The mounting screw 634 is a screw with a handle, and its outer end has a hexagonal wrench groove. A drive assembly 635 is provided on the top of the well cover 631. The bottom of the drive assembly 635 is connected to the top of the suction module 64. The drive assembly 635 includes a mounting frame 6351 and a side fixing frame 6352. The mounting frame 6351 is fixedly installed on the top of the well cover 631, and the side fixing frame 6352 is fixedly installed on the bottom of the well cover 631. A drive motor 6353 is fixedly mounted on the top of a side fixing bracket 6352, which is fixedly mounted on the top of the bracket. A gear 6354 is rotatably connected inside the side fixing bracket 6352. The output end of the drive motor 6353 is connected to the top of the gear 6354 via a coupling. A rotary joint 6355 is rotatably connected to the middle of the bracket 6351. An external water pump connecting pipe 6356 is fixedly mounted on the top output end of the rotary joint 6355, and a connecting flange is installed on its outer end. The bottom rotating end of the rotary joint 6355 rotates around the middle of the manhole cover 631. A gear ring 6357 is fixedly mounted on the outer surface of the rotating end of the rotary joint 6355. The gear 6354 and the gear ring 6357 are meshed together. The suction module 64 includes a suction main pipe 641. The main suction pipe 641 is rotatably connected to the bottom center of the manhole cover 631. An agitator 642 is fixedly installed at the bottom of the main suction pipe 641, and a sludge suction head 643 is fixedly installed at the bottom of the agitator 642. Side suction pipes 644 are fixedly installed in a ring at equal intervals above the agitator 642 on the outer surface of the main suction pipe 641. Suction auxiliary pipes 645 are fixedly installed at equal intervals at the bottom of the side suction pipes 644, and side suction heads 646 are fixedly installed at the bottom of the suction auxiliary pipes 645. A solenoid valve 647 is installed on the main suction pipe 641 above the agitator 642. During the application of this device, by setting the manhole cover 631 fixing plate 633 to fix the side seat 632 and the mounting screw 634, the manhole cover 631 can be quickly disassembled and assembled, thus facilitating subsequent installations. The internal suction module 64 is inspected and repaired. By setting up the mounting frame 6351, side fixing frame 6352, and drive motor 6353, the gear 6354 can rotate stably, thereby driving the gear ring 6357 and rotary joint 6355 to operate synchronously. By setting up the external water pump connecting pipe 6356 and connecting flange, external water pumping equipment can be easily connected, thus smoothly completing water extraction. By setting up the suction main pipe 641, agitator auger 642, and sludge suction head 643, the deposited sludge can be agitated and extracted, thus preventing sludge accumulation and blockage of the channel. By setting up the side suction pipe 644, suction auxiliary pipe 645, and side suction head 646, the upper water can be extracted separately, thus achieving separate treatment of clean water and sludge. A solenoid valve 647 is also included.This allows for flexible switching of the suction path, thus meeting different extraction needs and ensuring that both water and sludge within the drainage and storage well 61 are effectively treated.

[0020] Please refer to Figures 1-6 The drainage and storage mechanism 6 includes a drainage and storage well 61, which is located on one side of the concrete-supported foundation 1. A connecting pipe seat 62 is fixedly installed on the upper outer side of the drainage and storage well 61, and the outer end of the connecting pipe seat 62 is connected to the drainage pipe 52. A water source suction drive module 63 is covered on the top of the drainage and storage well 61, and a suction module 64 is movably installed on the bottom of the water source suction drive module 63. The bottom input end of the suction module 64 rotates inside the bottom of the drainage and storage well 61. By setting up the drainage and storage well 61 and the connecting pipe seat 62, the water transported by the drainage pipe 52 can be smoothly guided into the drainage and storage well 61, thereby realizing the centralized collection of water. To prevent the indiscriminate discharge of water from soaking the surrounding soil, a water source suction drive module 63 is installed. This allows the suction module 64 to be stably supported and powered, thereby driving the suction module 64 to rotate at the bottom of the drainage storage well 61. During the rotation, the suction module 64 can fully contact the water in the storage well, quickly extracting the water and deposited impurities. This reduces the accumulation of water caused by long-term stagnation in the storage well, while preventing water from seeping back into the surrounding soil and reducing soil deformation caused by water accumulation. This ensures that the drainage system remains unobstructed and that the water discharged by the drainage mechanism 5 is treated in a timely manner, guaranteeing the stability of the soil in the pipeline laying area.

