ISSN 2096-4498
CN 44-1745/U
Tunnel Construction ›› 2016, Vol. 36 ›› Issue (11): 1372-1378.DOI: 10.3973/j.issn.1672-741X.2016.11.014
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CHEN Ruizheng, HU Weidong*, LI Xinping
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Abstract:
The connection section between left line of Line No. 2 of Zhengzhou Metro and connecting tunnel of Line No. 1 and Line No. 2 are constructed together. The surrounding environment is complicated and the construction schedule is tight. The large crosssection tunnel construction technology, mining method, is adopted to enlarge the shield tunnel. The section is bored by shield, and then the steel segments, the bench method of central pillar + temporary invert and inverse enlarging method are adopted. The construction practice shows that the ground settlement and the construction schedule have been controlled effectively. The abovementioned technologies can provide reference for similar projects in the future.
Key words: shield method, mining method, enlargement, bench method, steel segment
CLC Number:
U 455.4
CHEN Ruizheng, HU Weidong, LI Xinping. Construction Technologies for Large Crosssection Tunnel Using Mining Method to Enlarge Shield Tunnel[J]. Tunnel Construction, 2016, 36(11): 1372-1378.
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http://www.suidaojs.com/EN/Y2016/V36/I11/1372