Title:
RAPID REPAIR STRUCTURE FOR SECOND-LEVEL OR HIGHER SOIL SLOPE SHALLOW LANDSLIDE, AND CONSTRUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/083785
Kind Code:
A1
Abstract:
A rapid repair structure for a second-level or higher soil slope shallow landslide, and a construction method therefor. The repair structure is: steps are dug out of a collapsed portion of a landslide,
a plurality of layers of backfill bagged soil are filled on the steps, a geogrid being laid out at the bottom of each layer of backfill bagged soil, and a reserved part of the geogrid being wrapped back along the backfill bagged soil above the geogrid and stretched to a required tensile strength. The geogrid is fixed to the top surface of the backfill bagged soil by means of a U-shaped nail to form an inverted wrap, the invertedly wrapped geogrid and an adjacent upper geogrid are fixedly connected by means of a U-shaped nail and are both fixed to the top surfaces of the corresponding backfilled bagged soil, and a plurality of steel reinforcement bars are implanted at the bottom of a reinforcement body formed by the backfill bagged soil and the geogrid. The repair structure of the present invention achieves a supporting and protecting effect, while also achieving energy dissipation of expansion deformation generated by soil in the slope by means of deformation of the structure itself. The invention features a good repairing effect, simple and convenient construction, low technical requirements for personnel, a short construction period, few machines, low risks, low costs, and environmental friendliness.
Inventors:
ZHANG JUNHUI (CN)
ZHOU QINWEI (CN)
LI FENG (CN)
ZHANG SHIPING (CN)
ZHOU QINWEI (CN)
LI FENG (CN)
ZHANG SHIPING (CN)
Application Number:
PCT/CN2021/131755
Publication Date:
April 28, 2022
Filing Date:
November 19, 2021
Export Citation:
Assignee:
UNIV CHANGSHA SCIENCE & TECH (CN)
International Classes:
E02D17/20; E02D3/046; E02D5/74; E02D17/18
Domestic Patent References:
| WO1987001148A1 | 1987-02-26 |
Foreign References:
| CN113322984A | 2021-08-31 | |||
| CN110656652A | 2020-01-07 | |||
| CN111691435A | 2020-09-22 | |||
| CN112049134A | 2020-12-08 | |||
| CN103410167A | 2013-11-27 | |||
| CN201053121Y | 2008-04-30 | |||
| JPH05171652A | 1993-07-09 |
Attorney, Agent or Firm:
BEIJING GAOWO LAW FIRM (CN)
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