A reinforced structure for a dry-stone wall
By installing a filter assembly and a dredging assembly consisting of a support sleeve, a threaded filter head, and a fastening screw inside the drainage pipe of the masonry retaining wall, the problems of poor drainage and unstable foundation of the masonry retaining wall structure were solved, thus achieving long-term stability and overturning resistance of the retaining wall.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN HUAXIN TRAFFIC ENG CO LTD
- Filing Date
- 2025-09-05
- Publication Date
- 2026-07-24
AI Technical Summary
Traditional masonry retaining wall structures suffer from insufficient overall structural strength, susceptibility to water erosion leading to unstable foundations, and inadequate drainage systems that result in increased soil moisture content and lateral pressure, threatening the stability of the retaining wall.
A support sleeve, threaded filter head, and filter assembly with a fastening screw fixing sleeve are installed inside the drainage pipe of the masonry retaining wall. Together with a dredging assembly containing a collection chamber, water pump, and connecting pipes, the blockage problem can be solved by manual cleaning of the detachable filter head and flushing with the water pump, ensuring smooth drainage.
It effectively avoids clogging of the filter structure, ensures the stability of the retaining wall's reinforcement structure, improves the bonding strength between the base and the foundation, prevents the increase of lateral pressure due to soil water accumulation, and ensures the long-term stability of the retaining wall.
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Figure CN224549191U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of retaining wall technology, and in particular to a masonry retaining wall reinforcement structure. Background Technology
[0002] In the field of retaining wall technology, traditional masonry retaining wall structures have some limitations. The main problems that may arise during the design and construction of existing masonry retaining walls include: insufficient overall structural strength, making them susceptible to water erosion leading to unstable foundations and consequently affecting the stability of the retaining wall; and an inadequate drainage system that cannot effectively drain water accumulated behind the wall, potentially causing soil instability or even collapse when soil moisture content is too high.
[0003] A masonry retaining wall reinforcement structure, disclosed in publication number "CN221919518U", uses a filter assembly to filter and block sediment carried by water flow to the inside of the retaining wall. This prevents sediment from being carried by water as it flows through the drainage pipe into the drainage ditch, which could lead to soil erosion and, in severe cases, landslides. Additionally, a repair assembly is installed inside the drainage pipe as a remedial measure in case the filter assembly is damaged. Since the filter assembly is buried in the soil after the retaining wall construction is completed, replacing it is difficult. To prevent soil erosion, the repair assembly can be inserted into the drainage pipe, facilitating the maintenance of the retaining wall's water filtration function.
[0004] However, in actual use, the filter structure is prone to blockage due to the accumulation of intercepted soil particles and impurities over long-term use. After blockage, the drainage channel narrows rapidly or is even completely blocked, and the water in the inner wall soil cannot be discharged, which leads to an increase in soil moisture content and a surge in lateral pressure. This not only significantly reduces the drainage effect, but may also cause the retaining wall to crack and tilt, threatening the stability of the reinforced structure. Utility Model Content
[0005] This utility model aims to at least partially solve one of the technical problems in the related art.
[0006] Therefore, the purpose of this utility model is to propose a reinforced structure for masonry retaining walls. A filter assembly containing a support sleeve, a threaded filter head, and a fixed sleeve with a fastening screw is installed inside the drainage pipe of the masonry retaining wall. This is combined with a dredging assembly containing a collection chamber, a water pump, and connecting pipes. The connecting arm has a cavity that communicates with the connecting head. This solution solves the blockage problem through two methods: manual removal and cleaning of the detachable filter head, and in-situ flushing of the filter head using a water pump and connecting pipes to supply water to the cavity connecting arm. This effectively avoids the problems of poor drainage and increased lateral pressure due to water accumulation in the soil caused by filter structure blockage, ensuring the stability of the reinforced retaining wall structure.
