Method for treating water leakage at joint of main body structure and accessory structure of underground project

Abstract

The invention relates to a method for treating water leakage at a joint of a main body structure and an accessory structure of an underground project. The method comprises the following steps that after construction of a top plate of the accessory structure is completed, a core drill is adopted to drill in the middle of the interface of the main body structure and the accessory structure, the drilled hole is an engaged hole, the diameter of the hole is 20-30 mm, and the hole is drilled as deep to reach the bottom face of a bottom plate of the accessory structure; and after drilling is completed, filling is conducted by adopting self-leveling mortar and steel fiber with the same label as a wall. A filling space is formed between the main body structure and the accessory structure through the engaged hole, the uneven structure of the engaged hole ensures that filling materials can be effectively bonded between the main body structure and the accessory structure, and prevented from cracking. Effective combination of the mobility of the self-leveling mortar and the toughness of the steel fiber is utilized to ensure that the compactness and the strength of a filled seam can achieve thewaterproof purpose.

Description

technical field [0001] The invention relates to the field of underground engineering waterproof construction, in particular to a method for treating leakage water at the interface between a main structure of an underground engineering and an auxiliary structure. Background technique [0002] With the continuous development of urban underground engineering construction in my country, more and more underground engineering is being built in water-rich areas. Since the main structure and auxiliary structures are not constructed simultaneously, the uneven shrinkage of the concrete in the later period will cause natural cracks to form at the interface, causing serious problems. of water leakage. If effective water-stop measures cannot be taken after the completion of the main structural engineering and auxiliary structural engineering, frequent water leakage will occur in the later operation process, which will not only increase the difficulty of later treatment of leakage water, b...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of water leakage at the interface between the main structure of the underground project and the auxiliary structure, the present invention provides a water leakage treatment method at the interface between the main structure and the auxiliary structure of the underground engineering, which can effectively treat the water leakage at the interface between the main structure and the auxiliary structure, Ensure that there is no leakage of water in the later operation process

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