Internal support structure capable of solving pit bias problem in deep foundation pit and shallow foundation pit

Abstract

The invention relates to the technical field of construction engineering, in particular to an inner support structure capable of solving the pit bias problem in a deep foundation pit and a shallow foundation pit. The inner support structure comprises underground diaphragm walls and a partition wall, and is characterized by further comprising a supporting beam and a middle inner support, wherein the underground diaphragm walls are located at the edge positions of the deep foundation pit and the shallow foundation pit, the partition wall is located at the junction of the deep foundation pit andthe shallow foundation pit, the supporting beam is laid at the bottom of the shallow foundation pit, and the middle inner support is located in the deep foundation pit; the supporting beam is of a reinforced concrete structure laid below a structure foundation in the shallow foundation pit and is supported between the underground diaphragm wall of the shallow foundation pit and the partition wallin the horizontal direction; and the middle inner support is a reinforced concrete structure which is supported between the underground diaphragm wall of the deep foundation pit and the partition wallin the horizontal direction and is flush with the supporting beam; and the middle inner support and the supporting beam are arranged on the two sides of the partition wall. The inner support structure has the advantages that the construction structure is simple, a construction method is efficient, simple and simple, the foundation pit construction in-building stability can be improved, the cost of the inner supporting structure can be lowered, and great popularization values can be achieved.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to an internal support structure which can solve the problem of pit bias in deep and shallow foundation pits. Background technique [0002] With the development of urbanization, various cities follow the requirements of "zero-distance transfer" according to the characteristics of urban space and passenger travel, and large-scale underground comprehensive transportation hub projects have emerged as the times require. , and subway station halls are closely connected, with a three-dimensional interaction in space, and there are overlaps in the construction sequence. [0003] At present, the first and second underground floors of most transportation hub stations are used for municipal supporting projects and the exit hall of the national railway, and the third underground floor of some is used for the subway station hall. The construction process involves the excavation...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of difficult construction, low efficiency and high cost in the support structure of the prior art deep and shallow foundation pits mentioned in the above background technology, and to provide a method that can solve the problem of pit bias in deep and shallow foundation pits. Internal support structure

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