[0021] Please refer to Figures 1-4 and Figure 8The concrete-supported foundation 1 has installation holes 55 arranged linearly at equal intervals on both sides. Supporting anchors 56 are inserted into the installation holes 55. A drainage concrete support 53 is fixedly installed inside the drainage channel 51. Several drainage holes 54 are evenly spaced on the surface of the drainage concrete support 53. The top of the drainage concrete support 53 is used to support the water pipe body 4. The support mechanism 3 includes a support base 31 and a foundation cover plate 32. The water pipe body 4 is placed on top of the support base 31. The foundation cover plate 32 is placed on top of the concrete-supported foundation 1 and covers the top of the trench 2. Support blocks 33 are fixedly installed linearly at equal intervals on both sides of the bottom of the foundation cover plate 32. The bottom of the support blocks 33 is in contact with the inner wall of the trench 2. An arc-shaped fixing top seat 34 is installed on the top of the support base 31 by screws. The inner arc surface of the arc-shaped fixing top seat 34 is in contact with the outer wall of the pipe body. During the application of the device, by setting the installation hole 55 and the support anchor 56, the concrete support foundation 1 can be tightly combined with the deep soil, thereby reducing the possibility of displacement of the overall structure. By setting the drainage concrete support 53 and the drainage hole 54, the water seeping into the trench 2 can be smoothly drained downwards, while providing auxiliary support for the water pipe body 4, making the force distribution of the water pipe body 4 more balanced. By setting the support base 31 and the arc-shaped fixed top seat 34, the water pipe body 4 can be stably limited, thereby reducing the shaking or displacement of the water pipe body 4. By setting the foundation cover plate 32 and the support block 33, the top of the trench 2 can be completely sealed to prevent external debris from falling into the trench 2. The support block 33 fits against the inner wall of the trench 2, making the foundation cover plate 32 more stable, thereby reducing the interference of external factors on the internal structure, and keeping the water pipe body 4 in a neat state during the laying and use process.

