Soil retaining structure for side slope road

Abstract

The utility model relates to a soil retaining structure for a side slope road, which is positioned on a side slope surface. Comprising a retaining wall structure arranged on the free side of the slope face of the side slope, a stepped foundation arranged below the retaining wall structure, a drainage cushion layer arranged at the bottom of the stepped foundation, a road structure layer arranged at the top of the retaining wall structure, and filler arranged between the road structure layer and the stepped foundation. The retaining wall structure, the road structure layer, the stepped foundation and the internal filler are organically combined, so that the integrity and the stability of the road structure are enhanced; the soil retaining structure can be used as a whole to reliably bear road surface load and lateral water and soil load and transmit the load to foundation soil below; by means of the overall stable structural design and the good drainage performance, the safety of the soil retaining structure in the normal use process can be guaranteed, the influence on the surrounding environment can be effectively reduced, and the soil retaining structure is comprehensive in function, convenient to construct, economical and practical.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal facilities, in particular to a retaining structure for a slope road. Background Technique

[0002] During the construction of mountain slope road projects, a common design scheme is to fill the slope surface and set a traditional retaining wall structure on the free face. This scheme has a large cross-section of the retaining wall, high requirements for filling materials, a large excavation depth, a large floor area, high construction difficulty, high project cost, and a large impact on the surrounding environment of the mountain. With the development of the economy, the application of the concepts of ecological environmental protection and green low-carbon is becoming increasingly important. In order to more effectively reduce the impact on the surrounding environment of the mountain, reduce the construction difficulty, save project investment, and at the same time ensure the safety of road use and the stability of the slope, making full use of the characteristics of various components, it is necessary to design a retaining structure for a slope road with strong integrity, comprehensive functions, convenient construction, economy and practicality. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to provide a retaining structure for a slope road aiming at the deficiencies of the above-mentioned prior art.

[0004] The technical solution of the utility model to solve the above technical problem is as follows: A retaining structure for a slope road, the retaining structure is located on the slope surface of the slope, and includes a retaining wall structure arranged on the free side of the slope surface of the slope, a stepped foundation arranged under the retaining structure, a drainage cushion layer arranged at the bottom of the stepped foundation, a road structure layer arranged on the top of the retaining structure, and a filler arranged between the road structure layer and the stepped foundation.

[0005] The beneficial effect of the utility model is: The retaining structure for a slope road of the utility model enhances the integrity and stability of the road structure by organically combining the retaining wall structure, the road structure layer, the stepped foundation, and the internal filler; the retaining structure can, as a whole, reliably bear the road surface load and the lateral water and soil load and transfer them to the underlying foundation soil; the overall stable structural design and good drainage performance can ensure the safety of the retaining structure during normal use, can effectively reduce the impact on the surrounding environment, and the retaining structure has comprehensive functions, convenient construction, economy and practicality.

[0006] On the basis of the above technical solution, the utility model can also be improved as follows:

[0007] Further: The retaining wall structure and the stepped foundation are continuously cast to form a whole.

[0008] The beneficial effects of the above further solution are as follows: By continuously casting the retaining wall structure and the stepped foundation into a whole, the retaining wall structure bears the horizontal load, and the stepped foundation bears the vertical load, and the two work together.

[0009] Further: The road structural layer is made of concrete or asphalt material.

[0010] Further: The filler is located inside the retaining structure, and the filler is selected from cohesive soil or foamed lightweight soil.

[0011] The beneficial effects of the above further solution are as follows: The filler is located inside the retaining structure and serves as a transition layer between the road structural layer and the stepped foundation, having a certain bearing capacity and being beneficial to ensuring the overall structural strength.

[0012] Further: The drainage cushion layer is made of graded sand and gravel.

[0013] The beneficial effects of the above further solution are as follows: Using graded sand and gravel can not only serve as a structural cushion layer but also as a drainage channel connecting the high-level slope surface and the low-level slope surface.

[0014] Further: A drainage ditch is arranged on the side of the road structural layer away from the retaining wall structure.

[0015] The beneficial effects of the above further solution are as follows: By arranging the drainage ditch, it can be ensured that the retaining structure will not accumulate water during the rainy season, avoiding water damage.

[0016] Further: The cross-section of the drainage ditch is in an L shape, the drainage ditch is made of plain concrete or reinforced concrete, and the drainage ditch is connected to the drainage cushion layer.

[0017] The beneficial effects of the above further solution are as follows: By effectively connecting the drainage ditch and the drainage cushion layer, it can be ensured that the retaining structure will not accumulate water during the rainy season, avoiding water damage.

[0018] Further: Railings are arranged on the retaining wall structure.

[0019] The beneficial effects of the above further solution are as follows: By arranging the railings, a protective effect can be achieved. Description of the Drawings

[0020] Figure 1 It is a structural schematic diagram of a retaining structure for a slope road according to an embodiment of the present invention.

