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Method for protecting steep slope roadbed through combination of slide-resistant piles and gabion high retaining wall

A technology of anti-slide piles and subgrades, applied in botany equipment and methods, excavation, foundation structure engineering, etc., can solve problems such as water and soil loss, damage to surface vegetation, and endanger the surrounding ecological environment, and achieve the effect of smooth drainage

Inactive Publication Date: 2017-06-13
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In addition, during the construction of steep slope subgrades, a large amount of excavation and waste dregs will be generated, and the accumulation of waste dregs will damage surface vegetation, induce soil erosion, and ultimately endanger the surrounding ecological environment

Method used

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  • Method for protecting steep slope roadbed through combination of slide-resistant piles and gabion high retaining wall
  • Method for protecting steep slope roadbed through combination of slide-resistant piles and gabion high retaining wall
  • Method for protecting steep slope roadbed through combination of slide-resistant piles and gabion high retaining wall

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Embodiment Construction

[0075] With reference to the accompanying drawings, a method for jointly protecting steep slope subgrades with anti-slide piles and high gabion retaining walls comprises the following steps:

[0076] (1) Excavation and disposal of dregs to regenerate material sources at all levels

[0077] At the construction site of the steep slope subgrade, sorting, crushing and screening techniques are used sequentially to regenerate the excavated muck on site to obtain stone materials for filling gabion cages and backfill sources for steep slope subgrades. Filler sources include various recycled materials in different particle size ranges;

[0078] The stone: requires hard texture, clean surface, certain durability, compressive strength not less than 30MPa, apparent density>2.5g / cm 3 , porosity <20%, particle size controlled at 12-30cm, stone material with material diameter greater than 30cm or less than 12cm, controlled at 4.5%-5.5%;

[0079] The backfill source is designed using the Ta...

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Abstract

A method for protecting a steep slope roadbed through combination of slide-resistant piles and a gabion high retaining wall comprises the following steps that firstly, excavation abandoned ballast is subjected to regeneration to form all levels of material sources; secondly, the slide-resistant piles are constructed; thirdly, concrete breast boards are installed; fourth, the gabion high retaining wall is constructed; fifthly, working procedures are circulated; and sixthly, the surface of the gabion high retaining wall is afforested. The slide-resistant piles, gabion net cages and compacted filling act jointly to form an integrated structure for jointly bearing loads, and the slope of the steep slope roadbed can keep lasting, stable and long-term safe operation. By protecting the slope in a combination manner, the gabion high retaining wall can be in a steep step manner, the slope cutting earth quantity and the earth surface damage are reduced, and the filling, lands and vegetation resources are saved. Meanwhile, soil and vegetation can be planted into holes of building stones of the gabion high retaining wall, slope greening and ecological restoration are facilitated, and landscape, ecological and environmental-friendly benefits are produced.

Description

technical field [0001] The invention belongs to the technical field of slope protection in geotechnical engineering, and in particular relates to a construction method for combined protection of steep slope subgrades with anti-slide piles and gabion high retaining walls. Background technique [0002] When building roads in mountainous or hilly areas, due to complex geological, topographical and topographical conditions, geological disasters such as side slope landslides often occur on high-fill steep slope subgrades. For this reason, reinforced high retaining walls are commonly used for steep slope subgrade slope protection. However, there are many defects in the reinforced high retaining wall, including: (1) seepage damage due to poor drainage; (2) “bulging” of the surface wall due to grid creep; (3) environmental incongruity caused by masonry protection. [0003] In the invention patent of "Construction method of river reinforced gabion permeable geotextile composite ecol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/20E02D29/02A01G1/00
CPCE02D17/20A01G2/00E02D17/207E02D29/02
Inventor 刘萌成陶君军
Owner ZHEJIANG UNIV OF TECH
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