Fiber composite pipe, manufacturing method, side slope siphon drainage system and construction technology

Abstract

The invention provides a fiber composite pipe, a manufacturing method, a side slope siphon drainage system and a construction technology, and belongs to the technical field of soil drainage equipment. According to the fiber composite pipe and the internal fiber rope, strong capillary suction force is generated by means of liquid surface tension and intermolecular cohesion, water in a slope soil body can be actively adsorbed and discharged, the drainage efficiency in the slope is greatly improved, the stability of the water absorption process is ensured, and the fiber composite pipe is especially suitable for slopes, ditches and the like with the clay property and high water content. Furthermore, the invention provides power drainage equipment with the fiber composite pipe, water in a side slope is collected and adsorbed by means of the fiber composite pipe and discharged into a siphon water tank, and a continuous negative pressure siphon effect is constructed in cooperation with the elevation difference design of the siphon water tank and a drainage pipe, so that the collected water is discharged into a drainage channel; in the design, the drainage efficiency can be improved more efficiently, related power equipment is not needed in the whole process, and the drainage system is particularly suitable for field power-source-free slope scenes.

Description

Technical Field

[0001] This invention relates to the field of soil drainage equipment technology, and in particular to fiber composite pipes and their manufacturing methods, slope siphon drainage systems and their construction processes. Background Technology

[0002] Slope stability is a core guarantee for the safety of engineering construction, and groundwater is a key factor affecting slope stability, directly related to over 70% of slope instability events. When the water content of the slope soil increases, the soil weight increases, the shear strength decreases, and the increased pore water pressure weakens the effective stress, making it prone to problems such as... Figure 1 The potential for landslides, piping, and other geological hazards shown poses a threat to surrounding buildings, transportation facilities, and the ecological environment. Therefore, efficiently draining groundwater from the slope soil is a key measure to improve slope stability and prevent geological disasters.

[0003] While current mainstream slope drainage technologies can achieve basic drainage functions, they have significant shortcomings in drainage efficiency, engineering economy, and applicability. The core problems are concentrated in three dimensions: long drainage cycle, high energy cost, and poor eco-friendliness, which are specifically reflected in the following three types of mainstream technologies: Firstly, passive drainage technology, represented by the drainage consolidation method. This method requires a relatively long time for the foundation to achieve the desired consolidation effect, especially for soft soil with poor permeability, where the drainage speed is slow and the construction period may be even longer; Secondly, there is active power drainage technology, represented by mechanical pump dewatering. This technology extracts groundwater from slopes by deploying equipment such as water pumps and deep well pumps, which can shorten the drainage cycle to some extent. However, this technology is limited by a stable power supply and is difficult to adapt to scenarios without power, such as remote slopes in the field or temporary projects; moreover, the purchase, installation, and long-term operation and maintenance costs of related equipment are high, and the continuous energy consumption exacerbates the economic burden of the project. Thirdly, there is the non-powered drainage technology represented by natural evaporation. This technology relies on atmospheric evaporation and soil capillary action to dissipate moisture. Although it has the advantages of energy saving, environmental protection, and low cost, its drainage efficiency is extremely low, making it difficult to meet the needs of rapid slope stabilization in actual engineering projects.

[0004] Therefore, developing a method for efficient, economical, and environmentally friendly drainage of slopes has become a pressing technical challenge in the field of slope engineering. Summary of the Invention

[0005] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, this invention proposes a fiber composite pipe and its manufacturing method, a slope siphon drainage system and its construction process.

[0006] The technical solution of this invention to solve the technical problem is as follows: a fiber composite tube is proposed, including a sleeve, a hollow flexible tube is provided inside the sleeve, a fiber rope is provided between the hollow flexible tube and the sleeve, one end of the fiber rope passes through the sleeve and extends to the water-absorbing end side of the sleeve; a water-guiding pipe, with a plurality of water-guiding holes opened on its outer wall, the water-guiding pipe is connected to the water-absorbing end of the sleeve, and the fiber rope passes through the sleeve or the water-guiding pipe and covers the outer wall of the water-guiding pipe to form a water-guiding part for guiding liquid to climb into the sleeve; and a protective net, the protective net covering the outer wall of the exposed part of the fiber rope.

[0007] Preferably, the portion of the fiber rope near the water-absorbing end of the sleeve is arranged in a circumferential array to cover the outer wall of the hollow hose, while the remaining portion converges to form a single strand and is placed on one side of the water inlet pipe.

[0008] Preferably, the fiber rope is made of acrylic fiber.

[0009] Preferably, the fiber rope located inside the sleeve is bent towards the end of the hollow hose at the section where it connects to the water inlet pipe, and several of the bent fiber ropes are tied with cable ties, so that the several bent and tied fiber ropes are placed at the end of the hollow hose to form a protective filter section.