[0007] To achieve the above objectives, this utility model proposes a masonry retaining wall reinforcement structure, including a base, a retaining wall, drainage pipes, a filter assembly, and a dredging assembly. The retaining wall is fixedly connected to the top of the base. Multiple drainage pipes are fixedly inserted through the outer wall of the retaining wall. The filter assembly includes a support sleeve, a filter head, a fixing sleeve, and a connecting assembly. The support sleeve is slidably installed on the inner wall of the drainage pipe. The filter head is threaded onto one end of the support sleeve. The fixing sleeve is fitted onto the exposed end of the drainage pipe. The connecting assembly is provided between the other end of the fixing sleeve and the support sleeve, and the dredging assembly is installed on the top of the base and connected to the connecting assembly.
[0008] This utility model relates to a masonry retaining wall reinforcement structure. The base is cast into the bearing layer of the foundation. The retaining wall is fixed to the base through a masonry process to form an integral whole. The reinforcing bars enhance the bonding strength between the base and the foundation and disperse lateral pressure. The drainage pipes are staggered and run through the retaining wall. The inclined setting facilitates drainage and prevents backflow. In the filter assembly, the support sleeve slides along the guide groove of the drainage pipe, the filter head intercepts impurities, and the fixing sleeve is fixed to the pipe by fastening screws. The connecting assembly connects the fixing sleeve and the support sleeve, which can drive the filter head for easy disassembly and assembly. The collection chamber of the dredging assembly collects water after the filter plate filters impurities. The water pump delivers the water to the drainage pipe through the connecting arm cavity of the connecting assembly via the pipe, realizing dredging and preventing siltation. This structure enhances the overall resistance to overturning and settlement through a base, retaining wall, and reinforcing ribs, solving the problem of insufficient base rigidity in the prior art. The filter components intercept impurities and are easy to clean, while the dredging components efficiently dredge pipes, solving the problems of easy blockage and difficult dredging of drainage systems. The fixing sleeve and fastening screws ensure that the components are firmly connected, solving the problem of easy detachment between drainage pipes and the reinforcement structure, and ensuring the long-term stability of the retaining wall.
[0009] In addition, the masonry retaining wall reinforcement structure proposed above according to this utility model may also have the following additional technical features:
[0010] Specifically, the connecting assembly includes a support arm, a support head, a connecting arm, and a connecting head. One end of a plurality of support arms is fixedly connected in a circumferential array to the inner wall of the other end of the fixed sleeve plate and the support sleeve plate. The two ends of the connecting arm are respectively fixedly connected to the other ends of the two sets of support arms. The connecting head is fixedly connected to the end of the connecting arm.
[0011] Specifically, the unblocking component includes a collection chamber, a water pump, a first connecting pipe, and a second connecting pipe. The collection chamber and the water pump are both installed on the top of the base. The first connecting pipe is provided between the collection chamber and the input end of the water pump, and they are connected through the first connecting pipe. The second connecting pipe is provided between the output end of the water pump and the connector, and they are connected through the second connecting pipe.
[0012] Specifically, the outer wall of the fixing sleeve is threaded with multiple fastening screws in a circumferential array, and the outer wall of the drainage pipe is provided with screw holes that match the fastening screws.
[0013] Specifically, a filter plate is installed on the top of the collection chamber.
[0014] Specifically, the outer wall of the base is fixedly connected with multiple reinforcing ribs at equal intervals.
[0015] Specifically, the connecting arm has a hollow structure inside, and one end of the connecting arm is connected to the connecting head.
[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:
[0018] Figure 1 This is a schematic diagram of the masonry retaining wall reinforcement structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the internal structure of a drainage pipe according to an embodiment of the present invention;
[0020] Figure 3 This is a schematic diagram of the structure of a filter head according to an embodiment of the present invention;
[0021] Figure 4 This is a schematic diagram of the structure of the second connecting pipe in one embodiment of the present invention.
[0022] As shown in the figure:
[0023] 1. Base; 2. Retaining wall; 21. Reinforcing bars; 3. Drainage pipes;
[0024] 4. Filter assembly; 41. Support sleeve; 42. Filter head; 43. Fixing sleeve; 431. Fastening screw; 44. Connecting assembly; 441. Support arm; 442. Support head; 443. Connecting arm; 444. Connecting head;
[0025] 5. Unblocking components; 51. Collection chamber; 511. Filter plate; 52. Water pump; 53. First connecting pipe; 54. Second connecting pipe. Detailed Implementation
[0026] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. Rather, the embodiments of this utility model include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.
