Groundwater recharge system structure for foundation pit dewatering
A system structure, groundwater technology, applied in infrastructure engineering, soil protection, construction, etc., can solve problems such as blockage, and achieve the effect of reducing land subsidence, restraining land subsidence, and reducing underground obstacles
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[0021] Such as figure 1 The shown structure of the groundwater recharge system used in the foundation pit dewatering includes the recharge well 5 and the recharge device, and a water-stop curtain 3 is provided on the edge of the foundation pit 1, and the water-stop curtain 3 is partially inserted into the confined aquifer In 4, as the enclosure of the foundation pit 1, the decompression well 2 is set inside the water-stop curtain 3, and the reinjection well 5 is set outside the water-stop curtain 3. The water is connected, and the bottoms of the depressurization well 2 and the reinjection well 5 are respectively provided with filters, and the bottoms of the filters are shallower than the bottoms of the water-stop curtain 3 .
[0022] combine figure 2 As shown, the reinjection well 5 includes: a well pipe 18, and the outer wall of the well pipe 18 is provided with a water-stop layer 7, a water-resistant layer 22 and a filter layer 21 sequentially from top to bottom, wherein t...
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