Drainage ditch structure built in combination with retaining wall

Abstract

The utility model discloses a drainage ditch structure built in combination with a retaining wall, which is built between a road side provided with a road side ditch and a slope body, and comprises a drainage ditch and a rainwater pipe, the retaining wall comprises an upper wall body and a lower wall body, the upper wall body is arranged above the side end of the lower wall body, the top of the lower wall body is provided with a balance weight platform, and the balance weight platform, the wall back of the upper wall body and a side slope form a rock falling pit of an inclined groove-shaped structure; the drainage ditch is arranged above the lower wall body in the road direction and located in the rockfall pit. The rainwater pipe is arranged in the lower wall body, one end of the rainwater pipe is connected with the drainage ditch, and the other end of the rainwater pipe is connected to the roadside ditch. The retaining wall, the rockfall pit and the drainage ditch are combined into a whole, the safety and the stability are better, the influence of geological disasters on road traffic safety is reduced, the durability is good, the later maintenance is relatively simple, and the construction cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of road engineering, in particular to a drainage ditch structure combined with the construction of a retaining wall. Background Technique

[0002] During the construction of road projects, the treatment of geological environment is quite common. Generally, the prevention and control of falling rocks, collapses and dangerous rocks are mainly considered from four aspects: removing dangerous rocks, strengthening dangerous rocks, intercepting falling rocks and collapses, and shielding buildings. Among them, intercepting dangerous rocks, as a passive prevention method, is generally used in the construction of projects such as highways and railways. Common intercepting methods include: falling rock platforms, falling rock pits, rock retaining walls, rock retaining nets, rock retaining dikes, etc.

[0003] Due to the limited anti-impact ability of general rigid rock retaining structures, the cross-sectional size is increased by backfilling the wall to increase the system's anti-impact ability, which has the disadvantages of large floor area, many limiting conditions, and large investment, and is only applicable to gentle slopes and places with large site spaces. At the same time, surface water and groundwater have a strong corrosive effect on the slope retaining wall, and there are relatively large problems with the safety and durability of the retaining wall. Content of the Utility Model

[0004] The purpose of the utility model is to provide a drainage ditch structure combined with the construction of a retaining wall, which combines a falling rock pit, a drainage ditch and a retaining wall for construction to improve the durability of the retaining wall and the safety of dangerous rock prevention and control. To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model discloses a drainage ditch structure combined with the construction of a retaining wall, which is built between the side of a road provided with a roadside ditch and a slope body, and includes: a drainage ditch and a rainwater pipe.

[0006] The retaining wall includes: an upper wall body and a lower wall body. The upper wall body is arranged above the side end of the lower wall body. A balancing platform is arranged at the top of the lower wall body. The balancing platform and the back of the upper wall body and the slope body form a falling rock pit with an inclined groove-shaped structure.

[0007] The drainage ditch is arranged above the lower wall body along the road direction and is located in the falling rock pit.

[0008] The rainwater pipe is arranged inside the wall body of the lower wall body, and one end of it is connected to the drainage ditch, and the other end is connected to the roadside ditch.

[0009] Further, a drainage ditch cover plate is arranged above the drainage ditch, and the height of the drainage ditch after covering the drainage ditch cover plate is the same as that of the balancing platform.

[0010] Preferably, the drainage ditch cover plate is fixed above the drainage ditch by means of bolt connection.

[0011] Preferably, the drain cover plate is an elastic PET cover plate.

[0012] Preferably, the retaining wall is a gravity retaining wall, and the upper wall body and the lower wall body are filled with concrete; the counterweight platform is filled with sand and gravel.

[0013] Furthermore, a drain sand sedimentation tank and a roadside ditch sand sedimentation tank are respectively arranged below the drainage ditch and the roadside ditch.

[0014] Furthermore, a buffer layer is arranged on the back of the upper wall body to reduce the bouncing height of falling rocks.

[0015] Preferably, the buffer layer is a polyurethane foam layer.

[0016] Furthermore, the outside of the buffer layer is wrapped by a wire mesh, and the wire mesh is fixed by rivets.

[0017] Preferably, the rainwater pipe is a galvanized steel pipe with a transverse slope of 3 - 5%.

[0018] After adopting the above technical solution, the utility model has the following effects:

[0019] 1. The utility model combines the construction of the rockfall pit, the drainage ditch and the retaining wall, which can use local materials and construct synchronously. While having good integrity, it improves the durability of the retaining wall and the safety of dangerous rock prevention and control. At the same time, it saves the project cost and coordinates the problems existing in construction and operation.

[0020] 2. The utility model adopts a gravity retaining wall with a steep wall surface and a backward - inclined back of the lower wall body, which can reduce the wall height and the amount of foundation excavation. At the same time, due to the large accommodation space above the counterweight platform, it can be used to set up a rockfall pit to intercept the collapsed falling rocks.

[0021] 3. The utility model increases the service life of the retaining wall by setting a drainage ditch to evacuate the rainwater on the slope body and the top of the wall. At the same time, it can reduce the lateral space of the road used for setting the drainage ditch, the retaining wall and the rockfall pit, and has a good land intensive effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic cross - sectional structure diagram of the utility model.

[0023] Main component symbols:

[0024] 1: Retaining wall, 11: Upper wall body, 12: Lower wall body, 13: Counterweight platform, 2: Buffer layer, 21: Wire mesh, 22: Rivet, 3: Slope body, 4: Rockfall pit, 5: Drainage ditch, 51: Drain cover plate, 52: Drain sand sedimentation tank, 6: Rainwater pipe, 7: Rainwater pipe joint, 8: Roadside ditch, 81: Roadside ditch cover plate, 82: Roadside ditch sand sedimentation tank. Detailed implementation manners

[0025] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0026] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0027] As Figure 1 shown, the present utility model discloses a drainage ditch structure combined with the construction of a retaining wall, which is constructed between the side of a road provided with a roadside ditch 8 and a slope 3, and includes: a drainage ditch 5 and a rainwater pipe 6.