[0027] The following description, in conjunction with the accompanying drawings, describes the masonry retaining wall reinforcement structure according to an embodiment of the present invention.
[0028] like Figures 1-4 As shown, the masonry retaining wall reinforcement structure of this utility model embodiment may include a base 1, a retaining wall 2, a drainage pipe 3, a filter assembly 4, and a dredging assembly 5.
[0029] The retaining wall 2 is fixedly connected to the top of the base 1, and multiple drainage pipes 3 are fixedly penetrated through the outer wall of the retaining wall 2.
[0030] Furthermore, the outer wall of the base 1 is fixedly connected with multiple reinforcing ribs 21 at equal intervals.
[0031] It should be noted that the retaining wall 2 described in this embodiment is constructed using a mortar-grouted masonry process and fixedly connected to the top of the base 1 with high-strength cement mortar. The joint surface of the two forms a continuous load-bearing whole. The base 1 is made of cast concrete, and its bottom is embedded in the foundation bearing layer to ensure the overturning stability of the overall structure. Multiple drainage pipes 3 are all made of PVC-U double-wall corrugated pipes, and their pipe diameter is designed according to the height of the retaining wall 2 and the expected drainage volume. The pipes are fixedly inserted through the outer wall of the retaining wall 2 in a staggered vertical and horizontal distribution. The inner port of the pipe is inclined towards the inner side of the retaining wall 2, and the outer port extends out of the outer wall of the retaining wall 2 and is inclined downwards. The corner treatment facilitates rapid drainage of accumulated water and reduces backflow of external water. Furthermore, multiple reinforcing ribs 21 are fixedly connected at equal intervals to the outer wall of the base 1. The reinforcing ribs 21 are precast reinforced concrete with a right-angled triangular cross-section. The right-angled sides are fixedly connected to the outer wall of the base 1 and the surface of the bearing layer of the foundation through a rebar anchoring process and cement mortar. Adjacent reinforcing ribs 21 are distributed along the length of the base 1, and the height of each reinforcing rib 21 is adapted to the height of the base 1. This greatly improves the bonding strength between the base 1 and the foundation, disperses the lateral pressure transmitted by the retaining wall 2, and prevents the base 1 from settling or displacing due to concentrated stress.
[0032] The filter assembly 4 includes a support sleeve 41, a filter head 42, a fixing sleeve 43, and a connecting assembly 44.
[0033] The support sleeve 41 is slidably installed on the inner wall of the drainage pipe 3, the filter head 42 is threadedly installed on one end of the support sleeve 41, the fixing sleeve 43 is sleeved on the exposed end of the drainage pipe 3, and a connecting component 44 is provided between the fixing sleeve 43 and the other end of the support sleeve 41, and they are connected by the connecting component 44.
[0034] It should be noted that the support sleeve 41 described in this embodiment is made of corrosion-resistant rigid PVC material. A suitable sliding gap is reserved between its outer wall and the inner wall of the drainage pipe 3. Three guide ridges are evenly arranged axially on the outer wall of the support sleeve 41, and corresponding guide grooves matching the guide ridges are provided on the inner wall of the drainage pipe 3. This ensures that the support sleeve 41 will not rotate or shift when sliding within the drainage pipe 3. The filter head 42 is integrally injection molded from high-strength nylon material. Its surface is evenly distributed with filter holes of gradually changing diameter, with the inner hole diameter slightly larger and the outer hole diameter slightly smaller. The connecting end of the filter head 42 is provided with external threads that precisely match the internal threaded hole at one end of the support sleeve 41. Water-stop tape is wrapped around the threaded connection to increase its strength. With strong sealing, the fixing sleeve 43 is an annular structure adapted to the outer wall of the drainage pipe 3, made of the same PVC material. Its inner wall is provided with an anti-slip rubber pad. After being fitted onto the exposed end of the drainage pipe 3, it can be tightly fitted to the pipe through the fastening structure of the outer wall. The connecting component 44 between the other end of the fixing sleeve 43 and the supporting sleeve 41 is made of stainless steel to improve structural strength. The connection parts of the connecting component 44, the fixing sleeve 43, and the supporting sleeve 41 are all fixed by welding or bolt fastening to ensure that the three form a synchronous whole. When it is necessary to remove the filter head 42, the supporting sleeve 41 can be smoothly slid along the inner wall of the drainage pipe 3 by pushing or pulling the connecting component 44, so as to realize the convenient removal and installation of the filter head 42.