[0022] The implementation principle of the HDPE pipeline laying support device in collapsible loess areas according to this application embodiment is as follows: During application, the concrete support foundation 1 provides a stable bearing surface for the overall structure. The support anchor 56 passes through the installation holes 55 on both sides of the concrete support foundation 1 and connects with the deep stable soil layer, fixing the concrete support foundation 1 and the underlying soil layer as one, effectively limiting the vertical and horizontal displacement of the concrete support foundation 1. The support mechanism 3 is arranged at equal intervals along the laying direction of the water pipe body 4. The support base 31 bears the vertical load transmitted by the water pipe body 4. The arc-shaped fixed top seat 34 is connected to the support base 31 by screws, fitting against the inner wall of the water pipe body 4, forming radial and axial limiting constraints on the water pipe body 4, preventing the water pipe body 4 from being damaged during use. If radial deformation or axial movement occurs, the guide concrete support 53 is set at the bottom of the trench 2, below the water pipe body 4, to provide additional support to the bottom of the water pipe body 4 and distribute the concentrated load of the water pipe body 4. The drainage holes 54 on its surface provide a seepage channel for water to seep into the trench 2, allowing the water to flow smoothly downwards. The foundation cover plate 32 covers the top of the trench 2, enclosing the water pipe body 4, support mechanism 3 and guide structure inside the trench 2, preventing external debris from entering the trench 2. The support block 33 at the bottom of the foundation cover plate 32 is attached to the inner wall of the concrete support foundation 1, providing uniform vertical support for the foundation cover plate 32 and preventing the foundation cover plate 32 from deforming due to external pressure. The drainage channel 51 is opened At the bottom of the trench 2, seepage water flowing down from the drainage holes 54 of the concrete support 53 is collected. The drainage pipe 52 is fixedly installed at both ends on one side of the concrete support foundation 1. Its input end is connected to the drainage channel 51, and its output end is connected to the drainage water storage mechanism 6. The seepage water in the drainage channel 51 can be smoothly transported to the outside through the drainage pipe 52. The drainage water storage well 61 is set on one side of the concrete support foundation 1. The connecting pipe seat 62 connects the drainage pipe 52 to the drainage water storage well 61, so that the seepage water in the drainage pipe 52 can flow into the drainage water storage well 61. The well cover 631 covers the top of the drainage water storage well 61. The fixing plate 633 is inserted into the fixing side seat 632. The fixing plate 633 is fixed to the fixing side seat 632 by the installation screw 634. The fixed connection of the side seat 632 allows the manhole cover 631 to stably cover the drainage and storage well 61. The mounting frame 6351 and the side fixing frame 6352 are fixedly installed on the top of the manhole cover 631, providing an installation base for the drive assembly 635. The drive motor 6353 is installed on the top of the side fixing frame 6352. The gear 6354 is connected to the output end of the drive motor 6353. The rotary joint 6355 is rotatably connected to the middle of the mounting frame 6351. The gear ring 6357 is fixedly installed on the outer surface of the rotating end of the rotary joint 6355 and meshes with the gear 6354, enabling the drive motor 6353 to drive the rotary joint 6355 to rotate. The suction main pipe 641 is rotatably connected to the middle of the bottom of the manhole cover 631 and is connected to the bottom rotating end of the rotary joint 6355.Agitator 642 is fixedly installed at the bottom of suction main pipe 641, sludge suction head 643 is fixedly installed at the bottom end of agitator 642, side suction pipes 644 are fixedly installed in a ring on the outer surface of suction main pipe 641, above agitator 642, suction auxiliary pipe 645 is fixedly installed at the bottom of side suction pipe 644, side suction head 646 is fixedly installed at the bottom end of suction auxiliary pipe 645, solenoid valve 647 is located on suction main pipe 641, above agitator 642, and external water pump connecting pipe 6356 at the top of rotary joint 6355 is connected to external equipment via connecting flange. When surface water or groundwater in the collapsible loess area seeps into the trench 2 through the soil pores, this water first comes into contact with the drainage concrete support 53, and then seeps downward through the drainage holes 54 on the surface of the drainage concrete support 53, flowing into the drainage channel 51 at the bottom of the trench 2. The drainage channel 51 collects the seepage water. Due to the reasonable flow slope of the drainage channel 51, the collected seepage water flows along the drainage channel 51 to both ends, and finally enters the drainage pipe 52. The drainage pipe 52 stably transports the seepage water to the drainage storage well 61, completing the transfer process of seepage water from the inside of the trench 2 to the drainage storage well 61. After the seepage water enters the drainage storage well 61, it settles inside the drainage storage well 61. The sludge and impurities in the water will gradually settle to the bottom of the drainage storage well 61 due to gravity, while the water... The water is kept in the upper middle part of the drainage storage well 61, forming a layered state. When it is necessary to take the upper layer of clean water in the drainage storage well 61, the external screw pump is connected to the external water pump connecting pipe 6356 at the top of the rotary joint 6355 through the connecting flange. After the external