在中国的 Shijiazhuang 太原高速度的旅客铁路线上的 Nanliang 高速度铁路隧道的节是 instrumented 并且为它的机械性质和表演学习了。为隧道的生气的节是 300 m2 并且在中国为铁路隧道作为最大的生气的节被分类。直在 situ 试验性的研究,隧道的机械学的性质被识别包括包围岩石压力,沿着隧道周界和主要支持和衬里的安全的集中组织。把测量数据基于这个领域,对在硬岩石中的大跨度的深隧道的包围岩石压力要求在垂直方向被推荐为两倍山峰类型,褶层线类型为水平压力被推荐。结果建议那个 Promojiyfakonovs 理论离监视价值很靠近。特定的建议也在隧道结构为螺栓的使用被产生。数字模拟被用来评估隧道的安全,它证实当前的设计能满足当前的代码的要求。
A section of the Nanliang high speed railway tunnel on Shijiazhuang-Taiyuan high-speed passenger railway line in China was instrumented and studied for its mechanical properties and performances. The cross section for the tunnel was 300 m2 and is classified as the largest cross section for railway tunnels in China. Through in situ experimental studies, mechanistic properties of the tunnel were identified, including the surrounding rock pressure, convergences along tunnel perimeter and safety of primary support and lining structure. Based on the field measured data, the surrounding rock pressure demand for large-span deep tunnel in hard rock is recommended as double peak type in the vertical direction and fold line type was recommended for horizontal pressure. The results suggested that Promojiyfakonov's theory was most close to the monitored value. Specific recommendations were also generated for the use of bolts in tunnel structures. Numerical simulation was used to evaluate the safety of the tunnel and it confirmed that the current design can satisfy the requirement of the current code.