[0035] The unblocking component 5 is installed on top of the base 1 and connected to the connecting component 44.
[0036] Specifically, the retaining wall 2 forms an integral load-bearing structure with the base 1 through masonry. The base 1 is embedded in the bearing layer of the foundation and reinforced with ribs 21 to enhance its anti-overturning capacity. The drainage pipes 3 penetrate the retaining wall 2 in an inclined and staggered manner, which can efficiently drain the soil water accumulated in the inner wall and reduce backflow. In the filter assembly 4, the support sleeve 41 achieves stable sliding with the guide groove on the inner wall of the drainage pipe 3 by means of the guide protrusion. The filter head 42 is fixed to the end of the support sleeve 41 by a threaded connection, which can effectively intercept soil particles to prevent loss. The fixing sleeve 43 is fixed to the exposed end of the drainage pipe 3 by an anti-slip pad and a fastening structure, and is connected to the support sleeve by a stainless steel connecting assembly 44. 41 forms a linked whole. When the filter head 42 is clogged by impurities, it can be solved in two ways: First, loosen the fastening structure of the fixing sleeve plate 43, pull the connecting component 44 to drive the supporting sleeve plate 41 to slide out along the drainage pipe 3, unscrew the filter head 42, clean it and reinstall it. Second, connect the unblocking component 5 at the top of the base 1 to the connecting component 44 to achieve in-situ flushing of the filter head 42. Both methods can quickly remove the blockage and ensure that the drainage pipe 3 is unobstructed. This solves the problem in the background technology of poor drainage caused by filter structure blockage, increased lateral pressure of soil water accumulation, and threat to the stability of the retaining wall, and ensures the long-term reliable operation of the reinforced structure.
[0037] In one embodiment of this utility model, such as Figures 1-4 As shown, the connecting assembly 44 includes a support arm 441, a support head 442, a connecting arm 443, and a connecting head 444. One end of the plurality of support arms 441 is fixedly connected in a circumferential array to the inner wall of the other end of the fixed sleeve plate 43 and the support sleeve plate 41. The two ends of the connecting arm 443 are respectively fixedly connected to the other ends of the two sets of support arms 441. The connecting head 444 is fixedly connected to the end of the connecting arm 443.
[0038] It should be noted that the number of circumferential arrays of support arms 441 described in this embodiment is set to multiple, and the included angles of adjacent support arms 441 are equal, to ensure that the fixed sleeve plate 43 and the support sleeve plate 41 are subjected to uniform force, and to avoid local stress concentration that could lead to component deformation. The support head 442 adopts a hemispherical structure, and the inner wall of the connector head 444 is provided with a sealing ring groove, in which an aging-resistant nitrile rubber sealing ring is embedded to prevent water leakage when connected to the pipeline later.
[0039] In one embodiment of this utility model, such as Figures 1-4 As shown, the unblocking component 5 includes a collection chamber 51, a water pump 52, a first connecting pipe 53, and a second connecting pipe 54. The collection chamber 51 and the water pump 52 are both installed on the top of the base 1. The first connecting pipe 53 is provided between the collection chamber 51 and the input end of the water pump 52, and they are connected through the first connecting pipe 53. The second connecting pipe 54 is provided between the output end of the water pump 52 and the connector 444, and they are connected through the second connecting pipe 54.