[0010] This invention also proposes a method for manufacturing a fiber composite tube, used to construct any of the aforementioned fiber composite tubes, comprising the following methods: S1, prefabricated sleeve, hollow hose and fiber rope; One end of the fiber rope is inserted into the water-absorbing end of the sleeve, and the other end of the fiber rope is inserted into the water-exit end of the sleeve to form a connection end. The other end of the fiber rope is left outside the water-absorbing end of the sleeve to form a traction end. S2, the fiber rope connecting end that passes through the water outlet end of the sleeve is arranged in a circumferential array along the axis of the hollow hose and tightly wrapped around the outer wall of the hollow hose. The rear part of the section of the fiber rope wrapped around the hollow hose converges into a single strand and fits against one side wall of the hollow hose. The connecting end of the fiber rope is fixed to the hollow hose using a clip, so that the connecting end of the fiber rope and the hollow hose form an integral structure. S3, tension the traction end of the fiber rope along the axis of the sleeve, causing the fiber rope connection end and the hollow hose connected thereto to move synchronously, so that the hollow hose is positioned inside the sleeve. After positioning is completed, cut the fiber rope traction end outside the water suction end of the sleeve, leaving a fiber rope length of not less than 50cm exposed on the end face of the water suction end of the sleeve. S4. A water inlet pipe with several sets of water inlet holes on its outer wall is prefabricated. The exposed fiber ropes retained in step S3 are arranged in a circumferential array so that the fiber ropes pass through the sleeve or water inlet pipe. The water inlet pipe is coaxially sleeved on the outer wall of the sleeve. Then, the exposed fiber ropes are arranged in a circumferential array to tightly cover the outer wall of the water inlet pipe. The fiber ropes are fixed to the outer wall of the water inlet pipe using clips to form a water guiding part that guides the liquid to climb into the sleeve. S5. Take the section of fiber rope that the protective net covers on the outer wall of the water pipe, so that the protective net completely covers the exposed fiber rope. Use clips to fix the protective net to the outer wall of the fiber rope to complete the production of the fiber composite pipe.

[0011] Preferably, in S4, the fiber rope is pulled in a circular array through the water inlet of the water pipe by a micro-traction device; the micro-traction device includes a flexible outer tube, the bottom of which is connected to a support rod, and two sets of spaced-apart grippers are hinged on the support rod, forming a clamping space between the two grippers for clamping the fiber rope. Each of the two grippers has a pull plate connected to its opposite side, and the pull plate has a movable groove. After the two pull plates are folded crosswise, the two movable grooves are connected to each other; it also includes a limiting post, which passes through the two movable grooves, and pull ropes are connected to both sides of the limiting post. The pull ropes extend outward and pass through the support rod and the flexible outer tube in sequence. After passing through the flexible outer tube, the pull ropes are detachably connected to a limiting clamp for restraining the pull ropes.

[0012] This invention also proposes a non-powered drainage device, constructed on a slope with drainage needs, comprising: a drainage ditch, opened on the slope, wherein a fiber composite pipe as described above is embedded in the drainage ditch, and the fiber composite pipe is in contact with the soil filling the drainage ditch; a siphon tank, set at the toe of the slope, wherein the outlet end of the fiber composite pipe extends out of the drainage ditch and along the slope surface to the toe of the slope, and is sealed and connected to the inlet end of the siphon tank; a drainage channel, opened on the outside of the toe of the slope, wherein the bottom elevation of the drainage channel is lower than the bottom elevation of the siphon tank; a drainage pipe, both ends of which are sealed and connected to the siphon tank and the drainage channel respectively; the drainage pipe extends into the suction section of the siphon tank, the elevation of which is lower than the elevation of the outlet end of the fiber composite pipe connected to the siphon tank, so as to form a head difference that continuously triggers the siphon effect.

[0013] Preferably, the bottom of the drainage trough is covered with an anti-clogging filter layer; and the space between the drainage trough and the fiber composite pipe is filled with a permeable filler.

[0014] This invention proposes a construction process for a non-powered drainage device, used to construct any of the aforementioned non-powered drainage devices, including the following methods: Step 1: Surveying and trenching; Along the slope surface where drainage is required, a drainage channel is excavated to form a drainage channel according to design requirements. The width of the drainage channel is greater than the diameter of the fiber composite pipe. Then, an anti-clogging filter layer is laid at the bottom of the drainage channel. Step 2: Construct the siphon system; Place one end of the fiber composite tube with the water inlet pipe into the drainage trough, and position the water inlet pipe at a local low point or a point with a high water content in the drainage trough. A siphon tank and a drainage ditch are fixed at the toe of the slope. The unfilled portion of the fiber composite pipe is extended along the slope, and the other end of the fiber composite pipe is connected to the siphon tank. A drainage pipe is connected between the siphon tank and the drainage ditch. The connection between the drainage pipe and the fiber composite pipe is sealed. The elevation of the water intake port of the drainage pipe is lower than the elevation of the water outlet port of the fiber composite pipe to create a head difference that continuously triggers the siphon effect. Step 3: Landfill Positioning Fill the space between the drainage channel and the fiber composite pipe with filler so that the fiber composite pipe is in contact with the filler, ensuring that the pore water in the soil can permeate into the fiber composite pipe through the filler. Step 4: Start-up and commissioning of the siphon system; The water level in the siphon tank is monitored in advance. If the water level does not reach the siphon activation threshold, water is injected into the siphon tank to create an initial water column and trigger the siphon effect. During system operation, the intensity of the siphon and the drainage speed are controlled by adjusting the height of the drain hose outlet, thus enabling proactive management of the drainage process.

[0015] Preferably, in step four, relying on the capillary action of the fiber ropes inside the fiber composite pipe, the pore water in the slope soil is continuously adsorbed, collected, and conducted into the siphon water tank; when the water storage in the tank reaches the siphon activation design threshold, the elevation difference between the drainage pipe and the fiber composite pipe is used to form a negative pressure, triggering the siphon effect, and then the water in the tank is continuously siphoned and discharged into the drainage ditch through the drainage pipe, reducing the water content in the slope.

