Municipal road retaining wall and construction method thereof

Abstract

The invention relates to the field of municipal retaining walls, in particular to a municipal road retaining wall and a construction method thereof.The municipal road retaining wall comprises a retaining wall body, a retaining wall base and a stone cap top, the retaining wall base is fixed to the bottom of the retaining wall body, the stone cap top is fixed to the top of the retaining wall body, and the retaining wall body is divided into a soil retaining side and a drainage side; the drainage side is close to the pavement; the retaining wall body is divided into a first retaining wall body and a second retaining wall body, the cross section of the first retaining wall body is designed to be in a right trapezoid shape, the cross section of the second retaining wall body is designed to be in an inverted right trapezoid shape, a supporting platform is arranged at the fixing position of the first retaining wall body and the second retaining wall body, and a plurality of supporting anchor rods are fixedly installed on the retaining wall body and obliquely arranged in the soil retaining side direction. The plurality of supporting anchor rods penetrate through the retaining wall main body and are connected with a soil body; one end of the retaining wall base is provided with a retaining wall toe, and the other end of the retaining wall base is provided with a retaining wall heel The retaining wall has the effect of increasing the retaining height of the retaining wall.

Description

Technical Field

[0001] The present application relates to the field of municipal retaining walls, and in particular to a municipal road retaining wall and a construction method thereof. Background Art

[0002] With the advancement of the times and the economy, municipal road construction continues to improve. Retaining walls are an indispensable construction feature in road construction. They are primarily used to prevent soil collapse and landslides behind the walls, maintaining slope or site stability. In scenarios such as mountain development, road construction, and foundation pit excavation, retaining walls can withstand soil pressure and protect surrounding buildings, roads, and other facilities. They are also key structures for ensuring project safety and efficient land use.

[0003] In existing technologies, retaining walls typically consist of a retaining wall body, a retaining wall base, and a stone cap. The retaining wall base is embedded in the ground to maintain lateral stability, while the retaining wall body primarily resists the overall pressure of the soil. The stone cap protects the top of the retaining wall body from direct erosion and weathering.

[0004] Regarding the above-mentioned related technologies, in actual use, if you want to resist higher soil, you need to continuously increase the thickness and height of the retaining wall body. Although this can resist the soil, the base of the retaining wall will bear a greater load, and the lateral stability of the retaining wall is only excellent. In addition, excessively increasing the thickness and height of the retaining wall body also makes the engineering economy of the retaining wall poor. Summary of the Invention

[0005] In order to increase the resistance height of the retaining wall, the present application provides a municipal road retaining wall and a construction method thereof.

[0006] The municipal road retaining wall provided in this application adopts the following technical solution: A municipal road retaining wall comprises a retaining wall body, a retaining wall base and a stone cap, wherein the retaining wall base is fixed to the bottom of the retaining wall body, the stone cap is fixed to the top of the retaining wall body, and the retaining wall body is divided into a retaining side and a drainage side, wherein the retaining side is close to the soil and the drainage side is close to the road surface; The retaining wall body is divided into a first retaining wall and a second retaining wall, the cross-section of the first retaining wall is a right-angled trapezoidal design, the cross-section of the second retaining wall is an inverted right-angled trapezoidal design, the volume of the second retaining wall is larger than the first retaining wall, the right-angled trapezoidal bottom surface of the second retaining wall is fixed to the right-angled trapezoidal top surface of the first retaining wall, a support platform is provided at the fixing point of the first retaining wall and the second retaining wall, the support platform is arranged on the retaining side of the retaining wall body, the retaining wall body is fixedly installed with a plurality of support anchor rods, the plurality of support anchor rods are all inclined toward the retaining side, and the plurality of support anchor rods are all passed through the retaining wall body and connected to the soil; The retaining wall base is buried underground, one end of the retaining wall base is provided with a retaining wall toe, the other end of the retaining wall base is provided with a retaining wall heel, the retaining wall toe faces the drainage side, and the retaining wall heel faces the retaining side.