[0040] It should be noted that the collection chamber 51 described in this embodiment is made of polyethylene, which can collect sufficient rainwater or drain water, and is lightweight and easy to install. The water pump 52 is a corrosion-resistant submersible pump to ensure sufficient water pressure to deliver water to the connecting component 44. The first connecting pipe 53 and the second connecting pipe 54 are both UPVC water supply pipes. The outer wall of the pipe is wrapped with thermal insulation cotton to prevent freezing and cracking in winter. The connection between the pipe and the collection chamber 51, the water pump 52, and the connector 444 is a threaded connection, and the interface is wrapped with Teflon tape and coated with waterproof glue to ensure a leak-proof seal. In addition, a drain valve is provided at the bottom of the collection chamber 51 to facilitate regular cleaning of the deposited impurities inside the chamber.
[0041] Specifically, when water accumulates around the masonry retaining wall or the drainage pipe 3 becomes blocked, the collection chamber 51 first collects rainwater or manually injected dredging water. After the water pump 52 is started, the water enters the pump 52 through the first connecting pipe 53, and then is transported to the cavity of the connecting arm 443 through the second connecting pipe 54 and the connector 444, finally entering the drainage pipe 3 to clear the blockage. At the same time, clean water can be injected into the drainage pipe 3 daily through this component to prevent siltation in the pipe. This design solves the problems of easy blockage and difficult dredging of the drainage system of masonry retaining walls in the background technology, avoids the softening of the retaining wall foundation and the increase of lateral pressure due to water accumulation, and ensures the long-term stability of the retaining wall.
[0042] In one embodiment of this utility model, such as Figures 1-4 As shown, the outer wall of the fixed sleeve 43 is threaded with multiple fastening screws 431 in a circumferential array, and the outer wall of the drainage pipe 3 is provided with screw holes that match the fastening screws 431.
[0043] It should be noted that the fastening screw 431 described in this embodiment is a high-strength alloy screw, and the end of the screw is provided with an anti-slip handle. The surface of the handle is knurled to facilitate manual tightening without the need for additional tools. At the same time, an anti-loosening nut is provided at the connection between the fastening screw 431 and the fixing sleeve 43. After tightening, the anti-loosening nut is locked to prevent the screw from loosening due to vibration during long-term use.
[0044] Specifically, when installing the fixing sleeve 43, it is placed on the outer wall of the drainage pipe 3, aligned with the screw hole, and the fastening screw 431 is tightened to make the fixing sleeve 43 fit tightly with the drainage pipe 3. Then, it is locked with the anti-loosening nut. This structure can firmly connect the drainage pipe 3 and the connecting component 44, preventing the drainage pipe 3 from shifting or falling off due to water flow impact or soil settlement, and at the same time facilitating disassembly during subsequent pipe maintenance.
[0045] In one embodiment of this utility model, such as Figures 1-4 As shown, a filter plate 511 is installed on the top of the collection chamber 51.
[0046] It should be noted that the filter plate 511 described in this embodiment is made of stainless steel with filter holes on its surface. It can filter large particles such as fallen leaves and stones without affecting the rapid flow of rainwater into the collection chamber 51. The filter plate 511 and the collection chamber 51 are connected by a detachable snap-fit connection. The snap-fit is made of PP plastic, which is aging resistant and easy to disassemble, making it convenient to regularly remove the filter plate 511 to clean the impurities accumulated on its surface. The filter plate 511 has a baffle edge to prevent impurities from sliding from the edge into the collection chamber 51 when washed by rainwater. In addition, the surface of the filter plate 511 is brushed to reduce the adhesion of impurities and reduce the cleaning frequency.
[0047] It should be understood that the interior of the connecting arm 443 is a hollow structure, and one end of the connecting arm 443 is connected to the connector 444.
