摘要
本文基于工程实践,运用工程类比分析、数值模拟、实施现场试验段、现场监控测试等方法,研究上下交叉的小净距隧道的开挖和支护方案,保证了在顶板厚度仅2.9m的情况下,客运铁路专线双线隧道顺利下穿高速公路隧道。
Based on the railroad Guantouling tunnel DK280 ＋950 -281 ＋ 100 through under the highway tunnel,the excavation method and support scheme are dicussed by the means of engineering analogical method, numerical analysis, in-situ testing section, monitoring measurement. It is assured that the double llne tunnel of passenger dedicated railway lines crosses under the highway tunnel successfully under the condition that the thickness of the tunnel roof is only 2.9m.
出处
《地下空间与工程学报》
CSCD
2008年第3期572-577,共6页
Chinese Journal of Underground Space and Engineering
关键词
小净距隧道
开挖方案
数值模拟
监控量测
small interval tunnel： excavation method
numerical analysis
monitoring measurement