screw pump is started, the negative pressure generated by the screw pump will be transmitted to the side suction pipe 644 through the suction main pipe 641, and then transmitted to the side suction head 646 through the side suction pipe 644. The side suction head 646 will extract the upper layer of clean water in the drainage storage well 61. During this process, the solenoid valve 647 is kept closed, the drive motor 6353 is not started, the agitator 642 is in a stationary state, the sludge at the bottom of the drainage storage well 61 is kept in a sedimentation state, and the installation position of the side suction head 646 is higher than the top surface of the sludge sedimentation layer, so as not to disturb the bottom sludge, ensuring that the extracted water is clean water without sludge. With prolonged use of this device, sludge will continuously accumulate at the bottom of the drainage storage well 61, gradually reducing the water storage space. At this point, it is necessary to clean the sludge inside the drainage storage well 61. The drive motor 6353 is started, and it drives the gear 6354 to rotate via a coupling. The gear 6354 meshes with the gear ring 6357 on the rotary joint 6355, thereby rotating the rotating end of the rotary joint 6355. The rotating end of the rotary joint 6355 will then drive the bottom suction main pipe 641 to rotate synchronously. During the rotation of the suction main pipe 641, the bottom agitator 642 will also rotate. When the agitator 642 rotates, it will turn the sludge settled at the bottom of the drainage storage well 61 upwards. The sludge is rolled to mix with the surrounding water to form a slurry. At this time, the solenoid valve 647 is opened, and the negative pressure generated by the external screw pump is simultaneously transmitted to the sludge suction head 643 and the side suction head 646. The side suction head 646 sucks up the slurry suspended in the water, and the sludge suction head 643 directly sucks up the sludge at the bottom of the drainage storage well 61, thereby completing the cleaning of the sludge inside the drainage storage well 61. When maintenance of the suction module 64 is required, the mounting screw 634 is rotated to release the fixed connection between the fixing plate 633 and the fixing side seat 632. The well cover 631 is lifted upwards, and the suction module 64 connected to the bottom of the well cover 631 can be taken out of the drainage storage well 61 as a whole, which is convenient for the suction module 64 to be inspected or replaced. This device, through the cooperation of the concrete support structure 53 and the drainage channel 51, can quickly collect and drain the seepage water in the trench 2, preventing the seepage water from accumulating at the bottom of the water pipe body 4 for a long time. This reduces the soaking of the collapsible loess by the seepage water and lowers the possibility of loess collapse and deformation. Considering the high permeability and easy instability of collapsible loess when exposed to water, the support structure design of this device is tailored to the geological requirements of the area. The combination of the concrete support foundation 1 and the support anchor 56 fixes the entire device to the deep stable soil layer, avoiding the upper easily collapsible loess layer. This prevents the device from shifting or sinking when the loess collapses, thus protecting the water pipe body. 4 provides a stable installation support. The support mechanisms 3 are evenly arranged below the water pipe body 4, providing continuous support for the water pipe body 4. With the auxiliary support of the drainage concrete support body 53, the stress on the water pipe body 4 is more even, preventing the water pipe body 4 from bending or breaking due to excessive local stress. This solves the problem of support failure of pipelines in collapsible loess areas due to foundation instability. The connection between the drainage channel 51 and the drainage pipe 52 realizes the orderly drainage of seepage water in the trench 2, allowing the seepage water to leave the trench 2 area smoothly, avoiding the formation of a long-term soaking environment at the bottom of the pipe, further reducing the causes of loess collapse, and indirectly protecting the soil. To ensure the stability of the supporting structure, the drainage storage well 61 collects the seepage water from the drainage system. Through settling, water and sludge are separated, facilitating the subsequent extraction and utilization of clean water and the centralized cleaning of sludge. This prevents sludge accumulation from clogging the drainage channel, ensuring the continuous effectiveness of the drainage function and maintaining the long-term stability of the supporting structure. The design of the suction module 64 allows the device to extract either upper clean water or bottom sludge as needed. When extracting clean water, the bottom sludge is not disturbed; when cleaning sludge, it thoroughly agitates and extracts the sludge, improving the efficiency of water treatment within the drainage storage well 61. The detachable well cover 631 and foundation cover plate 32... This device allows for quick opening during later maintenance without dismantling the overall structure, reducing the difficulty of maintenance. During use, the device enables continuous operation of drainage, collection, clean water extraction, and sludge removal of seepage water, preventing seepage water from stagnating in the pipeline area and reducing foundation deformation and pipeline damage caused by water accumulation. It is specifically designed for pipeline laying in collapsible loess areas, and its support structure can effectively resist the adverse effects of loess subsidence, ensuring the long-term stable laying and use of the water pipe body. At the same time, it solves the core problems of unstable support, easy collapse, and poor drainage in pipeline laying in this area.