[0048] In summary, the masonry retaining wall reinforcement structure of this utility model embodiment has a base 1 cast in the bearing layer of the foundation, and a retaining wall 2 fixed to the base 1 to form an integral whole through the masonry process. The reinforcing ribs 21 enhance the bonding strength between the base 1 and the foundation and disperse lateral pressure. The drainage pipes 3 are staggered and pass through the retaining wall 2, and are inclined to facilitate drainage and prevent backflow. In the filter assembly 4, the support sleeve 41 slides along the guide groove of the drainage pipe 3, the filter head 42 intercepts impurities, the fixing sleeve 43 is fixed to the pipe by the fastening screw 431, and the connecting assembly 44 connects the fixing sleeve 43 and the support sleeve 41, which can drive the filter head 42 to be easily disassembled and assembled. The collection chamber 51 of the dredging assembly 5 collects water after the filter plate 511 filters impurities. The water pump 52 transports the water through the pipe and through the cavity of the connecting arm 443 of the connecting assembly 44 to the drainage pipe 3 to achieve dredging and prevent siltation. This structure enhances the overall resistance to overturning and settlement through the base 1, retaining wall 2, and reinforcing ribs 21, solving the problem of insufficient rigidity of the base 1 in the background technology. The filter component 4 intercepts impurities and is easy to clean, while the dredging component 5 efficiently dredges the pipes, solving the problem of easy blockage and difficult dredging of the drainage system. The fixing sleeve 43 and the fastening screw 431 ensure that the components are firmly connected, solving the problem of easy detachment between the drainage pipe 3 and the reinforcement structure, and ensuring the long-term stability of the retaining wall 2.
[0049] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.
Claims
1. A masonry retaining wall reinforcement structure, characterized in that, It includes a base (1), a retaining wall (2), a drainage pipe (3), a filter assembly (4), and a dredging assembly (5), wherein, The retaining wall (2) is fixedly connected to the top of the base (1), and the multiple drainage pipes (3) are fixedly penetrated through the outer wall of the retaining wall (2); The filter assembly (4) includes a support sleeve (41), a filter head (42), a fixing sleeve (43), and a connecting assembly (44), wherein, The support sleeve (41) is slidably installed on the inner wall of the drainage pipe (3), the filter head (42) is threaded on one end of the support sleeve (41), the fixing sleeve (43) is sleeved on the exposed end of the drainage pipe (3), and the connecting component (44) is provided between the other end of the fixing sleeve (43) and the support sleeve (41), and they are connected through the connecting component (44); The unblocking component (5) is installed on top of the base (1) and connected to the connecting component (44).
2. The masonry retaining wall reinforcement structure according to claim 1, characterized in that, The connecting assembly (44) includes a support arm (441), a support head (442), a connecting arm (443), and a connecting head (444), wherein, One end of one of the multiple support arms (441) is fixedly connected in a circular array to the inner wall of the other end of the fixed sleeve plate (43) and the support sleeve plate (41), and the two ends of the connecting arm (443) are respectively fixedly connected to the other end of the two sets of support arms (441); The connector (444) is fixedly connected to the end of the connecting arm (443).
3. The masonry retaining wall reinforcement structure according to claim 2, characterized in that, The unblocking component (5) includes a collection chamber (51), a water pump (52), a first connecting pipe (53), and a second connecting pipe (54), wherein, The collection chamber (51) and the water pump (52) are both installed on the top of the base (1). A first connecting pipe (53) is provided between the collection chamber (51) and the input end of the water pump (52), and they are connected through the first connecting pipe (53). A second connecting pipe (54) is provided between the output end of the water pump (52) and the connector (444), and they are connected through the second connecting pipe (54).
4. The masonry retaining wall reinforcement structure according to claim 2, characterized in that, The outer wall of the fixed sleeve (43) is threaded with multiple fastening screws (431) in a circumferential array, and the outer wall of the drainage pipe (3) is provided with screw holes that match the fastening screws (431).
5. The masonry retaining wall reinforcement structure according to claim 3, characterized in that, A filter plate (511) is installed on the top of the collection chamber (51).
6. The masonry retaining wall reinforcement structure according to claim 1, characterized in that, The outer wall of the base (1) is fixedly connected with multiple reinforcing ribs (21) at equal intervals.
7. The masonry retaining wall reinforcement structure according to claim 2, characterized in that, The connecting arm (443) has a hollow structure inside, and one end of the connecting arm (443) is connected to the connecting head (444).