[0016] Compared with existing technologies, the above technical solution has the following advantages or beneficial effects: 1. The non-powered drainage device of this invention uses fiber composite pipes to collect and absorb water in the slope and discharge it into a siphon tank. With the elevation difference design between the siphon tank and the drainage pipe, a continuous negative pressure siphon effect is created to discharge the collected water into the drainage ditch. This design can improve drainage efficiency more efficiently and does not require any related power equipment, making it particularly suitable for outdoor slope scenarios without power supply.

[0017] 2. The fiber composite pipe in this invention uses fiber ropes and hollow hoses to form a dual-path synergistic drainage system. The hollow hoses provide a high-flow-rate channel for rapid drainage. When the water content is low, the fiber ropes rely on capillary action to continuously pull the residual water, realizing full-cycle drainage with rapid drainage when the water is high and continuous drainage when the water is low. This solves the defects of low natural evaporation efficiency and difficulty in pumping water with mechanical pumps when the water is low, ensuring that the slope soil maintains a low water content state for a long time.

[0018] 3. The fiber composite tube of this invention has an internal fiber rope design with a dispersed front section and a concentrated bundled rear section. This design maximizes the water absorption contact area through the dispersed layout and strengthens the capillary water conduction force through the concentrated bundled layout, thereby reducing water transmission loss. At the same time, the fiber rope fills the space between the sleeve and the hollow hose, forming an internal support structure to prevent the hollow hose from shifting. The friction generated by the interference fit with the inner wall of the sleeve enables reliable positioning of the components without additional connectors, reducing the risk of structural loosening. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0020] Figure 1 This is a schematic diagram of the non-powered drainage device in this invention.

[0021] Figure 2 This is a schematic diagram of the layout structure of the siphon water tank and its two side pipes in this invention.

[0022] Figure 3 This is a front view of the protective netting covering the end of the fiber composite tube in this invention.

[0023] Figure 4 This is a three-dimensional structural diagram of the fiber composite tube in this invention (without protective netting).

[0024] Figure 5 This is a schematic diagram of the internal structure of the fiber composite tube in this invention.

[0025] Figure 6 yes Figure 5 A sectional view along section AA.

[0026] Figure 7 yes Figure 5 A sectional view along the middle BB section.

[0027] Figure 8 This is a schematic diagram of the structure in this invention where the fiber rope is bent and tied to the end of the hollow flexible tube.

[0028] Figure 9 This is a schematic diagram of the structure of the present invention, which uses a micro-traction component to tension the fiber rope through the water pipe.

[0029] Figure 10 This is a schematic diagram of the internal structure of the miniature traction component in this invention.

[0030] Explanation of markings in the diagram: 1. Water guiding hose; 101. Sleeve; 102. Hollow hose; 103. Fiber rope; 104. Water inlet pipe; 105. Drinking hole; 106. Protective net; 107. Flexible outer tube; 108. Support rod; 109. Clamp; 110. Pull plate; 111. Movable groove; 112. Limiting post; 113. Pull rope; 114. Limiting clamp; 2. Slope; 3. Drainage ditch; 4. Siphon tank; 5. Drainage channel; 6. Drainage pipe; 7. Anti-clogging filter layer. Detailed Implementation

[0031] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0032] It should be noted that in the description of this invention, the terms "upper," "lower," "left," "right," "inner," and "outer," etc., which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. This is merely for ease of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0033] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0034] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0035] like Figures 3 to 8As shown, this embodiment proposes a fiber composite tube 1, which includes a sleeve 101, a hollow flexible tube 102 disposed inside the sleeve 101, and a fiber rope 103 disposed between the hollow flexible tube 102 and the sleeve 101. One end of the fiber rope 103 penetrates and extends to the water-absorbing end side of the sleeve 101. Figure 5 (Left side) Due to its inherent properties, the fiber rope 103 has the function of efficiently collecting, adsorbing, and conducting water on the slope 2. Specifically, relying on the surface tension of the liquid and the cohesive force between molecules, the adsorbed water forms a continuous liquid film in the tiny pores of the fiber rope 103. Capillary suction drives the liquid film to climb upward along the pore channels, overcoming gravity to complete the longitudinal water conduction. Finally, the water is continuously conducted to the main body of the fiber rope 103 inside the sleeve 101 and flows into the hollow hose 102. On this basis, several fiber ropes 103 are placed between the hollow hose and the sleeve 101. With their own strength, they can form radial support for the outer flexible sleeve 101, effectively resisting the lateral pressure of the soil and the compression of the buried material, preventing the sleeve 101 from being flattened or deformed, and ensuring that the internal water conduction channels are always unobstructed. A water inlet pipe 104 is connected to the water inlet end of the sleeve 101. The outer wall of the water inlet pipe 104 is provided with several sets of water inlet holes 105, and the fiber rope 103 ( Figure 5 The fiber rope 103 (left side) passes through the sleeve 101 or the water inlet pipe 104 and wraps around the outer wall of the water inlet pipe 104, forming a water guiding part to guide water to climb into the sleeve 101. The fiber ropes 103 wrapped around the outer wall of the water inlet pipe 104 are equivalent to forming a highly efficient water-absorbing layer on the outside of the water inlet pipe 104, which can maximize the water collection contact area. At the same time, the fiber gaps of the fiber rope 103 itself can form a primary filter layer, which can intercept mud and sand particles in the soil, thereby preventing them from entering the interior through the water inlet hole 105 or clogging the water inlet hole 105. The fiber rope 103 of the aforementioned exposed portion (covering the outer wall of the water pipe 104) is covered with a protective net 106. The protective net 106 itself has a certain degree of looseness. Covering the outer wall of the water pipe 104 can further increase the contact range of the water collection end, making it easier for pore water in the soil to penetrate into the water pipe 104. After covering, the protective net 106 can shape several fiber ropes 103 to prevent them from shifting. On the other hand, it forms a protective structure with the fiber ropes 103, which can further enhance the connection efficiency and thus prevent particles from entering the sleeve 101.

