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A super-long pipe shed pipe pulling method for underground excavation station

A shed-pulling method and station technology, which is applied in the field of the super-long pipe shed-pulling method for underground excavation stations, can solve the problems of difficult control of precision, short length of one-time construction, etc., so as to reduce weight and resistance, and save temporary support. Cost, shortening the effect of the construction period

Active Publication Date: 2020-02-14
POWERCHINA MUNICIPAL CONSTR GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the present invention aims to propose a super-long pipe shed drawing method for underground excavation stations to solve the problem that the one-time laying length of the common pipe shed construction is short and the accuracy is difficult to control

Method used

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Embodiment Construction

[0046] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0047] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood ...

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Abstract

The invention discloses an ultra-long pipe shed pipe drawing method for a mined metro station. By adopting a ground-oriented drilling construction technology, through the steps that drilling machine in place, drilling fluid configuration, guide drilling, pulling back and reaming, pipe pulling back and laying, water pressure testing, grouting and other steps, the construction of first support and then excavation of a subway tunnel is completed, and the advance support construction can solve the problems that a common method pipe shed construction has a short one time pile cap length and the accuracy is difficult to control and the ground operation has great influence.

Description

technical field [0001] The invention relates to a super-long pipe shed drawing method for underground excavation stations, which belongs to the engineering technical field of foundation pit excavation and foundation treatment, and in particular relates to a super-long pipe shed drawing method suitable for the advance support of subway structures. Background technique [0002] The pipe shed construction method is widely used in subways, tunnels and other projects. The one-time laying length of the common pipe shed construction is short and the accuracy is difficult to control. The pipe drawing method of the present invention has little impact on ground activities, and the non-excavation method is used to traverse 62m at a time. , The super-long pipe shed has a long forming length at one time, reasonable structural force, and high safety. During construction, it does not require traffic control or traffic conversion on the crossing road through guided and directional drilling, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/00E21D11/10E21D11/14E21B7/04E21B47/024C09K8/05
CPCC09K8/05E21B7/04E21B47/024E21D9/001E21D11/10E21D11/14
Inventor 李圣瑞陈怀光杨旭东孙雷雨刘洋洋郑光超贵玉锋宋海明谭有鹏
Owner POWERCHINA MUNICIPAL CONSTR GRP CO LTD
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