Method for constructing water proof structure and constructing underground construction in water proof mode

Abstract

The invention discloses a method for constructing a water proof structure and constructing underground construction in a water proof mode. The method for constructing the water proof structure includes the steps that positioning steel tubes are laid on the outer periphery of prebuilt underground construction in the direction perpendicular to the extending direction of a vertical shaft after the vertical shaft is excavated for the prebuilt underground construction; micro steel tubes are jacked into the space between adjacent positioning steel tubes on the outer periphery of the prebuilt underground construction in the direction perpendicular to the extending direction of the vertical shaft; the adjacent positioning steel tubes and the micro steel tubes are connected through fore shafts and adjacent micro steel tubes are connected though fore shafts to form a water proof tube curtain encircling the outer periphery of the prebuilt underground construction; grout is injected into the micro steel tubes; water stop blocking plane bodies perpendicular to the positioning steel tubes and away from the vertical shaft at different distances are constructed in the underground space defined by the water proof tube curtain; annular supporting bodies parallel to the water stop blocking plane bodies are formed between adjacent water stop blocking plane bodies along the inner side wall of the water proof tube curtain. The water proof structure constructed through the method has the good water proof effect, and enables the water proof tube curtain to have strong rigidity.

Description

technical field [0001] The invention relates to the technical field of underground engineering, in particular to a method for constructing a water-proof structure and adopting a water-proof method for constructing an underground project. Background technique [0002] At present, there are more and more constructions of underground projects such as underground crossing passages, underground traffic tunnels, underground pipeline tunnels and subway stations. When carrying out these underground engineering constructions, the methods usually adopted include open-cut method and underground method. The open cut method is simple and fast in construction, but it has a great damage or impact on the surrounding environment, and it is only suitable for construction under the condition of shallow buried depth. During the construction of the underground excavation method, the ground of the pre-built underground engineering part is not fully excavated, which has little impact on the surro...

AI Technical Summary

Problems solved by technology

However, when the improved pipe curtain method is used for construction in larger-diameter steel pipes, construction operations such as cutting and welding are often performed on each steel pipe, making the construction more difficult and the progress slower; moreover, the improved pipe curtain method However, the method has not made improvements in the construction of water isolation, so that the water isolation effect of the water isolation structure is still not good, and formation precipitation is still required

[0006] In summary, the pipe curtain method or the improved pipe curtain method in the prior art has the problem of poor water isolation effect when constructing underground works. Therefore, it is necessary to provide a better water isolation effect. The construction method of the water-proof structure, and the method of constructing the underground engineering by using the water-proof method, so that the water-proof structure built has a better water-proof effect, and can be carried out in an anhydrous space without stratum precipitation. Construction of underground works

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