CN210395432U - A gravity type retaining wall for cutting slope - Google Patents
A gravity type retaining wall for cutting slope Download PDFInfo
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- CN210395432U CN210395432U CN201921119318.6U CN201921119318U CN210395432U CN 210395432 U CN210395432 U CN 210395432U CN 201921119318 U CN201921119318 U CN 201921119318U CN 210395432 U CN210395432 U CN 210395432U
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Abstract
The utility model relates to a gravity type retaining wall correlation technique field specifically is a gravity type retaining wall for cutting side slope, including the retaining wall, the retaining wall is built outward and is erect between road bed and slope body glide plane, the retaining wall wholly is the tilting structure, it puts slope excavation face and second grade and puts slope excavation face to have seted up one level on the slope body glide plane, the rear side of retaining wall is hugged closely and is built by laying bricks or stones on the one-level of slope body glide plane and puts slope excavation face, the retaining wall embeds installs the inverted filter layer, a plurality of ways PVC drain pipe are installed to the water delivery mouth position of inverted filter layer, the retaining wall outside is provided with the notch, the notch is exposed to the outlet of PVC drain pipe. This application retaining wall embeds the inverted filter layer, can effectively discharge the ponding behind the back of the retaining wall to consolidate massif side slope, also improved the life of retaining wall, reduce and maintain the fund.
Description
Technical Field
The utility model relates to a gravity type retaining wall correlation technique field specifically is a gravity type retaining wall for cutting slope.
Background
The gravity type retaining wall is a common retaining structure and is very widely applied. However, until now, the gravity retaining wall design is mainly carried out by adopting classical or improved Rankine or Coulomb theory to calculate the active earth pressure or passive earth pressure behind the wall in the engineering. The conventional rankine or coulomb theory is based on constructing a retaining wall first and then filling earth behind the wall and assuming a calculation theory of earth pressure when both active and passive extreme states occur, so that both theories are more suitable for the design of a soil filled retaining wall behind the wall. However, in road (including highway and railway) engineering, a large number of gravity type retaining walls of cutting slopes are constructed by firstly digging slopes and then attaching the slopes, and the working principle of the gravity type retaining walls is essentially different from the traditional situation that retaining walls are constructed firstly and then filled with soil behind the walls.
As for the basically stable cutting slope, the cutting slope gravity type retaining wall is an active reinforced retaining wall in principle, and the design idea is that the integral stability safety factor Fs of the reinforced slope is larger than or equal to the safety factor required by the corresponding working condition. The existing design and calculation method is the same as the situation that the retaining wall is built firstly and then filled with soil, the retaining wall is designed by taking the verified slip-resistant stability safety coefficient Ks (Ks is specified to be more than or equal to 1.3) and the anti-overturning stability coefficient Kt (Kt is specified to be more than or equal to 1.6) of the retaining wall as standards, and the design idea of the method is not consistent with the idea of taking the integral stability safety coefficient of the side slope as a control standard and is not matched with the idea of taking the integral stability safety coefficient of the side slope as a. The defects of the prior art are that the action principle of the designed retaining wall is not consistent with the actual working principle of the gravity type retaining wall of the cutting slope, so that the designed retaining wall is large in size, too conservative and serious in fund waste.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a gravity type retaining wall for cutting slope to solve the problem that provides in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a gravity type retaining wall for cutting side slope, includes the retaining wall, the retaining wall is built outward and is established between road bed and slope body glide plane, the retaining wall is whole to be the tilting structure, it puts slope excavation face and second grade slope excavation face to have seted up one grade on the slope body glide plane, the rear side of retaining wall is hugged closely and is built by laying bricks or stones on the one-level slope excavation face of slope body glide plane, the retaining wall embeds installs the inverted filter layer, a plurality of ways PVC drain pipe are installed to the water delivery port position on inverted filter layer, the retaining wall outside is provided with the notch, the outlet of PVC drain pipe stretches out the notch and exposes.
As a further aspect of the present invention: the inverted filter layer is arranged on the inner side of the wall back of the retaining wall.
As a further aspect of the present invention: the horizontal position of the bottom line of the inverted filter layer is required to be lower than the bottommost end of the sliding surface of the slope body.
As a further aspect of the present invention: and the foundation part of the retaining wall is built below the roadbed.
As a further aspect of the present invention: the retaining wall is higher than the upper plane part of the roadbed, and the inclination of the retaining wall is determined according to the stability of the sliding surface of the slope body.
As a further aspect of the present invention: the first grade sloping excavation surface and the second grade sloping excavation surface are arranged in a step mode, and a horizontal platform is arranged between the first grade sloping excavation surface and the second grade sloping excavation surface.
Compared with the prior art, the beneficial effects of the utility model are that:
different with the operation engineering of building earlier among the prior art retaining wall and then filling with earth, this application embeds the inverted filter to contacting inverted filter and slope glide plane, can effectively discharging retaining wall ponding behind one's back, thereby reducing the situation that soil property pine takes off, consolidating mountain slope, also improved the life of retaining wall, reduce the risk that the retaining wall sinks, reduce and maintain the fund.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application. Also, the drawings and the description are not intended to limit the scope of the present concepts in any way, but rather to illustrate the concepts of the present disclosure to those skilled in the art by reference to specific embodiments.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of the position of the building on the mountain slope of the present invention.
In the figure: 11-roadbed, 12-original mountain side slope, 13-first grade slope digging surface, 14-second grade slope digging surface, 15-platform, 16-slope sliding surface, 2-retaining wall, 21-inverted filter layer, 22-PVC drain pipe and 23-notch.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, examples of which are shown in the drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements, unless otherwise indicated.
It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The present application takes two-stage cutting slope in mountainous area as an example, and a specific implementation of the present application will be described.