[0007] By adopting the above technical solution, when resisting soil, the retaining wall base is pre-buried underground, with the retaining wall toe acting as an anti-overturning fulcrum and providing anti-slip resistance. The retaining wall heel extends the anti-overturning lever arm, distributing the soil load. The retaining side of the first retaining wall has a small contact area with the soil, reducing the direct soil pressure it bears. The soil accumulated on the support platform generates a downward gravity force, the horizontal component of which is directed toward the retaining side, effectively adding a "reverse thrust" to the wall, offsetting some of the soil pressure. The second retaining wall has a large height ratio, a gentle slope, and a rigid connection to the foundation at the bottom. This concentrates the remaining soil pressure and the wall's own weight on the foundation, avoiding localized excessive stress. Support anchors also distribute soil pressure. If the soil being resisted is too high, simply increase the right-angled trapezoidal bottom surface of the first retaining wall and the right-angled trapezoidal top surface of the second retaining wall, and increase the number of support anchors according to the increased height. This effectively reduces material loss while increasing the retaining height of the retaining wall.

[0008] Optionally, the retaining wall body is provided with a plurality of drainage pipes, and the plurality of drainage pipes are all passed through the retaining wall body. The drainage pipes connect the retaining side and the drainage side to each other, and the plurality of drainage pipes are all inclined toward the drainage side.

[0009] By adopting this technical solution, the drainage pipe can drain the accumulated water in the soil from the drainage side, thereby reducing the hydrostatic pressure and thus the soil pressure. At the same time, it prevents water seepage from softening the retaining wall body, avoiding seepage damage, ensuring the stability of the retaining wall body and extending its service life.

[0010] Optionally, the retaining wall body is provided with an inverted filter layer and a filter layer, and the inverted filter layer and the filter layer are both covered on the retaining side of the retaining wall body, and the accumulated water in the soil flows through the retaining side, the inverted filter layer, the filter layer, the drainage pipe and the drainage side in sequence.

[0011] By employing this technical solution, the filtration layer effectively prevents fine particles from being lost with seepage water in the retaining wall, thus protecting the structural integrity of the soil. The filtration layer intercepts impurities in the water, preventing clogging of the drainage pipes and ensuring smooth drainage of seepage water. These two layers work together to prevent seepage damage and maintain the stability and safety of the soil and retaining wall at a high altitude.

[0012] Optionally, the retaining wall body is provided with an expansion joint along the vertical direction, the retaining wall base is provided with a settlement joint along the vertical direction, the expansion joint is connected to the settlement joint along the vertical direction, the expansion joint is fixedly filled with an expansion plate, and the settlement joint layer is fixedly filled with a settlement plate.

[0013] By adopting this technical solution, expansion joints relieve deformation stress caused by temperature changes and retaining wall shrinkage, thereby preventing wall cracking. The expansion plates, with their excellent elasticity, durability, and waterproofness, provide space for elastic deformation, preventing the structures on either side of the joint from squeezing or pulling against each other, which could cause cracking. Settlement joints are used to address uneven settlement at the retaining wall base, preventing cracking due to differential settlement. The settlement plates can adapt to settlement and provide strong water-stopping capabilities, preventing water seepage from affecting the retaining wall base.

[0014] Optionally, a supporting protrusion is fixed to the bottom of the retaining wall base.

[0015] By adopting this technical solution, the support protrusions are embedded in the ground, creating anti-slip resistance through the passive earth pressure in front of them, offsetting the forward sliding tendency caused by the earth pressure behind the wall. At the same time, it strengthens the engagement between the retaining wall base and the ground, improving overall anti-slip stability.

[0016] Optionally, a grouting port is opened at one end of the support anchor rod, and the grouting port passes through the support anchor rod along the length direction of the support anchor rod. A closing gasket is fixedly installed at one end of the grouting port, and the outer diameter of the closing gasket is larger than the outer diameter of the support anchor rod.

[0017] By adopting the above technical solution, the supporting anchor rods can cooperate with the supporting platform to balance the soil pressure, so that the retaining wall can still maintain its stability when it is set higher.

