ISSN 2096-4498 CN 44-1745/U
隧道建设(中英文) ›› 2015, Vol. 35 ›› Issue (1): 83-88.DOI: 10.3973/j.issn.1672-741X.2015.01.014
• 施工技术 • 上一篇 下一篇
王玥, 史继尧
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作者简介:
WANG Yue, SHI Jiyao
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摘要:
为提高大断面黄土隧道关键部位的施工安全,通过监测数据分析,总结宝兰客专14标多个三岔口的变形规律,指出主隧道中台阶开挖和仰拱浇筑分别是变形发展和变形控制的关键时期,由此预测了古城岭隧道3#斜井三岔口的最大变形,并优化了开挖方法,最终较好地控制了变形。
关键词: 大断面黄土隧道, 宝兰客运专线, 监测, 三岔口, 前期变形, 开挖优化
Abstract:
The regularity of the deformation of the junction sections of tunnels in No. 14 bid section of BaojiLanzhou passenger dedicated line is studied on basis of the monitoring results, so as to improve the construction safety of critical positions of large crosssection loess tunnels. It is concluded that the intermediate bench excavation and the invert casting are critical points in terms of deformation development and deformation control. Furthermore, the maximum deformation of the junction section of No. 3 inclined shaft of Guchengling tunnel is predicted on basis of the study results, and the excavation method is optimized accordingly. In the end, the deformation of the mentioned junction section has been well controlled.
Key words: large crosssection loess tunnel, BaojiLanzhou passenger dedicated line, monitoring, junction section, early deformation, excavation optimization
中图分类号:
U 455.49
王玥, 史继尧. 大断面黄土隧道三岔口区域前期变形分析及开挖优化[J]. 隧道建设, 2015, 35(1): 83-88.
WANG Yue, SHI Jiyao. Early Deformation Analysis and Excavation Optimization of Junction Sections of Large Crosssection Loess Tunnels[J]. Tunnel Construction, 2015, 35(1): 83-88.
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