[0021] In the drawings, the list of components represented by each reference numeral is as follows:

[0022] 1. Retaining wall structure, 2. Stepped foundation, 3. Drainage cushion layer, 4. Internal filler, 5. Drainage ditch, 6. Road structural layer, 7. Railings;

[0023] 001, High slope surface, 002, Retaining structure, 003, Low slope surface. Detailed implementation mode

[0024] The principles and features of the present utility model will be described below in conjunction with the accompanying drawings. The examples given are only used to explain the present utility model and are not intended to limit the scope of the present utility model.

[0025] As Figure 1 shown, a retaining structure for a slope road, the retaining structure 002 is located on the slope surface of the slope, and includes a retaining wall structure 1 arranged on the air-facing side 003 of the slope surface, a stepped foundation 2 arranged below the retaining structure 002, a drainage cushion layer 3 arranged at the bottom of the stepped foundation, a road structure layer 6 arranged on the top of the retaining structure 002, and a filler 4 arranged between the road structure layer 6 and the stepped foundation 2.

[0026] The retaining structure for a slope road of the present utility model combines the retaining wall structure 1, the road structure layer 6, the stepped foundation 2, and the internal filler 4 organically, enhancing the integrity and stability of the road structure; the retaining structure 002 can act as a whole, reliably bear the road surface load and the lateral soil and water load, and transfer them to the underlying foundation soil; the overall stable structural design and good drainage performance can ensure the safety of the retaining structure 002 during normal use, and can effectively reduce the impact on the surrounding environment. The retaining structure 002 has comprehensive functions, convenient construction, and is economical and practical.

[0027] In one or more embodiments of the present utility model, the retaining structure 002 is both an integral road structure to realize the function of the road and a retaining structure with a certain horizontal bearing capacity, and multiple functions can be realized through the integral design.

[0028] It should be noted that in the embodiments of the present utility model, the retaining wall structure 1, the road structure layer 6, the stepped foundation 2, and the internal filler 4 are organically combined, enhancing the integrity and stability of the road structure, and can reduce the cross-section of the retaining wall structure and save the construction site.

[0029] In one or more embodiments of the present utility model, the retaining wall structure 1 and the stepped foundation 2 are continuously cast to form a whole. By continuously casting the retaining wall structure 1 and the stepped foundation 2 to form a whole, the retaining wall structure 1 bears the horizontal load, and the stepped foundation 2 bears the vertical load, and the two work together.

[0030] Here, the retaining wall structure 1 and the stepped foundation 2 can be made of plain concrete structure or reinforced concrete structure according to the height of the air-facing side of the slope, and are the main load-bearing members of the retaining structure, bearing the horizontal load.

[0031] In the embodiments of the present utility model, the retaining wall structure 1 and the stepped foundation 2 form the main load-bearing members of the retaining structure, which can be made of plain concrete structure or reinforced concrete structure. Since the retaining structure 002 is an integral structure, the cross-sectional form of the retaining wall structure 1 can be trapezoidal or rectangular, and the main lateral force it bears comes from the internal filling. When the internal filling is soil, the retaining wall structure 1 needs to check the flexural and shear bearing capacities; when plain concrete is used, the calculation method is designed according to Appendix D of the "Code for Design of Concrete Structures" GB50010-2010 (2015 Edition) for plain concrete structural members; when a reinforced concrete structure is used, the calculation method is designed according to the content of Chapters 6 and 7 of the "Code for Design of Concrete Structures" GB50010-2010 (2015 Edition).

[0032] In the present utility model, the step size of the stepped foundation 2 is generally 1m x 0.5m, which mainly bears the vertical load and generates horizontal frictional resistance in direct contact with the foundation bearing layer. When the retaining height H is relatively large or the soil quality is poor, a reinforced concrete structure can be adopted, and its cross-sectional thickness is determined by checking its flexural and shear bearing capacities. When it is plain concrete, its thickness is recommended to be not less than 1m, and when it is reinforced concrete, the thickness is generally not less than 1 / 8 of its length.

[0033] Optionally, in one or more embodiments of the present utility model, the road structure layer 6 is made of concrete or asphalt material. The road structure layer 6, as the base layer of the road, mainly bears the vertical load on the road and transfers it downward to the internal filling 4. Different materials are selected according to different road grades, and specifically, it can be designed according to relevant road design specifications.

[0034] In one or more embodiments of the present utility model, the filling 4 is located inside the retaining structure 002, and the filling 4 is selected from cohesive soil or foam lightweight soil. The filling 4 is located inside the retaining structure and serves as a transition layer between the road structure layer 6 and the stepped foundation 2, having a certain bearing capacity and being beneficial to ensuring the overall structural strength.