[0018] Optionally, a rotary drill bit is fixedly mounted on one end of the support anchor rod. By adopting the above technical solution, a rotating drill bit can be used to open an anchor hole in the retaining wall body for the support anchor rod. As the support anchor rod is inserted deeper, a nut is used to fix the sealing gasket, pre-fixing the support anchor rod inside the retaining wall body. Finally, concrete slurry is injected into the grouting port to fill the anchor hole, thereby securing the support anchor rod.

[0019] Optionally, the top of the stone cap is inclined toward the drainage side.

[0020] By adopting the above technical solution, rainwater falling on the top of the stone cap can flow into the drainage side along the inclined direction, thereby reducing the effect of water deposition inside the soil.

[0021] Optionally, a plurality of fixed steel bars are embedded in the toe and heel of the retaining wall along the horizontal direction.

[0022] By adopting the above technical solution, the toe and heel of the retaining wall can support the retaining wall more stably, so that it can more effectively cope with the lateral load of the soil on the retaining wall as the retaining wall increases.

[0023] In addition, the present application also discloses a municipal road retaining wall construction method, which is implemented through the above-mentioned municipal road retaining wall.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. When resisting the soil, the base of the retaining wall is first pre-buried in the ground, and the toe of the retaining wall acts as an anti-overturning fulcrum to provide anti-sliding resistance. The heel of the retaining wall extends the anti-overturning lever arm to disperse the soil load. The retaining side of the first retaining wall has a small contact area with the soil, which can reduce the direct soil pressure. The soil piled on the support platform will generate downward gravity, and its horizontal component is directed to the retaining side, which is equivalent to adding a "reverse thrust" to the wall to offset part of the soil pressure. The second retaining wall has a large height ratio, a gentle slope, and a rigid connection with the foundation at the bottom, which can concentrate the remaining soil pressure and the deadweight of the wall to the foundation to avoid excessive local force. In addition, the support anchor rods can also share the soil pressure. If the soil to be resisted is too high, it is only necessary to increase the right-angled trapezoidal bottom surface of the first retaining wall and the right-angled trapezoidal top surface of the second retaining wall, and increase the number of support anchor rods according to the increased height. It can effectively reduce material loss while increasing the resisting height of the retaining wall; 2. The filtration layer effectively prevents fine particles from being lost with seepage water in the retaining wall, protecting the structural integrity of the soil. The filtration layer focuses on intercepting impurities in the water, preventing clogging of the drainage pipes and ensuring smooth drainage of seepage water. The two layers work together to prevent seepage damage and maintain the stability and safety of the soil and retaining wall at a higher height. 3. Make the retaining wall toe and heel support the retaining wall more stably, so that it can more effectively cope with the lateral load of the soil on the retaining wall as the retaining wall increases. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an overall schematic diagram of the municipal road retaining wall in Example 1 of the present application.

[0026] Figure 2 It is a side schematic diagram of the municipal road retaining wall in Example 1 of the present application.

[0027] Figure 3 This is a schematic diagram of the retaining wall body in Example 1 of the present application.

[0028] Figure 4 This is a schematic diagram of the installation of the drainage pipe and support anchor rod in Example 1 of the present application.

[0029] Figure 5 It is a schematic diagram of the expansion joint and settlement joint in Example 1 of the present application.

[0030] Figure 6 yes Figure 5 An enlarged schematic diagram of part A.

[0031] Figure 7 yes Figure 5 An enlarged schematic diagram of part B.

[0032] Figure 8 This is a schematic diagram of the retaining wall base in Example 1 of the present application.

[0033] Figure 9 This is a schematic diagram of the installation of steel bars in Example 1 of the present application.

[0034] Figure 10 This is a schematic diagram of the stone cap roof in Example 1 of the present application.

[0035] Figure 11 This is a schematic diagram of the installation of the support anchor rod in Example 2 of the present application.

[0036] Figure 12 This is a schematic diagram of the support anchor rod in Example 2 of the present application.