[0036] The fiber rope 103 generates strong capillary attraction based on the surface tension of the liquid and the cohesive force between molecules, which can actively adsorb water in the soil of the slope 2 to the water-conducting part, and then transfer it into the sleeve 101 through the fiber rope 103. Compared with the passive infiltration of perforated pipes commonly used in the prior art, the present invention uses the fiber rope 103 to construct it as an active adsorption, which, together with the water inlet pipe 104, the sleeve 101 and the hollow flexible tube 102 and other conductive structures, greatly improves the water removal efficiency and ensures the stability of the water absorption process, especially for slopes 2 and ditches with high clay content.

[0037] In some embodiments, the portion of the fiber rope 103 near the water absorption section of the sleeve 101 is arranged in a circumferential array to cover the outer wall of the water inlet pipe 104, while the remaining portion is gathered into a single strand and placed on one side of the hollow flexible tube 102. The circumferential array covering structure of the fiber rope 103 enables more thorough and uniform absorption of dispersed pore water and significantly increases the total amount adsorbed in a single application. The subsequent design of gathering into a single strand concentrates and integrates the dispersed adsorbed water, reduces diversion losses and path interference during transmission, and strengthens the capillary action, allowing water to be rapidly axially conducted along the concentrated fiber rope 103, greatly improving the flow water transport efficiency and ensuring that the adsorbed water is quickly discharged.

[0038] The fiber rope 103 and hollow hose 102 inside the sleeve 101 form a two-way transport path of capillary water conduction and channel drainage, which can dynamically switch according to the water content of the slope 2. When the water content of the slope 2 is high, the hollow hose 102 provides sufficient flow space and forms a cooperative drainage channel with the fiber rope 103 to quickly drain a large amount of water and avoid water retention. When the water content decreases and the water is dispersed, the fiber rope 103 relies on capillary action to pull the water up and transport it along itself. It can maintain the water transport link without relying on a large flow channel, realizing stable drainage throughout the entire cycle of rapid discharge of high water content and continuous discharge of low water content, which is suitable for the dynamic changes in water content of soft clay strata.

[0039] In this embodiment, the fiber rope 103 is made of acrylic fiber or modified cellulose. The fiber rope 103 undergoes surface treatment to achieve superhydrophilicity. This type of fiber rope 103 features a gradually changing pore size distribution from the surface inwards. The surface layer has micron-sized macropores for rapid adsorption and initial water conduction; the interior has nano-sized micropores that continuously draw water upwards through strong capillary action. This design achieves a balance between rapid water absorption and efficient water flow, thereby improving drainage efficiency.

[0040] In some embodiments, the sleeve 101 adopts a double-layer composite structure. The outer layer is a PVC or PE flexible hose, which, with its own flexibility, can be laid flexibly to conform to the slope of the slope 2, adapting to slopes 2 with different undulations, and is not prone to breakage due to construction bending or soil settlement during installation. The inner layer has a high-strength fiber woven mesh, which provides radial support and effectively prevents the sleeve 101 from being flattened or collapsed due to soil compression or long-term burial, ensuring that the inside of the sleeve 101 remains unobstructed at all times.

[0041] refer to Figure 8 In some embodiments, the fiber rope (103) located inside the sleeve (101) is bent towards the end of the hollow hose (102) at the section connecting with the water inlet pipe (104), so that several fiber ropes (103) are gathered at the port of the hollow hose (102), and the bent parts of several fiber ropes (103) are tied with cable ties to form a bundle structure, so that several fiber ropes (103) are placed at the port of the hollow hose (102) after being bent and tied, forming a protective filter section for intercepting impurities and guiding water. The fiber gaps of the protective filter section form a water flow channel communicating with the internal cavity of the hollow hose (102).

[0042] Continue to refer to Figure 8 The density of the protective filter section formed by bending and binding is determined by the number of fiber ropes (103). In the actual manufacturing process, an appropriate number of fiber ropes (103) can be selected according to the needs and tightly bound to the outer wall of the hollow hose (102). With the help of the properties of fiber ropes (103), it can effectively block materials such as mud and sand, realize the integrated structure of filtration, anti-clogging and water guidance, thereby ensuring the flow of water.

[0043] The present invention also proposes a method for manufacturing a fiber composite pipe 1, used to construct the above-mentioned water conduit, comprising the following steps: S1, prefabricated sleeve 101, hollow hose 102 and fiber rope 103; One end (right end) of the fiber rope 103 is inserted into the water-absorbing end (left end) of the sleeve 101, and the fiber rope 103 is then inserted out from the water-discharging end (right end) of the sleeve 101 to form a connection end. The other end (left end) of the fiber rope 103 is left outside the water-absorbing end of the sleeve 101 to form a traction end, thus laying the foundation for subsequent connection with the hollow hose 102. S2, the connecting end (right end) of the fiber rope 103 that passes through the water outlet end of the sleeve 101 is tightly wrapped around the outer wall of the hollow hose 102 in a circumferential array along the axial direction of the hollow hose 102. The rear part of the section of the fiber rope 103 that wraps around the hollow hose 102 converges into a single strand and adheres to one side wall of the hollow hose 102. The connecting end of the fiber rope 103 is fixed to the hollow hose 102 using a clip, so that the connecting end of the fiber rope 103 and the hollow hose 102 form an integral structure. The fiber rope 103 consists of two layers, which are evenly and densely wrapped around the outer wall of the hollow tube 102. This circumferential wrapping structure is 30cm long, and the fiber rope 103 is fixed to the outer wall of the hollow tube 102 with clips every 5cm. The rear section is also gathered together with clips to form a single strand, and is tied and gathered with clips every 5cm.