[0028] The retaining wall 1 includes: an upper wall body 11 and a lower wall body 12. The upper wall body 11 is arranged above the side end of the lower wall body 12. A balancing platform 13 is arranged at the top of the lower wall body 12. The balancing platform 13 and the back wall of the upper wall body 11 and the slope 3 form a falling stone pit 4 with an inclined groove-like structure.

[0029] In this embodiment, the depth of the falling stone pit 4 is based on the maximum height of the stone jumping on the stone-facing slope of the interception building plus a safety value of 0.5 - 1.0 m.

[0030] The drainage ditch 5 is arranged above the lower wall body 12 along the road direction and is located within the falling stone pit 4.

[0031] The rainwater pipe 6 is arranged inside the wall body of the lower wall body 12, and one end of it is connected to the drainage ditch 5, and the other end is connected to the roadside ditch 8. In this embodiment, the drainage ditch 5 drains the rainwater on the top of the retaining wall 1 and the slope 3 into the roadside ditch 8 through the rainwater pipe 6.

[0032] Moreover, in this embodiment, the rainwater pipe 6 is a galvanized steel pipe with a transverse slope of 3 - 5%, and the direction is changed through an arc-shaped rainwater pipe joint 7 inside the lower wall body 12, and the rainwater pipe 6 is also arranged every 10 m along the road direction inside the lower wall body 12.

[0033] In addition, in this embodiment, the drainage ditch 5 is a covered ditch. A drainage ditch cover 51 is arranged above the drainage ditch 5. The height of the drainage ditch 5 after covering the drainage ditch cover 51 is the same as that of the balancing platform 13. The drainage ditch cover 51 is fixed above the drainage ditch 5 by means of bolt connection. And the drainage ditch cover 51 is an elastic PET cover.

[0034] Secondly, a grit chamber 52 is provided below the drainage ditch 5, and a roadside ditch grit chamber 82 is also provided below the roadside ditch 8 to collect waste materials and gravel, and facilitate later maintenance.

[0035] In this embodiment, the retaining wall 1 is a gravity retaining wall, and the upper wall body 11 and the lower wall body 12 are filled with concrete; the counterweight platform 13 is filled with sand and gravel.

[0036] Among them, in this embodiment, a buffer layer 2 is further provided on the back of the upper wall body 11 to reduce the bouncing height of falling stones. Among them, the buffer layer 2 is a polyurethane foam layer, and the outside of the buffer layer 2 is wrapped by a wire mesh 21, and the wire mesh 21 is fixed by rivets 22.

[0037] The thickness of the buffer layer 2 is determined according to the maximum possible depth of the falling stones sinking into the buffer layer 2, and the allowable space at the layout position of the retaining wall 1 and the economy of the structural system are comprehensively considered.

[0038] The above is only a preferred specific embodiment of the present invention. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A drainage ditch structure combined with a retaining wall, constructed between the side of a road provided with a roadside ditch (8) and a slope (3), characterized in that: include: Gutters (5) and storm drains (6); The retaining wall (1) comprises: an upper wall (11) and a lower wall (12); the upper wall (11) is arranged above the side end of the lower wall (12); a counterweight platform (13) is arranged on the top of the lower wall (12); the counterweight platform (13) forms a rockfall pit (4) with an oblique groove-shaped structure together with the back of the upper wall (11) and the slope (3); The drainage ditch (5) is arranged above the lower wall (12) along the road direction and is located in the rockfall pit (4); The rainwater pipe (6) is arranged inside the wall of the lower wall (12), and one end of the rainwater pipe is connected to the drainage ditch (5), and the other end is connected to the roadside ditch (8).

2. A drainage ditch structure combined with retaining wall construction as claimed in claim 1, characterized in that: A drainage ditch cover plate (51) is arranged above the drainage ditch (5); the height of the drainage ditch (5) after being covered with the drainage ditch cover plate (51) is the same as that of the weighing platform (13).

3. A drainage ditch structure combined with retaining wall construction as claimed in claim 2, characterized in that: The drainage ditch cover plate (51) is fixed above the drainage ditch (5) by means of bolt connection.

4. A drainage ditch structure combined with retaining wall construction as claimed in claim 2 or 3, characterized in that: The drainage ditch cover plate (51) is an elastic PET cover plate.

5. The drainage ditch structure combined with retaining wall construction as claimed in claim 1, characterized in that: The retaining wall (1) is a gravity retaining wall; the upper wall (11) and the lower wall (12) are filled with concrete; and the counterweight platform (13) is filled with sand and gravel.

6. The drainage ditch structure combined with retaining wall construction as claimed in claim 1, characterized in that: A drainage ditch grit chamber (52) and a roadside ditch grit chamber (82) are respectively arranged below the drainage ditch (5) and the roadside ditch (8).

7. The drainage ditch structure combined with retaining wall construction as claimed in claim 1, characterized in that: The back of the upper wall (11) is provided with a buffer layer (2) to reduce the bouncing height of falling rocks.

8. A drainage ditch structure combined with retaining wall construction as claimed in claim 7, characterized in that: The buffer layer (2) is a polyurethane foam layer.

9. The drainage ditch structure combined with retaining wall construction as claimed in claim 7, characterized in that: The buffer layer (2) is externally wrapped by a wire mesh (21), and the wire mesh (21) is fixed by rivets (22).

10. The drainage ditch structure combined with retaining wall construction as claimed in claim 1, characterized in that: The rainwater pipe (6) is a galvanized steel pipe with a transverse slope of 3-5%.

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