[0037] Figure 13 This is a schematic diagram of the municipal road retaining wall construction method in Example 3 of the present application.

[0038] Explanation of the accompanying symbols: 1. Retaining wall body; 101. Retaining side; 102. Drainage side; 103. Support platform; 104. Expansion joint; 105. Settlement joint; 11. First retaining wall; 12. Second retaining wall; 13. Support anchor rod; 131. Rotary drill bit; 132. Anchor rod hole; 133. Grouting hole; 134. Closing gasket; 14. Drain pipe; 15. Filter layer; 16. Filter layer; 17. Expansion plate; 18. Settlement plate; 2. Retaining wall base; 21. Retaining wall toe; 22. Retaining wall heel; 23. Fixed steel bar; 24. Support protrusion; 3. Stone cap top. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-13 This application is described in further detail.

[0040] Example 1: Example 1 of the present application discloses a municipal road retaining wall, referring to Figure 1 and Figure 2 The municipal road retaining wall comprises a retaining wall body 1, a retaining wall base 2, and a stone cap 3. The retaining wall body 1 has a retaining side 101 near the soil, which is divided into a retaining side 101 and a drainage side 102. The retaining side 101 near the soil provides contact resistance to the soil. The drainage side 102 near the road is used to drain water from the soil.

[0041] Reference Figure 3The retaining wall body 1 is divided into a first retaining wall 11 and a second retaining wall 12. The first retaining wall 11 is designed as a right-angled trapezoid, and the second retaining wall is designed as an inverted right-angled trapezoid. The volume of the second retaining wall 12 is larger than that of the first retaining wall 11. One end of the first retaining wall 11 and the second retaining wall 12 are flush with each other, and the first retaining wall 11 is fixed to the top of the second retaining wall 12. A support platform 103 is provided at the fixing point of the first retaining wall 11 and the second retaining wall 12, and the support platform 103 is arranged on the retaining side 101 of the retaining wall body 1. The support platform 103 will accumulate soil, and the accumulated soil will generate gravity toward the ground, and its horizontal component force is directed to the retaining side 101, which is equivalent to adding a "reverse thrust" to the wall body, offsetting part of the soil pressure, thereby ensuring the stability of the retaining wall. In addition, when resisting the soil, the retaining side 101 of the first retaining wall 11 has a small contact area with the soil, which can reduce the direct soil pressure. The second retaining wall 12 has a large height, a gentle slope, and a rigid connection to the foundation at its base. This allows the remaining earth pressure and the wall's own weight to be concentrated underground, preventing excessive local stress. The three-stage load-bearing design allows the retaining wall to adapt to higher soil heights.

[0042] Reference Figure 4 The retaining wall body 1 is fixedly installed with a number of support anchor rods 13, and the several support anchor rods 13 are all inclined toward the bottom of the retaining wall body 1, and the several support anchor rods 13 are all passed through the retaining wall body 1. One end of the support anchor rod 13 is fixed to the drainage side of the retaining wall body, and the other end of the support anchor rod 13 is inserted into the soil. The support anchor rod 13 can also share the soil pressure. If the soil to be resisted is too high, it is only necessary to increase the right-angled trapezoidal bottom surface of the first retaining wall 11 and the right-angled trapezoidal top surface of the second retaining wall 12, and increase the number of support anchor rods 13 according to the increased height. This effectively reduces material loss while increasing the resisting height of the retaining wall.

[0043] Reference Figure 4 A plurality of drainage pipes 14 are provided in the retaining wall body 1, and the plurality of drainage pipes 14 are provided in the first retaining wall 11 or the second retaining wall 12, so that the retaining side 101 and the drainage side 102 are interconnected. The plurality of drainage pipes 14 are all inclined toward the drainage side 102. The retaining side 101 of the retaining wall body 1 is provided with a filter layer 15 and a filter layer 16. The accumulated water in the soil flows through the retaining side 101, the filter layer 15, the filter layer 16, the drainage pipe 14 and the drainage side 102 in sequence. The filter layer 15 is composed of sand and gravel, which can allow the accumulated water to pass through while blocking the loss of fine fill particles, thereby protecting the structural integrity of the soil. The filter layer 16 is composed of geotextile and fine sand, which is used to intercept impurities in the accumulated water, prevent congestion in the drainage pipe 14, and ensure smooth drainage. The two work together to avoid seepage damage and maintain the stability and safety of the soil and retaining wall at a higher height.

