A type of slope protection for high embankments consisting of multi-stage stepped precast concrete retaining walls.

Abstract

This utility model belongs to the field of civil engineering technology, and particularly relates to a slope protection method for high embankment composed of multi-level stepped precast concrete retaining walls. It includes precast gravity retaining walls, backfill stone, and reverse filter geotextile. The reverse filter geotextile is laid on the original soil surface, and the backfill stone is laid on the reverse filter geotextile. The precast gravity retaining walls are set on the backfill stone and include at least two sets of retaining wall structures. The retaining wall structures are distributed in a stepped manner on the backfill stone. The small precast gravity retaining walls used in this utility model are precast concrete, which can be poured outside the construction site and then transported to the construction site for on-site installation and use. This can shorten the straight-line construction period of concrete pouring and speed up the construction process. In addition, the stepped small precast gravity retaining walls can reduce the amount of concrete used by about 50% and have the advantage of occupying less space on the slope.

Description

Technical Field

[0001] This utility model belongs to the field of civil engineering technology, and in particular relates to a slope protection form for high slopes with embankment composed of multi-level stepped precast concrete retaining walls. Background Technology

[0002] A retaining wall is a structure that supports roadbed fill or hillside soil and prevents deformation and instability of the fill or soil. Retaining walls are widely used in civil engineering projects such as water conservancy, landscape engineering, road engineering, and building construction, and come in various forms. In site leveling projects, to meet the safety factor requirements in regulations, high slopes with fill are usually constructed using multi-level gentle slopes, which require a large amount of space; alternatively, a single-level concrete retaining wall can be used, which involves long pouring times and large concrete usage, and is difficult to construct during the rainy season.

[0003] This utility model designs a slope protection method for high slopes with embankment composed of multi-level stepped precast concrete retaining walls to solve the above problems. Utility Model Content

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A type of slope protection for embankment high slope composed of multi-stage stepped precast concrete retaining walls includes precast gravity retaining walls, backfill stone and reverse filter geotextile. The reverse filter geotextile is laid on the original soil surface, the backfill stone is laid on the reverse filter geotextile, and the precast gravity retaining walls are set on the backfill stone. The precast gravity retaining walls include at least two sets of retaining wall structures, which are distributed in a stepped manner on the backfill stone.

[0006] As a preferred embodiment, the bottom of the lowest retaining wall structure is in contact with the ground, and the inner side of the lowest retaining wall structure is in contact with the backfill stone. The bottom and inner side of the remaining retaining wall structures are in contact with the backfill stone.

[0007] As a preferred option, the precast gravity retaining wall includes three sets of retaining wall structures: a foundation retaining wall, an intermediate retaining wall, and a top retaining wall. The foundation retaining wall, the intermediate retaining wall, and the top retaining wall are arranged in a stepped manner from bottom to top on the backfill stone. The bottom of the foundation retaining wall is in contact with the ground, and the inner side of the foundation retaining wall is in contact with the backfill stone. The bottom and inner side of the intermediate retaining wall and the top retaining wall are in contact with the backfill stone.

[0008] As a preferred option, reverse filter geotextiles are used to separate backfill stone debris from the original soil.

[0009] As a preferred option, the retaining wall structure is equipped with a drainage pipe that connects to the backfill stone.

[0010] Compared with existing technologies, the advantages of this utility model are:

[0011] 1. The small precast gravity retaining wall used in this utility model is made of precast concrete, which can be poured outside the construction site and then transported to the construction site for installation and use. This can shorten the straight-line construction period of concrete pouring and speed up the construction process. In addition, the stepped small precast gravity retaining wall can reduce the amount of concrete used by about 50% and has the advantage of occupying less space on the slope. Attached Figure Description

[0012] Figure 1 This is a cross-sectional schematic diagram of the present invention.

[0013] The labels in the diagram are as follows: 1. Precast gravity retaining wall; 11. Foundation retaining wall; 12. Intermediate retaining wall; 13. Top retaining wall; 2. Backfill stone; 3. Reverse filter geotextile; 4. Original soil. Detailed Implementation

[0014] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following embodiments or drawings are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0015] A type of slope protection for high embankments consisting of multi-stage stepped precast concrete retaining walls, such as... Figure 1 As shown, it includes a precast gravity retaining wall 1, backfill stone 2, and a reverse filter geotextile 3. The reverse filter geotextile 3 is laid on the surface of the original soil 4, the backfill stone 2 is laid on the reverse filter geotextile 3, and the precast gravity retaining wall 1 is set on the backfill stone 2. The precast gravity retaining wall 1 includes at least two sets of retaining wall structures, which are distributed in a stepped manner on the backfill stone 2.

