Multi-layer pipe rack structure of deep pipe rack foundation pit and construction method of multi-layer pipe rack structure

Abstract

The invention discloses a multi-layer pipe rack structure of a deep pipe rack foundation pit and a construction method of the multi-layer pipe rack structure, and belongs to the technical field of underground pipe rack construction. The pipe rack structure comprises a pipe rack foundation pit, the two sides of the pipe rack foundation pit are provided with two rows of cast-in-situ bored piles, steel plate nets are fixed to the right outer wall of the cast-in-situ bored pile on the left side of the pipe rack foundation pit and the left outer wall of the cast-in-situ bored pile on the right sideof the pipe rack foundation pit, concrete is sprayed to the steel plate nets, and a guniting layer is formed. A concrete cushion layer is poured to the bottom face of the pipe rack foundation pit, awaterproof roll is laid on the concrete cushion layer, and the two sides of the waterproof roll are overturned upwards and are closely attached to the guniting layer. The left edge position and the right edge position of the waterproof roll are fixed to the guniting layer through rivets. A multi-layer pipe rack is arranged on the waterproof roll. During construction of the multi-layer pipe rack structure of the deep pipe rack foundation pit, the guniting layer on the inner wall of the pipe rack foundation pit is utilized as a pipe rack wall plate outer template, the template usage amount is reduced, the construction cost is saved, the pipe rack template construction work is simplified, and the work period is shortened.

Description

technical field

[0001] The invention belongs to the technical field of underground pipe gallery construction, and in particular relates to a multilayer pipe gallery structure of a deep pipe gallery foundation pit and a construction method thereof. Background technique

[0002] At present, in the construction of deep foundation pit pipe gallery, the earthwork excavation of the pipe gallery foundation pit is generally carried out by large excavation, and then the construction of the pipe gallery is carried out; However, under special circumstances, especially in the central area of ​​the city, due to the narrow construction surface of the pipe gallery and the narrow support space of the pipe gallery, it is impossible to Effectively complete the construction of the pipe gallery. Contents of the invention

[0003] In order to solve the above existing problems, the present invention proposes a multi-layer pipe gallery structure and a construction method for deep pipe gallery f...

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