[0044] In this embodiment, the card can be made of elastic stainless steel tape, which is wound in an S-shape around the outer wall of the fiber rope 103 to achieve positioning.

[0045] S3, tension the traction end of the fiber rope 103 along the axial direction of the sleeve 101, causing the connecting end of the fiber rope 103 and the hollow hose 102 connected thereto to move synchronously, so that the hollow hose 102 is positioned inside the sleeve 101. After positioning is completed, cut the traction end of the fiber rope 103 outside the water suction end of the sleeve 101, and keep the length of the fiber rope 103 exposed on the end face of the water suction end of the sleeve 101 not less than 50cm. To address the operational pain point of limited internal space in the sleeve 101, the above manufacturing steps allow for the connection and assembly of the fiber rope 103 and the hollow flexible tube 102 in an open space outside the sleeve 101, pre-forming a stable integrated structure. Subsequently, by tensioning the traction end of the fiber rope 103 along the axis of the sleeve 101, both can be smoothly driven into the interior of the sleeve 101 and preliminarily positioned. This effectively avoids operational obstacles caused by step-by-step assembly in a confined space, significantly improving assembly convenience and efficiency.

[0046] Meanwhile, the fiber rope 103 and the inner wall of the sleeve 101 are designed with an interference fit. Although the interference contact will generate some resistance during the tensioning process, this resistance can ensure that the fiber rope 103 and the inner wall of the sleeve 101 are tightly fitted. After the initial installation is completed, the continuous friction force formed by the interference fit can firmly lock the relative position of the fiber rope 103 and the hollow hose 102. The two can be reliably positioned in the sleeve 101 without the need for additional fasteners, thereby ensuring the stability of the internal structure.

[0047] S4. A water pipe 104 with several sets of water inlet holes 105 is prefabricated on the outer wall. The exposed fiber ropes 103 retained in step S3 are arranged in a circumferential array so that the fiber ropes 103 penetrate the sleeve 101 or the water pipe 104 (the water intake end pipe wall or the connecting end pipe wall of the water pipe 104). The water pipe 104 is coaxially sleeved on the outer wall of the sleeve 101. Then, the exposed fiber ropes 103 are arranged in a circumferential array and tightly wrapped around the outer wall of the water pipe 104. The fiber ropes 103 are fixed to the outer wall of the water pipe 104 using clips. Specifically, clips are used to tie and position them at intervals of 2cm to form a water guiding part that guides the liquid to climb into the sleeve 101. In some embodiments, during the intermediate steps of S3 to S4, the fiber ropes 103 protruding from the sleeve 101 can be bent manually. After bending, the bent part can be tied with cable ties so that several fiber ropes 103 are tied together to form a protective filter section. This protective filter section is located at the port of the hollow hose 102 and can form a filter protection at the port of the hollow hose 102, thereby avoiding blockage and other phenomena in this part.

[0048] S5, take the section of fiber rope 103 that the protective net 106 covers on the outer wall of the water pipe 104, so that the protective net 106 completely covers the exposed fiber rope 103, and use clips to fix the protective net 106 to the outer wall of the fiber rope 103, thus completing the fabrication of the fiber composite pipe 1.

[0049] In the conventional implementation of process S4, the assembly process of fiber rope 103 and water pipe 104 is as follows: following a circular distribution principle, the ends of fiber rope 103 are aligned with the water inlet holes 105 of water pipe 104 one by one and passed through. Then, the fiber rope 103 is pulled out from the other side of water pipe 104. By reserving a sufficient length of fiber rope 103, it is ensured that it can completely cover the outer wall of water pipe 104 later. Using this implementation method, the process of passing through and pulling out each hole requires precise alignment of each water inlet hole 105, making the overall process quite cumbersome. On the other hand, this assembly operation is limited to the time after the hollow hose 102 is installed inside the sleeve 101 and the excess fiber rope 103 is cut off. Most of the work is done on-site, which reduces the efficiency of construction and assembly to some extent.

[0050] In response to the above problems, such as Figures 8 to 9 As shown, the fiber rope 103 is pulled in a circular array through the water inlet hole 105 of the water pipe 104 by a miniature traction device. The miniature traction device includes a flexible outer tube 107, the bottom of which is connected to a support rod 108. Two sets of spaced-apart grippers 109 are hinged to the support rod 108, forming a gripping space between the two grippers 109 for holding the fiber rope 103. Each of the two grippers 109 has a pull plate 110 connected to its opposite side. The device has a movable groove 111. After the two pull plates 110 are folded in a cross manner, the two movable grooves 111 are in a state of interconnection. It also includes a limiting post 112, which is inserted into the two movable grooves 111. Pull ropes 113 are connected to both sides of the limiting post 112. The pull ropes 113 extend outward and pass through the support rod 108 and the flexible outer tube 107 in sequence. After the pull ropes 113 pass through the flexible outer tube 107, they are detachably connected to a limiting clamp 114 for restraining the pull ropes 113.

