Dewatering well sealing device and dewatering well sealing method

Abstract

The invention is appliable to the field of engineering construction, and provides a dewatering well sealing device and a dewatering well sealing method. The dewatering well sealing device comprises a fixing plate and further comprises a plurality of groups of locking holes, a connecting assembly and a grouting assembly, wherein the locking holes are formed in a well mouth of a dewatering well to be sealed; the connecting assembly penetrates through a fixing plate and is connected with the locking holes; the grouting assembly is arranged on the side, away from the dewatering well to be sealed, of the fixing plate, and is used for grouting cement paste into the sealed dewatering well; the fixing plate is preprocessed, and then the grouting assembly and the fixing plate are welded; the fixing plate and the well mouth of the dewatering well to be sealed are connected and fixed through the connecting assembly; and then the cement paste is poured into the sealed dewatering well through the grouting assembly. The dewatering well sealing device has the advantages that the structure is simple; the operation and control is convenient; the complex well sealing operation can be completed through several simple steps; a large amount of welding operation is not needed; the workload of constructors is reduced; and the success rate of one-time well sealing is greatly increased.

Description

technical field [0001] The invention belongs to the field of engineering construction, and in particular relates to a sealing device for a dewatering well and a method for sealing a dewatering well. Background technique [0002] With the continuous improvement of China's urbanization level, there are more and more ground buildings, and various urban diseases such as traffic congestion and air pollution are becoming more and more obvious. Therefore, major cities actively use and develop underground space, corresponding light rail, subway and Various types of underground space projects are developing more and more rapidly. Considering factors such as economy, cost, safety, and construction period, the construction of underground space projects is still dominated by open excavation. Therefore, how to ensure the intrusion of groundwater during the open excavation process is an important and difficult point in project construction; [0003] At present, using well point dewaterin...

AI Technical Summary

Problems solved by technology

[0004] Although this sealing method can seal the dewatering well after multiple implementations, the success rate of one-time sealing is low, and a large number of welding operations are required. The workload is heavy, the operation is cumbersome, and it is time-consuming and labor-intensive.

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