Ultra-long pipe shed pipe drawing method for mined metro station

A technology of shed pipe drawing method and station, which is applied in the field of ultra-long pipe shed pipe drawing method of underground excavation stations, which can solve the problems of difficult control of precision and short length of one-time drilling, so as to reduce weight and resistance and save temporary support The effect of cost and construction convenience

Active Publication Date: 2018-09-28
POWERCHINA MUNICIPAL CONSTR GRP CO LTD
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  • Abstract
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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 relatively 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 the description of the present invention, it should be understood that the terms "first", "second" and so on are only used for descriptive purposes, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features . Thus, a feature defined as "first", "second", etc. may expressly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0048] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, ...

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PUM

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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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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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