[0051] Before step S4, several flexible outer tubes 107 can be pre-inserted into the corresponding water inlet holes 105 from the outside of the water inlet pipe 104, so that the clamping ends 109 of the flexible outer tubes 107 are located inside the water inlet pipe 104, thus completing the preliminary setup; when the manufacturing process progresses to step S4, the following steps shall be followed: 1. Place the fiber rope 103 to be pulled into the clamping space of each set of grippers 109; 2. Pull the pull rope 113 to the outside of the flexible outer tube 107. The pull rope 113 drives the limiting post 112 to move along the movable groove 111 of the pull plate 110, causing the two cross-set pull plates 110 to fold towards each other, thereby driving the two grippers 109 to clamp in the center, so as to achieve a stable clamping of the fiber rope 103 and the grippers 109. 3. A limiting clamp 114 is installed at the exposed end of the pull rope 113 that passes through the flexible outer tube 107, so that one end of the limiting clamp 114 abuts against the port of the flexible outer tube 107. The limiting clamp 114 locks the tension state of the pull rope 113, ensuring that the clamp 109 always maintains the clamping force on the fiber rope 103, and preventing the fiber rope 103 from falling off during the traction process. 4. Simultaneously tension the traction ends of all flexible outer tubes 107 to the outside of the water inlet pipe 104, and with the help of the clamping force of the gripper 109 on the fiber rope 103, pull several fiber ropes 103 out from the water inlet hole 105 to the outside of the water inlet pipe 104. 5. Remove the limiting clamp 114 and the pull rope 113, release the gripper 109 from the fiber rope 103, and then wrap the pulled-out fiber rope 103 in a circular array according to the design requirements and fix it to the outer wall of the water pipe 104 to complete the assembly.

[0052] This miniature traction component employs a pre-installation and post-connection construction logic, addressing the pain point of time constraints inherent in conventional methods. Specifically, the flexible outer tube 107 can be pre-installed within the water inlet 105 before construction, eliminating the need to wait for the hollow flexible tube 102 to be installed inside the sleeve 101. Subsequently, in stage S4, the two are connected and tensioned, significantly shortening the manufacturing time. Furthermore, this miniature traction component has a simple and compact overall structure, without complex transmission components, allowing it to smoothly penetrate the water inlet 105 from the outside and complete the pre-installation without being hindered by a bulky structure.

[0053] refer to Figures 1 to 2The present invention also proposes a non-powered drainage device, which is constructed on a slope 2 with drainage needs, including a drainage channel 3, which is opened on the slope surface or bottom of the slope 2. The aforementioned fiber composite pipe 1 is buried in the drainage channel 3, and the fiber composite pipe 1 is in close contact with the soil filling the drainage channel 3. A siphon water tank 4 is set at the foot of the slope 2. After the water outlet end of the fiber composite pipe 1 passes through the drainage channel 3, it extends along the slope surface of the slope 2 to the foot of the slope and is sealed and connected with the water inlet end of the siphon water tank 4, so as to collect and absorb the water in the slope 2 through the fiber composite pipe 1 and discharge it into the siphon water tank 4. A drainage ditch 5 is provided at the toe of slope 2. The bottom elevation of the drainage ditch 5 is lower than the bottom elevation of the siphon tank 4. A drainage pipe 6 is sealed between the siphon tank 4 and the drainage ditch 5. The drainage pipe 6 extends into the water intake section port inside the siphon tank 4. Its elevation is lower than the water outlet elevation of the fiber composite pipe 1 connected to the siphon tank 4, so as to form a head difference that continuously triggers the siphon effect.

[0054] This design achieves continuous, stable, and efficient non-powered drainage through a structural design of fiber composite pipe 1 for water collection, siphon tank 4 for transfer, and drainage pipe 6 for siphon drainage. It can precisely solve the drainage problem of soft clay slope 2. The entire design relies on the capillary adsorption of fiber rope 103 and the siphon effect to achieve continuous and stable non-powered drainage, eliminating the need for additional water pumps and other equipment, significantly reducing operation and maintenance costs and frequency. The design layout between drainage channel 5 and siphon tank 4 creates a natural drainage gradient, ensuring rapid collection and discharge of water discharged by the siphon.

[0055] In some embodiments, the bottom of the drainage ditch 3 is provided with an anti-clogging filter layer 7, which preferably uses clean fine sand or gravel as a base layer, laid to a thickness of 25cm, to further prevent the fiber composite pipe 1 from directly contacting the soil and causing it to become clogged. A permeable filler is filled between the drainage ditch 3 and the fiber composite pipe 1, preferably using sand backfill, which is then gently compacted to ensure close contact between the fiber composite pipe 1 and the soil, facilitating the collection and adsorption of water within the slope 2.

