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Irregular basement support construction method

A construction method and basement technology, applied in excavation, artificial islands, water conservancy projects, etc., to achieve the effects of saving materials, large construction operation space, and fast construction progress

Active Publication Date: 2016-08-03
JIANGXI GUOJIN CONSTR GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides an irregular basement support construction method to solve the problem of construction safety of the irregular basement support construction method

Method used

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  • Irregular basement support construction method
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  • Irregular basement support construction method

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Embodiment Construction

[0032] The building area of ​​a certain project is 126,000 square meters, the underground construction area is 32,000 square meters, and there are two basements. During the construction of the project, the excavation depth of the basement is 11 meters, and even reaches 12.6 meters in some areas.

[0033] The first layer of the present invention is supported by a circular concrete support 1, and the second layer is supported by a composite frame concrete support 4.

[0034] The circular concrete support 1 has a height of 700mm and a width of 900mm; the corner brace 2 of the first floor adopts concrete braces or steel braces, and the underground diaphragm wall 3 is also used as the permanent basement exterior wall. In order to ensure that the joints of the underground diaphragm wall 3 do not leak, High-pressure jet grouting piles are installed on the outside of joints 3 of the two underground diaphragm walls. The diameter of the high-pressure jet grouting piles is 600 mm; the con...

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Abstract

The invention discloses a support construction method of an irregular basement. The support construction method is characterized in that the first layer of brace is an annular concrete brace, and a second layer of brace is a combined frame concrete brace; the annular concrete brace is 600-900 mm high and 800-1100 mm wide; the first layer of corner braces are concrete braces or steel braces, underground diaphragm walls are also used as permanent basement exterior walls, high-pressure jet grouting piles are arranged outside the jointed seam between two underground diaphragm walls, and the diameters of the high-pressure jet grouting piles are 500-600 mm; the combined frame concrete brace comprises enclosing purlins and web rods, and the second layer of corner braces are concrete braces or steel braces, and profile steel latticed columns are made into lower stand columns of the annular concrete brace. By means of the construction method, materials are saved, construction operation space is large, and the construction progress is fast.

Description

technical field [0001] The invention relates to an irregular basement support construction method, which is suitable for the field of building construction. Background technique [0002] With the massive development and utilization of underground space, deep basement excavation in urban centers with limited land use will inevitably face adverse effects of basement support structures and soil deformation on adjacent underground structures. To ensure the stability of the basement support structure and the safety of the surrounding environment, under the premise of economical rationality and convenient construction, it is becoming more and more difficult to carry out basement support and excavation. Especially the irregular basement support system, the stress is more complicated, and safety will occur if there is a little carelessness. It is a difficult problem for engineering and technical personnel to ensure the safety of irregular basement support construction. Contents of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D17/04E02D29/045
Inventor 朱奎
Owner JIANGXI GUOJIN CONSTR GRP CO LTD