ISSN 2096-4498
CN 44-1745/U
Tunnel Construction ›› 2013, Vol. 33 ›› Issue (7): 586-590.DOI: 10.3973/j.issn.1672-741X.2013.07.010
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LI Youye, REN Guochen
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Abstract:
At present, the invert and filling construction of highspeed railway tunnels has too many procedures, which induces slow construction progress and, in the end, delays the project schedule. In the paper, the construction scheme of inverts and their filling normally adopted in the construction of doubletrack highspeed railway tunnels in Grade III rock mass is analyzed and optimized, and a new rapid technology for the invert and filling construction, which includes long trestle, slip form and separating the filling construction from the invert construction, is developed. The new construction technology developed has been applied in the construction of Naji tunnel on YunnanGuangxi railway, which increases the invert and filling construction rate from 96 m/month to 175 m/month.
Key words: highspeed railway, Grade Ⅲ rock mass, tunnel, invert, filling, long trestle, concrete casting by slipform
LI Youye, REN Guochen. Rapid Construction Technology for Inverts of Doubletrack Highspeed Railway Tunnels in Grade Ⅲ Rock Mass[J]. Tunnel Construction, 2013, 33(7): 586-590.
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URL: http://www.suidaojs.com/EN/ 10.3973/j.issn.1672-741X.2013.07.010
http://www.suidaojs.com/EN/Y2013/V33/I7/586
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