[0056] Furthermore, the present invention also proposes a construction process for a non-powered drainage device, used to construct the aforementioned non-powered drainage device, which includes the following methods: Step 1: Surveying and trenching; Along the slope 2 where drainage is required, a drainage ditch 3 is excavated manually or by machine according to design requirements. The width of the drainage ditch 3 is slightly larger than the diameter of the fiber composite pipe 1. Then, an anti-clogging filter layer 7 is laid at the bottom of the drainage ditch 3. Step 2: Construct the siphon system; Place one end of the fiber composite tube 1 with the water inlet pipe 104 into the drainage trough 3, and place the water inlet pipe 104 at a local low point or a point with a high water content in the drainage trough 3. A siphon tank 4 and a drainage ditch 5 are fixed at the toe of slope 2. The unfilled portion of the fiber composite pipe 1 is extended along the slope, and the other end of the fiber composite pipe 1 is connected to the siphon tank 4. A drainage pipe 6 is connected between the siphon tank 4 and the drainage ditch 5. The connection between the drainage pipe 6 and the fiber composite pipe 1 is sealed. The elevation of the water intake port of the drainage pipe 6 is lower than the elevation of the water outlet port of the fiber composite pipe 1, so as to form a head difference that continuously triggers the siphon effect. Step 3: Landfill Positioning Fill the space between the drainage channel 3 and the fiber composite pipe 1 with filler so that the fiber composite pipe 1 is in contact with the filler, ensuring that the pore water in the soil can permeate into the fiber composite pipe 1 through the filler. Step 4: Start-up and commissioning of the siphon system; The water volume in the siphon tank 4 is observed in advance. If the water volume does not reach the siphon activation threshold, water is injected into the siphon tank 4 to create an initial water column to trigger the siphon effect. During system operation, the intensity of the siphon and the drainage speed are controlled by adjusting the height of the drain hose outlet, thus enabling proactive management of the drainage process.

[0057] In step four, relying on the capillary action of the fiber rope 103 inside the fiber composite pipe 1, the pore water in the soil of the slope 2 is continuously adsorbed, collected and conducted to the siphon water tank 4; when the water storage in the tank reaches the siphon activation design threshold, the elevation difference between the drainage pipe 6 and the fiber composite pipe 1 is used to form a negative pressure, triggering the siphon effect, and then the water in the tank is continuously siphoned and discharged into the drainage ditch 5 through the drainage pipe 6, reducing the water content in the slope 2.

[0058] This research provides a new technical approach and method for treating soft clay foundations, enriching the technical means for such treatment. Future improvements in its applicability and efficiency can be achieved through optimization of fiber composite pipe and siphon system design. It also promotes technological development and progress in related fields.

[0059] Although the specific embodiments of the invention have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the invention. Based on the technical solutions of the invention, various modifications or variations that can be made by those skilled in the art without creative effort are still within the scope of protection of the invention.

Claims

1. A fiber composite tube, characterized in that, include: A sleeve (101) is provided inside the sleeve (101) with a hollow hose (102) and a fiber rope (103) between the hollow hose (102) and the sleeve (101). One end of the fiber rope (103) passes through the sleeve (101) and extends to the water-absorbing end of the sleeve (101). The water inlet pipe (104) has several sets of water inlet holes (105) on its outer wall. The water inlet pipe (104) is connected to the water absorption end of the sleeve (101). The fiber rope (103) passes through the sleeve (101) or the water inlet pipe (104) and covers the outer wall of the water inlet pipe (104) to form a water guiding part for guiding liquid to climb into the sleeve (101). A protective net (106) is used to cover the outer wall of the exposed portion of the fiber rope (103).

2. The fiber composite tube according to claim 1, characterized in that, The fiber rope (103) near the water-absorbing end of the sleeve (101) is arranged in a circumferential array to cover the outer wall of the hollow hose (102), and the rest of the fiber rope (103) is gathered into a single strand and placed on one side of the water inlet pipe (104).

3. The fiber composite tube according to claim 1, characterized in that, The fiber rope (103) is made of acrylic fiber.

4. A fiber composite tube according to claim 1, characterized in that, The fiber rope (103) located inside the sleeve (101) is bent towards the end of the hollow hose (102) at the section where it connects with the water pipe (104). The bent sections of the fiber rope (103) are tied with cable ties, so that the bent and tied fiber rope (103) is placed at the end of the hollow hose (102) to form a protective filter section.

5. A method for manufacturing a fiber composite tube, characterized in that, The method for constructing the fiber composite tube according to any one of claims 1-4 includes the following: S1, prefabricated sleeve (101), hollow hose (102) and fiber rope (103). One end of the fiber rope (103) is inserted into the water-absorbing end of the sleeve (101), and the other end of the fiber rope (103) is inserted out from the water-discharging end of the sleeve (101) to form a connecting end. The other end of the fiber rope (103) is left outside the water-absorbing end of the sleeve (101) to form a traction end. S2, the connecting end of the fiber rope (103) that passes through the water outlet end of the sleeve (101) is tightly wrapped around the outer wall of the hollow hose (102) in a circumferential array along the axial direction of the hollow hose (102). The rear part of the section of the fiber rope (103) that wraps around the hollow hose (102) is converged into a single strand and attached to one side wall of the hollow hose (102). The connecting end of the fiber rope (103) is fixed to the hollow hose (102) using a clip, so that the connecting end of the fiber rope (103) and the hollow hose (102) form an integral structure. S3, tension the traction end of the fiber rope (103) along the axial direction of the sleeve (101), drive the connecting end of the fiber rope (103) and the hollow hose (102) connected thereto to move synchronously, so that the hollow hose (102) is positioned inside the sleeve (101), and after positioning is completed, cut the traction end of the fiber rope (103) outside the water absorption end of the sleeve (101), and retain the length of the fiber rope (103) exposed on the end face of the water absorption end of the sleeve (101) not less than 50cm; S4. A water pipe (104) with several sets of water inlet holes (105) is prefabricated on the outer wall. The exposed fiber rope (103) retained in step S3 is arranged in a circumferential array so that the fiber rope (103) passes through the sleeve (101) or the water pipe (104). The water pipe (104) is coaxially sleeved on the outer wall of the sleeve (101). Then, the exposed fiber rope (103) is arranged in a circumferential array and tightly wrapped around the outer wall of the water pipe (104). The fiber rope (103) is fixed to the outer wall of the water pipe (104) using a clamp to form a water guiding part that guides the liquid to climb into the sleeve (101). S5, take the section of fiber rope (103) that the protective net (106) covers on the outer wall of the water pipe (104), so that the protective net (106) completely covers the exposed fiber rope (103), and use clips to fix the protective net (106) to the outer wall of the fiber rope (103) to complete the fabrication of the fiber composite pipe (1).