Referring to fig. 1 and 2, a gravity retaining wall for a cutting slope includes a retaining wall 2, and the retaining wall 2 is externally erected between a roadbed 11 and a slope sliding surface 16 for blocking a soil landslide. The retaining wall 2 is integrally of an inclined structure, and a first-level slope-releasing excavation surface 13 and a second-level slope-releasing excavation surface 14 are formed on the slope sliding surface 16;
the rear side of the retaining wall 2 is tightly attached to a first-level slope-laying excavation surface 13 built on a slope body sliding surface 16, and the foundation part of the retaining wall 2 is built below a roadbed 11, so that the stability of the retaining wall 2 is guaranteed. The retaining wall 2 is higher than the upper plane portion of the roadbed 11, and the inclination is determined according to the stability of the slope sliding surface 16. The retaining wall 2 is calculated according to the stability factor of the corresponding slope sliding surface 16, and corresponding retaining wall 2 data is designed.
The retaining wall 2 is internally provided with an inverted filter layer 21, the inverted filter layer 21 is arranged on the inner side of the wall back of the retaining wall 2, the horizontal position of the bottom line of the inverted filter layer 21 is required to be lower than the bottom end of the slope sliding surface 16, a plurality of PVC drain pipes 22 are arranged at the water delivery port of the inverted filter layer 21, a notch 23 is formed in the outer side of the retaining wall 2, and the water outlet of the PVC drain pipe 22 extends out of the notch 23 and is exposed. The inverted filter 21 has a drainage effect.
The working principle is as follows: different with the operation engineering of building the barricade earlier among the prior art and then filling with earth, built-in inverted filter 21 in this application to contacting inverted filter 21 with slope glide plane 16, can effectively discharging retaining wall 2 ponding behind one's back, thereby reducing the situation that the soil property pine takes off, consolidating mountain slope, also improved retaining wall 2's life, reduce the risk that retaining wall 2 sinks, reduce and maintain the fund.
The utility model discloses a construction method for gravity type retaining wall of cutting slope, including following step:
the method comprises the following steps: preparing corresponding construction operation equipment, and excavating the original mountain side slope 12 according to the construction sequence from top to bottom;
step two: firstly, excavating a secondary grade slope-releasing excavation surface 14 (necessary to adopt a related supporting tool), arranging a horizontal platform 15 at the bottom foot position of the secondary grade slope-releasing excavation surface 14, and excavating a primary grade slope-releasing excavation surface 13;
step three: preparing corresponding building equipment, building a foundation part of the retaining wall 2, and building a main body part of the retaining wall 2 along a first-level slope-laying excavation surface 13;
step four: when the retaining wall 2 is built, the internal inverted filter 21 is preferentially installed, the PVC drain pipe is erected, and finally the retaining wall 2 is sealed and poured.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. The utility model provides a gravity type retaining wall for cutting side slope, includes retaining wall (2), retaining wall (2) are external to be erect between road bed (11) and slope body glide plane (16), retaining wall (2) wholly is the tilting structure, a serial communication port, slope body glide plane (16) are gone up and have been seted up one level and have been put slope excavation face (13) and two levels and put slope excavation face (14), the rear side of retaining wall (2) is hugged closely and is built on one-level of slope body glide plane (16) is put slope excavation face (13), retaining wall (2) are built-in to be installed and are reversed filtering layer (21), a plurality of dry road PVC drain pipe (22) are installed to the water delivery mouth position of reversed filtering layer (21), retaining wall (2) outside is provided with notch (23), the outlet of PVC drain pipe (22) stretches out notch (23) and exposes.
2. A gravity retaining wall for cutting slopes according to claim 1, characterized in that the refilter layer (21) is provided inside the back of the wall (2).
3. A gravity retaining wall for cutting slopes according to claim 2, wherein the bottom line of the inverted filter layer (21) is required to be lower in horizontal position than the lowermost end of the slope sliding surface (16).
4. A gravity retaining wall for cutting slopes according to claim 1, characterized in that the foundation portion of the retaining wall (2) is laid beneath a subgrade (11).
5. A gravity retaining wall for cutting slopes according to claim 4, wherein the retaining wall (2) is higher than the upper planar portion of the subgrade (11) and the inclination of the retaining wall is determined according to the stability of the slope sliding surface (16).
6. A gravity retaining wall for cutting slopes according to any one of claims 1 to 5, wherein the primary sloping excavation surface (13) and the secondary sloping excavation surface (14) are arranged in a stepped manner, and a horizontal platform (15) is arranged between the primary sloping excavation surface (13) and the secondary sloping excavation surface (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921119318.6U CN210395432U (en) | 2019-07-17 | 2019-07-17 | A gravity type retaining wall for cutting slope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921119318.6U CN210395432U (en) | 2019-07-17 | 2019-07-17 | A gravity type retaining wall for cutting slope |
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| Publication Number | Publication Date |
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| CN210395432U true CN210395432U (en) | 2020-04-24 |
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| CN201921119318.6U Active CN210395432U (en) | 2019-07-17 | 2019-07-17 | A gravity type retaining wall for cutting slope |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113215995A (en) * | 2021-05-11 | 2021-08-06 | 广州市市政工程设计研究总院有限公司 | Method for constructing bridge road in narrow space |
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2019
- 2019-07-17 CN CN201921119318.6U patent/CN210395432U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113215995A (en) * | 2021-05-11 | 2021-08-06 | 广州市市政工程设计研究总院有限公司 | Method for constructing bridge road in narrow space |
| CN113215995B (en) * | 2021-05-11 | 2022-06-10 | 广州市市政工程设计研究总院有限公司 | Method for constructing bridge road in narrow space |
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