[0044] Reference Figure 5 and Figure 6 The retaining wall body 1 is vertically provided with expansion joints 104. These joints relieve deformation stresses caused by temperature fluctuations and retaining wall shrinkage, thereby preventing cracking. Expansion joints 104 are fixedly filled with expansion plates 17, which consist of foamed polyethylene sheets coated with a waterproof colloid. These plates offer excellent elasticity, durability, and waterproof properties, providing space for elastic deformation and preventing cracking caused by compression or tension between the structures on either side of the joint.

[0045] Reference Figure 7 The retaining wall base 2 is vertically provided with a settlement joint 105, to which the expansion joint 104 is vertically connected. This joint 105 can accommodate uneven settlement of the retaining wall base 2 and prevent structural cracking due to differential settlement. Settlement plates 18 are fixedly placed within the settlement joint 105. These plates are made of asphalt sheets coated with a waterproof colloid. These plates can accommodate settlement and provide strong water-stopping capabilities, preventing structural movement on either side of the joint caused by uneven settlement.

[0046] Reference Figure 8 and Figure 9 The retaining wall base 2 is fixed to the bottom of the retaining wall body 1, and the retaining wall base 2 is buried underground. A retaining wall toe 21 is provided at one end of the retaining wall base 2, and the retaining wall toe 21 faces the drainage side 102, and the retaining wall toe 21 is designed in the shape of a triangular prism. The retaining wall toe 21 can act as an anti-overturning fulcrum and provide anti-slip resistance. A retaining wall heel 22 is provided at the other end of the retaining wall base 2, and the retaining wall heel 22 faces the retaining side 101, and the retaining wall heel 22 is designed in the shape of a rectangular parallelepiped. The retaining wall heel 22 disperses the soil load by extending the anti-overturning lever arm. The retaining wall toe 21 and the retaining wall heel 22 are both made of cement. After hardening, the cement not only has good hardness, but also has good impermeability and frost resistance. It can resist the infiltration of groundwater and prevent accumulated water from eroding the foundation under the retaining wall toe 21 and the retaining wall heel 22, thereby extending the service life of the retaining wall. Several fixed steel bars 23 are embedded in the retaining wall toe 21 and the retaining wall heel 22 in the horizontal direction. The embedding of the fixed steel bars 23 makes the structure of the retaining wall toe 21 and the retaining wall heel 22 more stable, so that it can more effectively cope with the lateral load of the soil on the retaining wall as the retaining wall increases.

[0047] Reference Figure 8 and Figure 9 The retaining wall base 2 is fixed with a support protrusion 24 at the bottom. The support protrusion 24 is embedded in the ground and forms an anti-slip resistance through soil pressure, offsetting the forward sliding tendency of the soil mass caused by the soil pressure behind the wall. At the same time, it strengthens the bite between the retaining wall base 2 and the ground, improving the overall anti-slip stability.

[0048] Reference Figure 10A stone cap 3 is fixed to the top of the retaining wall body 1. The stone cap 3 is placed on top of the first retaining wall 11. Furthermore, the top of the stone cap 3 is tilted toward the drainage side 102. This tilt guides rainwater from the top of the stone cap 3 to the drainage side 102, preventing it from eroding the wall and causing weathering or soil erosion. The stone cap 3 also increases the weight of the top, enhancing the overall anti-overturning capability.