6. The method for manufacturing a fiber composite tube according to claim 5, characterized in that, In S4, the fiber rope (103) is pulled in a circular array through the water inlet hole (105) of the water pipe (104) by a micro-traction device; the micro-traction device includes a flexible outer tube (107), the bottom of which is connected to a support rod (108), and two sets of spaced-apart grippers (109) are hinged on the support rod (108), forming a gripping space between the two grippers (109) for gripping the fiber rope (103), and a pull plate (110) is connected to the opposite side of each of the two grippers (109). The device has a movable groove (111) in the middle. After the two pull plates (110) are folded in a cross shape, the two movable grooves (111) are in a state of interconnection. It also includes a limiting post (112), which is inserted into the two movable grooves (111). Pull ropes (113) are connected to both sides of the limiting post (112). The pull ropes (113) extend outward and pass through the support rod (108) and the flexible outer tube (107) in sequence. After the pull ropes (113) pass through the flexible outer tube (107), they are detachably connected to a limiting clamp (114) for restraining the pull ropes (113).

7. A non-powered drainage device, constructed on a slope (2) with drainage needs, characterized in that, include: A drainage ditch (3) is provided on the slope (2), and a fiber composite pipe (1) as described in any one of claims 1-4 is buried in the drainage ditch (3), and the fiber composite pipe (1) is in contact with the soil filling the drainage ditch (3); The siphon water tank (4) is set at the foot of the slope (2). After the outlet end of the fiber composite pipe (1) passes through the drainage channel (3), it extends along the slope (2) to the foot of the slope and is sealed and connected with the inlet end of the siphon water tank (4). A drainage ditch (5) is constructed on the outside of the toe of the slope (2), and the bottom elevation of the drainage ditch (5) is lower than the bottom elevation of the siphon tank (4). The drain pipe (6) is sealed at both ends to the siphon tank (4) and the drain channel (5). The drain pipe (6) extends into the water intake section of the siphon tank (4), and its elevation is lower than the elevation of the outlet end of the fiber composite pipe (1) connected to the siphon tank (4) to form a head difference that continuously triggers the siphon effect.

8. A surface non-powered drainage device according to claim 7, characterized in that, The bottom of the drainage trough (3) is covered with an anti-clogging filter layer (7); the drainage trough (3) and the fiber composite pipe (1) are filled with a permeable filler.

9. A construction process for a non-powered drainage device, characterized in that, The method for constructing the non-powered drainage device according to any one of claims 7-8 includes the following: Step 1: Surveying and trenching; Along the slope (2) where drainage is required, a drainage ditch (3) is excavated according to the design requirements. The width of the drainage ditch (3) is greater than the diameter of the fiber composite pipe (1). Then, an anti-clogging filter layer (7) is laid at the bottom of the drainage ditch (3). Step 2: Construct the siphon system; Place one end of the fiber composite tube (1) with the water inlet pipe (104) into the drainage trough (3), and place the water inlet pipe (104) at a local low point or a point with a high water content in the drainage trough (3); A siphon tank (4) is fixed at the foot of the slope (2) and a drainage ditch (5) is opened. The unfilled part of the fiber composite pipe (1) is extended along the slope and laid so that the other end of the fiber composite pipe (1) is connected to the siphon tank (4). A drainage pipe (6) is connected between the siphon tank (4) and the drainage ditch (5). The connection between the drainage pipe (6) and the fiber composite pipe (1) is sealed. The elevation of the water intake section of the drainage pipe (6) is lower than the elevation of the water outlet of the fiber composite pipe (1) so as to form a head difference that continuously triggers the siphon effect. Step 3: Landfill Positioning Fill the space between the drainage trough (3) and the fiber composite pipe (1) with filler so that the fiber composite pipe (1) comes into contact with the filler, ensuring that the soil pore water can penetrate into the fiber composite pipe (1) through the filler. Step 4: Start-up and commissioning of the siphon system; The water volume in the siphon tank (4) is observed in advance. If the water volume does not reach the siphon activation threshold, water is injected into the siphon tank (4) to create an initial water column to trigger the siphon effect. During system operation, the intensity of the siphon and the drainage speed are controlled by adjusting the height of the drain hose outlet, thus enabling proactive management of the drainage process.

10. The construction process of a non-powered drainage device according to claim 9, characterized in that, In step four, relying on the capillary action of the fiber rope (103) in the fiber composite pipe (1), the pore water in the soil of the slope (2) is continuously adsorbed, collected and conducted to the siphon water tank (4); when the water storage in the tank reaches the siphon start design threshold, the elevation difference between the drainage pipe (6) and the fiber composite pipe (1) forms a negative pressure, triggering the siphon effect, and then the water in the tank is continuously siphoned and discharged into the drainage ditch (5) through the drainage pipe (6), reducing the water content in the slope (2).

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