Steep slope embankment supporting and blocking structure and construction method thereof

A technology for retaining structures and embankments, which can be used in infrastructure engineering, underwater structures, roads, etc., and can solve the problems of large engineering volume and high cost.

Pending Publication Date: 2019-03-01
CHINA RAILWAY SIYUAN GRP SOUTHWEST SURVEY & DESIGN CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The object of the present invention is to provide a steep slope embankment retaining structure and construc

Method used

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  • Steep slope embankment supporting and blocking structure and construction method thereof
  • Steep slope embankment supporting and blocking structure and construction method thereof

Examples

Experimental program
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Embodiment 1

[0057] On the basis of the above embodiments, further, a steep slope embankment retaining structure mainly includes a double-row pile bearing cantilever anchor cable retaining wall, including a pile foundation, a cantilever retaining wall 1 and a prestressed anchor cable 3 . The cantilever retaining wall 1 is composed of a base plate 12 and a vertical wall 11 arranged above the base plate 12, wherein the base plate 12 is made in cooperation with the pile cap. Below the cantilever retaining wall 1, two rows of foundation piles 2 are arranged at intervals along its length direction. Both the cantilever retaining wall 1 and the pile foundation are reinforced concrete structures, and the cantilever retaining wall 1 is rigidly connected to the top of the pile foundation.

[0058] Two rows of prestressed anchor cables 3 are arranged on the vertical wall 11 of the cantilever retaining wall 1 , and the anchor sections of the anchor cables 3 are placed in the stable soil layer or bedroc...

Embodiment 2

[0069] This embodiment is basically the same as Embodiment 1. For the sake of brevity, in the description process of this embodiment, the same technical features as Embodiment 1 will not be described, and only the differences between this embodiment and Embodiment 1 will be described:

[0070]A retaining structure for a steep slope embankment mainly includes an anchor-pull pile bearing cantilever anchor cable retaining wall, including a pile foundation, a cantilever retaining wall 1 , a prestressed anchor cable 3 and a prestressed anchor rod 6 . Under the cantilever retaining wall 1, foundation piles 2 and prestressed anchor rods 6 are arranged at intervals along its length direction. A row of foundation columns 2 is arranged on the outer side of the bottom plate 12 , and a row of anchor rods 6 is arranged on the inner side of the bottom plate 12 .

[0071] The specific implementation of the support structure includes: excavating the pile foundation construction platform on th...

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Abstract

The invention relates to the field of steep slope roads and discloses a steep slope embankment supporting and blocking structure and a construction method thereof. The steep slope embankment supporting and blocking structure comprises a cantilever-type soil retaining wall, a foundation pile and an anchor cable; and the cantilever-type soil retaining wall comprises a bottom plate and a vertical wall located on the bottom plate, the foundation pile is arranged on the lower part of the bottom plate, the bottom of the foundation pile is inserted into a slope body, a first anchor cable hole is formed in the vertical wall, one end of the anchor cable is connected with the vertical wall at the first anchor cable hole, and the other end of the anchor cable is inserted into a second anchor cable hole in the slope body and fixed into a stable soil layer or base rock of the slope body. According to the steep slope embankment supporting and blocking structure and the construction method thereof, apile foundation is arranged to support the cantilever-type soil retaining wall so that the problem of insufficient bearing capacity of a foundation can be solved, and the anti-overturning capabilityand the anti-sliding capability of the supporting and blocking structure are improved; and the anchor cable is arranged to connect the vertical wall with the slope body, the soil pressure of the wallback of the soil retaining wall can be partially counteracted, and the anti-overturning capability of the soil retaining wall and the overall stability of the supporting and blocking structure are further improved.

Description

technical field [0001] The invention relates to the field of steep slope roads, in particular to a steep slope embankment retaining structure and a construction method. Background technique [0002] The most widely used composite retaining structure in the existing retaining structure of steep slope embankment is the retaining wall of pile foundation joist. Such a combination expands the scope of application of the retaining wall, but the form of the retaining wall is mainly a counterweight retaining wall. Since the counterweight retaining wall still needs to maintain its own stability by a certain weight, the cross-section is wide and the volume big. [0003] At present, various forms of traditional retaining structures have been widely used in railway and highway construction projects, but more and more subgrade projects with large fill heights and requiring vertical slope closures appear in engineering construction. In order to meet the higher requirements for the stabi...

Claims

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Application Information

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IPC IPC(8): E02D29/02E01C3/00E02D5/76E02D27/14
CPCE01C3/00E02D5/76E02D27/14E02D29/02E02D29/0275
Inventor 康承磊谢淼裴利华徐永浩贺敏杰张健焦世杰李晓娜
Owner CHINA RAILWAY SIYUAN GRP SOUTHWEST SURVEY & DESIGN CO LTD
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