[0023] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A support device for laying HDPE pipes in collapsible loess areas, characterized in that; The concrete foundation (1) includes a concrete support foundation (1), a trench (2) is provided on the top of the concrete support foundation (1), a support mechanism (3) is fixedly installed in the trench (2) with equal spacing in a linear arrangement, a water pipe body (4) is installed on the inner side of the support mechanism (3), a drainage mechanism (5) is provided at the bottom of the trench (2), a drainage and water storage mechanism (6) is provided on one side of the concrete support foundation (1), and the drainage and water storage mechanism (6) and the drainage mechanism (5) are connected. The drainage mechanism (5) includes a drainage channel (51) and a drainage pipe (52). The drainage channel (51) is located at the bottom of the trench (2). The drainage pipe (52) is fixedly installed at both ends of one side of the concrete-supported foundation (1). The input end of the drainage pipe (52) is connected to the drainage channel (51) at the bottom of the trench (2). The input end of the drainage and water storage mechanism (6) is connected to the output end of the drainage pipe (52).

2. The HDPE pipeline laying support device in collapsible loess areas according to claim 1, characterized in that: The concrete-supported foundation (1) has installation holes (55) arranged linearly at equal intervals on both sides, and the installation holes (55) are fitted with anchor rods (56).

3. The HDPE pipeline laying support device in collapsible loess areas according to claim 2, characterized in that: The inner side of the drainage channel (51) is fixedly installed with a drainage concrete support (53). The surface of the drainage concrete support (53) is provided with a number of drainage holes (54) at equal intervals. The top of the drainage concrete support (53) is used to support the water pipe body (4).

4. The HDPE pipeline laying support device in collapsible loess areas according to claim 3, characterized in that: The support mechanism (3) includes a support base (31) and a foundation cover plate (32). The water pipe body (4) is placed on top of the support base (31), the foundation cover plate (32) is placed on top of the concrete support foundation (1), and the foundation cover plate (32) covers the top of the trench (2).

5. The HDPE pipeline laying support device in collapsible loess areas according to claim 4, characterized in that: The bottom sides of the foundation cover plate (32) are fixedly installed with support blocks (33) arranged linearly at equal intervals, and the bottom of the support blocks (33) fits into the inner wall of the trench (2).

6. The HDPE pipeline laying support device in collapsible loess areas according to claim 5, characterized in that: The top of the support base (31) is fitted with an arc-shaped fixing top seat (34) by screws, and the inner arc surface of the arc-shaped fixing top seat (34) is in contact with the outer wall of the pipe body.

7. The HDPE pipeline laying support device in collapsible loess areas according to claim 6, characterized in that: The drainage and water storage mechanism (6) includes a drainage and water storage well (61), which is located on one side of the concrete-supported foundation (1). A connecting pipe seat (62) is fixedly installed on the upper outer side of the drainage and water storage well (61). The outer end of the connecting pipe seat (62) is connected to the drainage pipe (52). A water source suction drive module (63) is covered on the top of the drainage and water storage well (61). A suction module (64) is movably installed at the bottom of the water source suction drive module (63). The bottom input end of the suction module (64) rotates inside the bottom of the drainage and water storage well (61).

8. The HDPE pipe laying support device in collapsible loess areas according to claim 7, characterized in that: The water source suction drive module (63) includes a well cover (631) and a fixed side seat (632). The fixed side seat (632) is fixedly installed on the upper ends of both sides of the drainage water storage well (61). The bottom sides of the well cover (631) are fixedly installed with fixing plates (633). The fixing plates (633) are inserted into the fixed side seat (632). The lower outer end of the fixing plate (633) is threaded with a mounting screw (634). The mounting screw (634) is a screw with a handle and has a hexagonal wrench groove at its outer end. The top of the well cover (631) is provided with a drive assembly (635). The bottom of the drive assembly (635) is connected to the top of the suction module (64).

9. A support device for laying HDPE pipes in collapsible loess areas according to claim 8, characterized in that: The drive assembly (635) includes a mounting frame (6351) and a side fixing frame (6352). The mounting frame (6351) is fixedly installed on the top of the manhole cover (631), and the side fixing frame (6352) is fixedly installed on one side of the top of the manhole cover (631). A drive motor (6353) is fixedly installed on the top of the side fixing frame (6352). A gear (6354) is rotatably connected inside the side fixing frame (6352). The output end of the drive motor (6353) is connected to the gear (6354) via a coupling. The top of the frame (6351) is connected to the top of the frame (6354). A rotary joint (6355) is rotatably connected to the middle of the frame (6351). An external water pump connecting pipe (6356) is fixedly installed at the top output end of the rotary joint (6355), and a connecting flange is installed at its outer end. The bottom rotating end of the rotary joint (6355) rotates to the middle of the manhole cover (631). A toothed ring (6357) is fixedly installed on the outer surface of the rotating end of the rotary joint (6355). The gear (6354) and the toothed ring (6357) are meshed together.

10. A support device for laying HDPE pipes in collapsible loess areas according to claim 9, characterized in that: The suction module (64) includes a suction main pipe (641), which is rotatably connected to the bottom center of the manhole cover (631). An agitator (642) is fixedly installed at the bottom of the suction main pipe (641), and a sludge suction head (643) is fixedly installed at the bottom of the agitator (642). Side suction pipes (644) are fixedly installed in a ring at equal intervals on the outer surface of the suction main pipe (641) above the agitator (642). Suction auxiliary pipes (645) are fixedly installed at equal intervals at the bottom of the side suction pipes (644), and a side suction head (646) is fixedly installed at the bottom of the suction auxiliary pipes (645). A solenoid valve (647) is provided on the suction main pipe (641) above the agitator (642).

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