Open caisson reserved hole water stopping device and using method

Abstract

The invention relates to the technical field of underground pipeline facility construction, in particular to an open caisson reserved hole water stopping device and a using method. The device is mainly composed of a steel ring plate, an upper hoop, a lower hoop, a rubber water stop ring, a rubber sealing ring, a notch, a fastening bolt and a limiting bolt. The main function is to solve the problems of water seepage in the gap between the reserved hole of the open caisson and the pipe wall, and sand and mud are poured into the open caisson in the pipe jacking construction process. Firstly, a steel ring plate is pre-buried before the open caisson is poured, a reserved notch is formed in the steel ring plate, an upper hoop and a lower hoop can move in the fastening process, it is guaranteed that the peripheries of the hoops and the pipe wall are tightly compacted, the side walls of the hoops and the steel ring plate are plugged through rubber sealing rings, and the inner sides of the hoops and the pipe wall are plugged through rubber water stopping rings; fastening, limiting and fixing are carried out through bolts, installation is easy, and the sealing performance of contact parts is guaranteed. Compared with other methods, the method has more advantages in the aspects of sealing performance, water stopping, leaking stoppage, simple and convenient using method and the like.

Description

technical field [0001] The invention relates to the technical field of underground pipeline facility construction, in particular to a water-stopping device for a reserved hole in a caisson and a method for using the same. Background technique [0002] With the large-scale and rapid development of urban construction, a large number of underground traffic, underground pipe networks, and underground buildings are constantly being built, renovated, expanded and maintained. The pipe jacking method has become an important method for the construction of underground pipeline facilities due to its advantages of wide application range of soil layers, less disturbance to surrounding soil, less impact on urban traffic and pedestrian travel, and less damage to the environment. At present, the pipe jacking construction technology has become a conventional construction method, and many pipelines such as water pipes, gas pipes, power cables, communication cables and power plant circulation ...

AI Technical Summary

Problems solved by technology

[0003] The existing water-stop measures at the entrance of the hole are generally to install rubber flanges to stop the water at the hole, but there are still problems with the unsatisfactory water-stop effect, especially when the groundwater, mud sand and mud cannot be prevented from flowing from the gap between the pipe joint and the water-stop ring. flow into the working well

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