Composite geo-membrane anchorage and floating resisting structure

Abstract

Provided is a composite geo-membrane anchorage and floating resisting structure. The composite geo-membrane anchorage and floating resisting structure is a novel floating resisting structure which can be applied to composite geo-membrane horizontal seepage prevention projects such as plain reservoirs, artificial lakes, impounding reservoirs and municipal landfills. The structure comprises a floating resisting composite geo-membrane, soil anchors and an anchorage structure, and is characterized in that one side of the floating resisting composite geo-membrane is provided with non-woven geotextile, and the other side of the floating resisting composite geo-membrane is provided with woven geotextile with suspension straps; the woven geotextile with the suspension straps is made through a machine or by weaving, and the high-strength suspension straps are evenly arranged in the warp direction (namely the longitudinal direction) of the geotextile; the soil anchors are fixed into foundation soil of a certain depth through an anchor rod drilling machine and an anchorage agent; the anchorage structure is used for connecting anchor rods with the floating resisting composite geo-membrane, the anchor structure can be made of concrete or steel or plastic and includes line anchors and spot anchors, the line anchors are in a long beam shape, and the spot anchors are in a disc shape; and the floating resisting composite geo-membrane is tied or welded to the anchorage structure through the high-strength suspension straps, and the anchorage structure is fixed into the foundation soil through the anchor rods.

Description

Technical field [0001] The invention relates to an anti-floating technology under the condition of high groundwater level with a horizontal anti-seepage composite geomembrane such as plain reservoirs, artificial lakes, reservoirs or municipal landfills, and belongs to the technical fields of water conservancy, municipal anti-seepage and anti-uplifting. Background technique [0002] With the rapid development of social economy, many plain reservoirs, artificial lakes, reservoirs or municipal landfills have been built in the water conservancy and municipal departments. In these projects, in order to prevent the leakage of water (or filtrate), the entire reservoir is often Lay a composite geomembrane horizontal anti-seepage system on the bottom of the reservoir (or the bottom of the lake, the bottom of the pool, or the bottom of the pit). For the horizontal anti-seepage composite geomembrane in areas with high groundwater level, when the overlying pressure on the membrane is lower t...

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Problems solved by technology

[0004] There are certain defects in the above-mentioned methods: method 1 sets the weighted soil on the membrane, encroaching on the volume of the reservoir, artificial lake, reservoir or municipal landfill; method 2 will make some inferior groundwater enter the reservoir, artificial lake, water storage In the pool, it affects the water quality of the water storage; method 3 can only solve the problem of inflation but cannot eliminate the lifting pressure, and it consumes energy and increases operation and management costs

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