[0049] The implementation principle of a municipal road retaining wall and its construction method in the embodiment of the present application is as follows: when resisting higher soil, the retaining wall toe 21 acts as an anti-overturning fulcrum and provides anti-slip resistance. The retaining wall heel 22 extends the anti-overturning lever arm and distributes the soil load. The retaining side 101 of the first retaining wall 11 has a small contact area with the soil, which can reduce the direct soil pressure. The soil accumulated on the support platform 103 generates a downward gravity, the horizontal component of which is directed toward the retaining side 101, which is equivalent to adding a "reverse thrust" to the wall, offsetting some of the soil pressure. The second retaining wall 12 has a large height, a gentle slope, and a rigid connection to the foundation at the bottom, which can concentrate the remaining soil pressure and the wall's own weight to the ground, avoiding localized excessive stress. In addition, the support anchors 13 can also distribute the soil pressure, increasing the retaining wall's resistance height. If the soil to be resisted increases, it is only necessary to extend the support platform 103 and increase the height of the first retaining wall 11, and increase the number of support anchors 13 according to the increased height. It can increase the resistance height of the retaining wall with less material consumption.

[0050] Example 2: Example 2 of the present application discloses a support anchor rod 13 for the municipal road retaining wall described in Example 1, including the following technical features: Reference Figure 11 and Figure 12 A rotary drill bit 131 is fixedly mounted on one end of the support anchor rod 13, and an anchor hole 132 can be opened on the retaining wall body 1 by the rotary drill bit 131. The anchor hole 132 is used for placing the support anchor rod 13. A grouting port is opened on one end of the support anchor rod 13, and the grouting port runs through the support anchor rod 13 along the length direction of the support anchor rod 13. A closed gasket 134 is fixedly mounted on one end of the grouting port, and the outer diameter of the closed gasket 134 is larger than the outer diameter of the anchor hole 132. As the support anchor rod 13 penetrates into the anchor hole 132, the closed gasket 134 is installed by a nut, so that the support anchor rod 13 is pre-fixed to the retaining wall body 1. Finally, concrete slurry is filled into the grouting port, and after the slurry cools, the effect of fixing the support anchor rod 13 is achieved. This allows the support anchor rod 13 to work with the support platform 103 to balance the soil pressure, so that the retaining wall can still maintain its stability when it is set higher.

[0051] Example 3: Example 3 of the present application discloses a method for constructing a municipal road retaining wall, which is implemented by the municipal road retaining wall described in Example 1 and includes the following technical features: Reference Figure 13 The first step is pre-construction. Based on the size and height of the soil, the retaining wall height and range lines are preset, ensuring that the retaining wall construction area follows these lines. Obstacles, loose soil, and weeds within the preset range are removed, drainage ditches are created, and construction materials are prepared. This lays the foundation for subsequent construction.

[0052] The second step is to excavate the foundation pit and conduct a bearing capacity test to maintain the overall stability of the retaining wall.

[0053] The third step is to build the retaining wall base 2 and the retaining wall body 1. The retaining wall base 2 and the retaining wall body 1 are cast together to increase the stability of the retaining wall, and installation holes for the drainage pipe 14 and the support anchor rod 13 are preset during the construction process.

[0054] In the fourth step, the expansion joint 104 and the settlement joint 105 are opened, and the expansion plate 17 and the settlement plate 18 are buried in the expansion joint 104 and the settlement joint 105 in sequence.

[0055] The fifth step is to construct the filter layer 16 and the filter layer 15. The filter layer 16 is set first. The filter layer 16 is attached to the retaining side 101 of the retaining wall, and then the filter layer 16 is set.

[0056] The sixth step is to install the support anchor rod 13. First, the preset installation hole is drilled again by the rotating drill bit 131 at one end of the support anchor rod 13 to form the anchor rod hole 132. Then, the anchor rod is passed through the anchor rod hole 132 and pre-fixed by the closing gasket 134. Finally, concrete slurry is filled from the grouting port to fill the anchor rod hole 132 densely.

[0057] In the seventh step, the stone cap top 3 is cast and constructed so that the stone cap top 3 is completely covered on the top of the retaining wall body 1.

[0058] The eighth step is to level and compact the soil in the foundation pit by backfilling the clay and sand and gravel in a layered compaction method, and then compacting it with a small compactor.

