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Method for treating expansive soil channel side slopes with geogrid

A technology of geogrid and expansive soil, which is applied in excavation, infrastructure engineering, construction, etc., can solve the problems of land acquisition and demolition, increase the project land occupation and channel scale, and save the waste material site and save the cost of waste material transportation , economical and reasonable effect

Inactive Publication Date: 2010-01-13
CHANGJIANG RIVER SCI RES INST CHANGJIANG WATER RESOURCES COMMISSION
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Problems solved by technology

The former requires a large number of non-expansive soil sources, and at the same time, it also causes a lot of work such as land acquisition and demolition; the latter, often combined with design measures such as slowing down the slope, thereby increasing the project land occupation and channel scale

Method used

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  • Method for treating expansive soil channel side slopes with geogrid
  • Method for treating expansive soil channel side slopes with geogrid
  • Method for treating expansive soil channel side slopes with geogrid

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Embodiment Construction

[0037] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings, but they do not constitute a limitation to the present invention, and are only examples. At the same time, the advantages of the present invention will become clearer and easier to understand.

[0038] Referring to the accompanying drawings, it can be seen that the method for the geogrid of the present invention to handle expansive soil canal slopes is characterized in that it comprises the following steps successively:

[0039] (1) Foundation cleaning: Excavate the side slope according to the requirements of the construction drawing, remove the floating soil on the slope surface and the bottom of the canal, and require the flatness of the base layer to be no more than ±5cm. Soft soil, ensure the foundation pit is clean and dry;

[0040] (2) Stake out: Stake out in strict accordance with the construction drawings, and control the side piles, fill...

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Abstract

The invention relates to a method for treating expansive soil channel side slopes with geogrids. The method comprises the following steps: (1) foundation cleaning: side slopes are excavated according to the requirements of the working drawing to remove the quick soil on the slope surface and the channel base; (2) lofting; (3) geogrid paving: geogrids are paved manually in a layered way, inverted wrapping overlap is formed by wrapping upward on the slope surface, and abutment joint is adopted between each two adjacent geogrids; the tail part of the geogrid and an unexcavated slope surface form upward extending along the slope surface, a connecting rod is adopted for the overlap between geogrids, and a U-shaped reinforcing bar is adopted between a geogrid and soil mass for anchor joint; and (4) soil laying and rolling construction. The method has the advantages that the structure formed by the geogrids and expansive soil can solve the problem that the expansive soil slopes are not stable, and simultaneously the channel excavation waste material can be reasonably utilized, therefore the purpose of stable structure, economical efficiency and reasonableness is achieved.

Description

technical field [0001] The present invention relates to a kind of reinforcement technique of using unidirectional or bidirectional high-density polyethylene (HDPE) geogrid in expansive soil area channel slope, channel bottom, and foundation treatment in expansive soil area, more specifically it is a geotechnical A method for treating expansive soil channel slopes with grids. Background technique [0002] Soil reinforcement technology has been applied by humans as early as BC. The ancient Romans used reeds to reinforce the soil to build the embankment of the Tiber River; ancient buildings such as the Great Wall of China and the ancient temples of Assyria in ancient Egypt also used Plant Vitex etc. are reinforced to improve the overall stability of the building. Until modern times, there were still "dry base" houses built with straw mixed with soil in China. Therefore, using different engineering materials together to improve the overall stability of structures has been a tec...

Claims

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Application Information

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IPC IPC(8): E02D17/20
Inventor 龚壁卫邹荣华刘鸣谭峰屹程永辉李青云程展林
Owner CHANGJIANG RIVER SCI RES INST CHANGJIANG WATER RESOURCES COMMISSION
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