Foundation Pit Dewatering System

Abstract

The foundation pit dewatering system disclosed by the present invention includes a soft ground, a reclamation area and a silt area. A circle of pile foundations is arranged on the periphery of the reclamation area, a vacuum pump and a DC power supply are provided on one side of the reclamation area, and a vacuum pump connected to the reclamation area is provided on one side of the reclamation area. Vertical drainage pipes, multi-layer horizontal drainage pipes are arranged on the vertical drainage pipes, and the other end of the horizontal drainage pipes is inserted into the soft soil foundation on the other side of the reclamation area, and multiple conductive drainage plates are arranged on the horizontal drainage pipes. The horizontal drainage pipes on the upper layer are equipped with electroosmotic anodes, and the electroosmotic electrodes installed on the horizontal drainage pipes on each lower layer are opposite to the electroosmotic electrodes set on the horizontal drainage pipes on the upper layer. The electroosmotic electrode of the pipe, the wire and the conductive drainage plate form a whole that can both drain and conduct electricity, and the electroosmotic electrode of the horizontal drainage pipe is connected to the DC power supply through the wire. The foundation pit dewatering system can quickly dewater the foundation pit, speed up the reclamation rate, improve the foundation treatment efficiency, and strengthen and fasten the strength of the pile foundation.

Description

technical field [0001] The invention relates to the field of civil construction, in particular to a foundation pit dewatering system. Background technique [0002] With the acceleration of urbanization in our country, the development and utilization of underground space has become one of the important strategies for social development, and more and more foundation pit projects will inevitably occur. To develop in the direction of "deep, large and close", whether the groundwater is properly treated or not is directly related to the overall stability of the foundation pit structure and the safety of the surrounding environment. To ensure that there are no problems such as water seepage, sand gushing, and uplift at the bottom of the pit during the construction of the foundation pit, to ensure the safety of the construction of the foundation pit project and the surrounding environment in complex environments, to practice the development concept of green and environmentally frien...

AI Technical Summary

Problems solved by technology

[0003] At present, the dewatering of foundation pits in soft soil areas is mainly achieved by vacuum preloading. First, a circle of piles is inserted around the reclamation area, and then the shallow layer of the reclamation area is dewatered and consolidated by vacuum preloading. After reaching a certain strength, it will be used as a working platform and then carry out the second step of deep soil reinforcement. This foundation treatment method can only carry out the precipitation reinforcement of the lower soft soil foundation after all the filling materials have been blown and filled and the working platform has been formed. The overall treatment cycle It is very long, and the land development efficiency is low. In addition, the cross-section of each pile body of the existing prefabricated piles has a uniform width, and there is no variable cross-section. The overall strength and shear resistance of the prefabricated piles are limited.

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