Waterstop device and waterstop construction method suitable for large-section rectangular pipe jacking starting

Abstract

The invention provides a waterstop device and waterstop construction method suitable for large-section rectangular pipe jacking starting. The device comprises a waterstop tank body, a waterstop sock sleeve and a grease filling structure, wherein the waterstop tank body is annularly arranged on the outer edge of a tunnel portal building envelope, and the waterstop sock sleeve and the grease filling structure are each connected to the inner side of the waterstop tank body. The method comprises the steps of manufacturing and providing the pipe jacking waterstop device, mounting the pipe jacking waterstop device by utilizing the waterstop tank body, starting a pipe jacking machine to enable the waterstop device to enter a tunnel portal, and pressing and injecting grease into the outer wall of the pipe jacking machine. According to the waterstop device and waterstop construction method, the problems that in the pipe jacking construction process, the sealing performance is poor, and consequently the water effect fails, and muddy water is leaked outwards are solved, and the pipe jacking construction quality is further improved.

Description

technical field [0001] The invention relates to a water stop device, in particular to a water stop device and a water stop construction method suitable for the initiation of large-section rectangular pipe jacking. Background technique [0002] With the continuous development and expansion of urban underground space, the development and construction technology of rectangular pipe jacking machines have made great progress. Now that the small-section construction technology is mature, the market demand for large-section rectangular pipe jacking is also increasing. [0003] Pipe jacking is a non-excavation underground passage construction technology, which has very high requirements for water sealing of the working well door during construction. etc. also have a direct impact. However, if figure 1 As shown, the traditional water-stop device is to install a water-stop sock on the door ring. The sock is easily worn or torn by the pipe joint during construction, which directly ma...

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Problems solved by technology

[0004] In order to overcome the defects of the existing technology, a water stop device and construction method suitable for large-section rectangular pipe jacking are provided to solve the problem of poor sealing during the pipe jacking construction process, which leads to the failure of the water effect and the leakage of mud water problems in order to further improve the construction quality of pipe jacking

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