Recycling system for water resources of metro station foundation pit closely adjacent to high slope

Abstract

The invention belongs to a recycling system for water resources of a metro station foundation pit closely adjacent to a high slope. The recycling system comprises a foundation pit water pumping and draining system, a sedimentation water collecting tank system, a high slope collection and storage system and a water resource utilization system. The water resource utilization system is used for introducing filtered water in a fire-fighting water pool to provide water resources for a concrete structure curing water-consuming system of a metro station, a construction site fire-fighting pipeline system, a field area road sprinkler system, a foundation pit anchor-plate retaining water-consuming system, a dust fog falling gunlock water-consuming system and a temporary living quarter water-consuming system. The water resources of the metro station foundation pit closely adjacent to the high slope are effectively recycled, and the recycling system has the advantages that the method is simple and practical, the water consumption quantity is decreased, the construction cost is reduced, the water drainage and filtration effects are good, the pollution control cost is low, sewage is recovered and recycled on the spot, and the energy-saving and environment-friendly effects are good.

Description

technical field [0001] The invention belongs to a recycling system for water resources in foundation pits of subway stations adjacent to high slopes. Background technique [0002] my country is a water-deficient country. The per capita water resources are less than 2,200 cubic meters, which is only 28% of the world's average level, and the distribution of time and space is uneven. With the continuous development of my country's economic and social construction, resource water shortage, water quality water shortage and water environmental pollution have become important constraints on the sustainable development of economy and society. [0003] At present, in the field of subway station construction, the main structure construction, foundation pit anchor spraying support construction, dust reduction green civilization construction, fire protection, domestic water and surface drainage and drainage all consume a lot of water resources, and water consumption is an important cost...

AI Technical Summary

Problems solved by technology

[0004] (1) Serious waste of water resources

Traditional subway station foundation pits cannot effectively use the water pumped out of the dewatering well and atmospheric precipitation, but directly discharge the above water sources into the municipal pipe network, resulting in a large waste of groundwater resources

[0005] (2) The municipal pipeline network is silted up. At present, the groundwater with extremely high sand content extracted from the dewatering well of the foundation pit of the subway station (used to lower the groundwater level of the foundation pit of the subway station to facilitate construction) is directly discharged into the In the municipal pipe network, the municipal pipe network is silted up, which not only affects the subsequent drainage, but also causes troubles for the residents in the surrounding living areas, making dredging difficult

[0006] (3) Construction and domestic water consumption is large, and construction cost is high

The above-mentioned water at the construction site is provided by the water company, and the construction cost is very high.

[0007] (4) High slope rainwater reduces foundation pit stability

For the foundation pit of the subway station adjacent to the high slope, if the drainage problem of the slope cannot be solved when the rainstorm bursts, and it is allowed to flow into the deep foundation pit of the station, it will easily lead to the instability of the foundation pit or the flooding of the construction site, which will harm the construction personnel and The device poses a serious security risk

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