A construction method for deep foundation pit dewatering support suitable for coastal areas

Abstract

The invention discloses a deep foundation pit precipitation support construction method applicable to a coastal region. The deep foundation pit precipitation support construction method comprises the following steps of digging a foundation pit according to the shape of preset space; forming support piles and a water stopping curtain on the periphery of the foundation pit; arranging steel plate water stopping piles on the inner wall of the foundation pit; and arranging a light well point between each steel plate water stopping pile and the corresponding adjacent support pile. By the deep foundation pit precipitation support construction method applicable to the coastal region, the light well points for precipitation and the steel plate water stopping piles are arranged pointedly according to staggered distribution conditions of quicksand layers and water-resisting layers of the coastal region, and a precipitation effect of the deep foundation pit is guaranteed. In addition, by the steel plate water stopping piles, underground water can be stopped from bypassing a channel of the water stopping curtain, piping and quicksand can be prevented, and the construction quality of the deep foundation pit of the coastal region is ensured.

Description

technical field [0001] The invention relates to a deep foundation pit dewatering support construction method, in particular to a deep foundation pit dewatering support construction method suitable for coastal areas. Background technique [0002] With the development of the economy, various industrial and mining enterprises continue to expand economically to the coastal areas, and the relocation and reconstruction of various enterprises have made indelible contributions to the coastal economic circle. [0003] During the relocation and reconstruction of the enterprise, the difference in soil quality between the coastal area and the inland area brought considerable difficulties to the construction. Due to the high average underground water level, high water pressure, and extremely rich groundwater in coastal areas, and there are relatively complex quicksand layers and water-resisting layers interlaced, therefore, some deep foundation pit dewatering support construction methods...

AI Technical Summary

Problems solved by technology

Due to the high average underground water level, high water pressure, and extremely rich groundwater in coastal areas, and there is a relatively complex distribution of quicksand layers and water-resisting layers, some deep foundation pit dewatering support construction methods are not suitable for these areas

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