Nonblasting Construction Technologies for Mined Tunnel Crossing  Underneath Buildings: Case Study on A Mined Section on  ChangshaZhuzhouXiangtan Intercity Railway

doi:10.3973/j.issn.1672-741X.2015.S2.016

Tunnel Construction ›› 2015, Vol. 35 ›› Issue (S2): 91-96.DOI: 10.3973/j.issn.1672-741X.2015.S2.016

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Nonblasting Construction Technologies for Mined Tunnel Crossing  Underneath Buildings: Case Study on A Mined Section on  ChangshaZhuzhouXiangtan Intercity Railway

LIU Junwei, CAO Shengli

(China Railway Tunnel Stock Co., Ltd., Zhengzhou 450000, Henan, China)

Received:2015-05-26 Revised:2015-07-01 Online:2015-12-15 Published:2015-12-24

Abstract

Abstract:

The Changsha Municipal Government StationLeifengdadao Station mined section on ChangshaZhuzhouXiangtan intercity railway has to cross underneath Xiyuan Hotel on the ground. A series of technologies, including using hydraulic fracturing machine,milling machine, hydraulic hammer and submersible drilling rig + hydraulic hammer, have been adopted and put into comparison. In the end, the method of submersible drilling rig + hydraulic hammer is chose, and the safety of building is guaranteed.

Key words: intercity railway, mined tunnel, cross underneath buildings, hydraulic fracturing machine, milling machine, submersible drilling rig + hydraulic hammer, risk control

CLC Number:

U 455

LIU Junwei, CAO Shengli. Nonblasting Construction Technologies for Mined Tunnel Crossing  Underneath Buildings: Case Study on A Mined Section on  ChangshaZhuzhouXiangtan Intercity Railway[J]. Tunnel Construction, 2015, 35(S2): 91-96.

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Nonblasting Construction Technologies for Mined Tunnel Crossing  Underneath Buildings: Case Study on A Mined Section on  ChangshaZhuzhouXiangtan Intercity Railway

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