[0059] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A municipal road retaining wall, characterized by: The invention comprises a retaining wall body (1), a retaining wall base (2) and a stone cap (3), wherein the retaining wall base (2) is fixed to the bottom of the retaining wall body (1), and the stone cap (3) is fixed to the top of the retaining wall body (1); the retaining wall body (1) is divided into a retaining side (101) and a drainage side (102), wherein the retaining side (101) is close to the soil, and the drainage side (102) is close to the road surface; The retaining wall body (1) is divided into a first retaining wall (11) and a second retaining wall (12), the cross section of the first retaining wall (11) is designed as a right-angled trapezoid, the cross section of the second retaining wall (12) is designed as an inverted right-angled trapezoid, the volume of the second retaining wall (12) is larger than that of the first retaining wall (11), the right-angled trapezoid bottom surface of the second retaining wall (12) is fixed to the right-angled trapezoid top surface of the first retaining wall (11), a support platform (103) is provided at the fixing position of the first retaining wall (11) and the second retaining wall (12), the support platform (103) is arranged on the retaining side (101) of the retaining wall body (1), the retaining wall body (1) is fixedly installed with a plurality of support anchor rods (13), the plurality of support anchor rods (13) are all inclined toward the retaining side (101), and the plurality of support anchor rods (13) are all passed through the retaining wall body (1) and connected to the soil; The retaining wall base (2) is buried underground, one end of the retaining wall base (2) is provided with a retaining wall toe (21), the other end of the retaining wall base (2) is provided with a retaining wall heel (22), the retaining wall toe (21) faces the drainage side (102), and the retaining wall heel (22) faces the retaining side (101).

2. A municipal road retaining wall according to claim 1, characterized in that: The retaining wall body (1) is provided with a plurality of drainage pipes (14), and the plurality of drainage pipes (14) are all arranged through the retaining wall body (1). The drainage pipes (14) enable the retaining side (101) and the drainage side (102) to communicate with each other, and the plurality of drainage pipes (14) are all arranged obliquely toward the drainage side (102).

3. The municipal road retaining wall according to claim 1, characterized in that: The retaining wall body (1) is provided with an inverted filter layer (15) and a filter layer (16), and the inverted filter layer (15) and the filter layer (16) are both covered on the retaining side (101) of the retaining wall body (1), and the accumulated water in the soil flows sequentially through the retaining side (101), the inverted filter layer (15), the filter layer (16), the drainage pipe (14), and the drainage side (102).

4. The municipal road retaining wall according to claim 1, characterized in that: The retaining wall body (1) is provided with an expansion joint (104) in the vertical direction, the retaining wall base (2) is provided with a settlement joint (105) in the vertical direction, the expansion joint (104) is connected to the settlement joint (105) in the vertical direction, the expansion joint (104) is fixedly filled with an expansion plate (17), and the settlement joint (105) is fixedly filled with a settlement plate (18).

5. The municipal road retaining wall according to claim 1, characterized in that: A supporting protrusion (24) is fixed to the bottom of the retaining wall base (2).

6. The municipal road retaining wall according to claim 1, characterized in that: A grouting port is provided at one end of the support anchor rod (13), and the grouting port penetrates the support anchor rod (13) along the length direction of the support anchor rod (13). A closing gasket (134) is fixedly installed at one end of the grouting port, and the outer diameter of the closing gasket (134) is larger than the outer diameter of the support anchor rod (13).

7. The municipal road retaining wall according to claim 6, characterized in that: A rotary drill bit (131) is fixedly mounted on one end of the support anchor rod (13).

8. The municipal road retaining wall according to claim 1, characterized in that: The top of the stone cap roof (3) is tilted toward the drainage side (102).

9. The municipal road retaining wall according to claim 1, characterized in that: A plurality of fixed steel bars (23) are embedded in the retaining wall toe (21) and the retaining wall heel (22) along the horizontal direction.

10. A method for constructing a municipal road retaining wall, characterized by: The method is implemented by using a municipal road retaining wall as described in any one of claims 1-9.

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