[0035] It should be noted that in practice, when the soil quality of the foundation is good, cohesive soil can be selected for the filling 4, and when the soil quality of the foundation is poor, foam lightweight soil with a certain strength can be selected for the filling 4. In practice, the thickness and material of the filling 4 can affect the overall weight of the retaining structure 002, and thus affect the cross-sectional dimensions of the retaining structure 002, which can be flexibly adjusted according to the site conditions and the properties of the foundation soil.

[0036] In one or more embodiments of the present utility model, the drainage cushion layer 3 is made of graded sand and gravel. Using graded sand and gravel can not only serve as the structural cushion layer 3 but also as a drainage channel connecting the high-level slope surface and the low-level slope surface.

[0037] As a preferred embodiment, when the rainfall in the area where the mountain slope is located is relatively large, drain pipes can be buried in the drainage cushion layer 3 or its thickness can be adjusted to strengthen the drainage measures.

[0038] Here, the thickness of the structural cushion layer 3 can be determined according to the bearing capacity of the foundation soil and the water volume within the slope range. PVC drain pipes can be arranged inside it as needed, and the pipe diameter of the drain pipes is generally 50 - 100 mm; the drainage cushion layer 3 generally uses graded sand and gravel, and different combinations of the particle sizes of the sand and gravel can also produce different drainage effects.

[0039] Optionally, in one or more embodiments of the present invention, a drainage ditch 5 is arranged on one side of the road structure layer 6 away from the retaining wall structure 1. By arranging the drainage ditch, it can be ensured that the retaining structure 002 will not accumulate water during the rainy season, avoiding water damage.

[0040] Specifically, in one or more embodiments of the present invention, the cross-section of the drainage ditch 5 is L-shaped, the drainage ditch 5 is made of plain concrete or reinforced concrete, and the drainage ditch 5 is connected to the drainage cushion layer 3. By effectively connecting the drainage ditch 5 and the drainage cushion layer 3, it can be ensured that the retaining structure 002 will not accumulate water during the rainy season, avoiding water damage. Here, the drainage ditch 5 is located at the lowest point of the high-slope slope surface 001, and its height is different for different slope gradients. In practice, the drainage ditch 5 includes a side wall and a bottom plate. When the height is less than 1.5 m, a plain concrete structure is adopted; when the height is greater than 1.5 m, a reinforced concrete structure is adopted.

[0041] In one or more embodiments of the present invention, a railing 7 is arranged on the retaining wall structure 1. By arranging the railing 7, a protective effect can be achieved.

[0042] Compared with the traditional design of mountain slope road engineering, the advantages of a retaining structure for a slope road in the present invention are as follows:

[0043] 1. The structural components of the present invention can be coordinated and evenly stressed, the structure has good integrity, occupies a small area, reduces the requirements for the construction site of the new road, and has a wider application range; especially for areas with limited site conditions and high environmental protection requirements, the present invention can better solve such problems;

[0044] 2. The present invention has a simple structure and is convenient for construction; the disturbance to the existing slope body during the implementation process is small, and the safety of the mountain slope can be better guaranteed;

[0045] 3. The present invention is provided with fillers inside the retaining structure, which can flexibly adjust the overall weight of the retaining structure and effectively control the additional load on the mountain slope;

[0046] 4. The structural materials and structural forms adopted by the present utility model can be flexibly adjusted according to the actual on-site conditions, being practical and convenient.

[0047] 5. The drainage facilities of the present utility model are arranged flexibly, being safe, reliable and with controllable quality.

[0048] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A retaining structure for a slope road, the retaining structure (002) being located on the slope surface, characterized in that: The invention comprises a retaining wall structure (1) arranged on the empty side (003) of the slope surface, a stepped foundation (2) arranged below the retaining structure (002), a drainage cushion layer (3) arranged at the bottom of the stepped foundation, a road structure layer (6) arranged on the top of the retaining structure (002), and a filler (4) arranged between the road structure layer (6) and the stepped foundation (2).

2. The retaining structure for a slope road according to claim 1, characterized in that: The retaining wall structure (1) and the stepped foundation (2) are continuously cast to form a whole.

3. The retaining structure for a slope road according to claim 1, characterized in that: The road structure layer (6) is made of concrete or asphalt material.

4. The retaining structure for a slope road according to claim 1, characterized in that: The filler (4) is located inside the retaining structure (002), and the filler (4) is made of clay soil or foamed lightweight soil.

5. The retaining structure for a slope road according to claim 1, characterized in that: The drainage cushion layer (3) is made of graded sand and gravel.

6. The retaining structure for a slope road according to claim 1, characterized in that: A drainage ditch (5) is provided on the side of the road structure layer (6) away from the retaining wall structure (1).

7. The retaining structure for a slope road according to claim 6, characterized in that: The cross section of the drainage ditch (5) is L-shaped, the drainage ditch (5) is made of plain concrete or reinforced concrete, and the drainage ditch (5) is connected to the drainage cushion layer (3).

8. The retaining structure for a slope road according to any one of claims 1 to 7, characterized in that: The retaining wall structure (1) is provided with a railing (7).

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