[0016] The retaining wall structure of the small precast gravity retaining wall 1 is made of precast concrete, which can be poured outside the construction site and then transported to the construction site for installation and use. This can shorten the straight-line construction period of concrete pouring and speed up the construction process. In addition, the stepped small precast gravity retaining wall 1 can reduce the amount of concrete used by about 50% and has the advantage of occupying less space on the slope.

[0017] The bottom of the lowest retaining wall structure is in contact with the ground, and the inner side of the lowest retaining wall structure is in contact with the backfill stone slag 2. The bottom and inner side of the remaining retaining wall structures are in contact with the backfill stone slag 2.

[0018] The precast gravity retaining wall 1 includes three sets of retaining wall structures: a foundation retaining wall 11, an intermediate retaining wall 12, and a top retaining wall 13. The foundation retaining wall 11, the intermediate retaining wall 12, and the top retaining wall 13 are arranged in a stepped manner from bottom to top on the backfill stone slag 2. The bottom of the foundation retaining wall 11 is in contact with the ground, and the inner side of the foundation retaining wall 11 is in contact with the backfill stone slag 2. The bottom and inner side of the intermediate retaining wall 12 and the top retaining wall 13 are in contact with the backfill stone slag 2.

[0019] Depending on the height of the fill slope, the number of intermediate retaining walls 12 can be increased or eliminated.

[0020] The retaining wall structure is less than 1m high and 5-10m long. The bottom surface of the retaining wall structure is provided with a 1% reverse slope to enhance the anti-slip ability of the retaining wall structure.

[0021] The reverse filter geotextile 3 is used to separate the backfill stone 2 from the original soil 4. The boundary line between the backfill stone 2 and the original soil 4 should preferably be a straight line to facilitate the laying of the reverse filter geotextile 3.

[0022] The retaining wall structure is equipped with a drainage pipe that connects to the backfill stone slag 2.

[0023] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A form of revetment for high earth slopes consisting of a plurality of stepped precast concrete retaining wall units characterised in that: The prefabricated gravity retaining wall (1), backfill stone (2) and reverse filter geotextile (3) are included. The reverse filter geotextile (3) is laid on the surface of the original soil (4). The backfill stone (2) is laid on the reverse filter geotextile (3). The prefabricated gravity retaining wall (1) is set on the backfill stone (2). The prefabricated gravity retaining wall (1) includes at least two sets of retaining wall structures. The retaining wall structures are distributed in a stepped manner on the backfill stone (2).

2. The multi-stage stepped precast concrete retaining wall assembly of claim 1, wherein: The bottom of the lowest retaining wall structure is in contact with the ground, and the inner side of the lowest retaining wall structure is in contact with the backfill stone (2). The bottom and inner side of the remaining retaining wall structures are in contact with the backfill stone (2).

3. The multi-stage stepped precast concrete retaining wall assembly of claim 2, wherein: The prefabricated gravity retaining wall (1) includes three sets of retaining wall structures: a foundation retaining wall (11), an intermediate retaining wall (12), and a top retaining wall (13). The foundation retaining wall (11), the intermediate retaining wall (12), and the top retaining wall (13) are arranged in a stepped manner from bottom to top on the backfill stone (2). The bottom of the foundation retaining wall (11) is in contact with the ground, and the inner side of the foundation retaining wall (11) is in contact with the backfill stone (2). The bottom and inner side of the intermediate retaining wall (12) and the top retaining wall (13) are in contact with the backfill stone (2).

4. The multi-stage stepped precast concrete retaining wall assembly of claim 1, wherein: The reverse filter geotextile (3) is used to separate the backfill stone (2) from the original soil (4).

5. The multi-stage stepped precast concrete retaining wall assembly of claim 1, wherein: The retaining wall structure is equipped with a drainage pipe connected to the backfill stone slag (2).

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