张家湾大型地下硐室群隔墙的稳定性研究

Research on the Partition Wall Stability of the Large Underground Cavern Group in Zhangjiawan

地下工程中相邻硐室的隔墙稳定性问题十分重要,不仅关系着相邻硐室在地下工程施工期间结构的安全,还直接影响工程造价以及工程建成后衬砌结构的长期安全性。基于张家湾大型地下硐室群,通过FLAC3D软件数值模拟,对施工阶段中隔墙的塑性区、变形区进行了分析,研究了不同厚度隔墙的稳定性,为现场施工提供理论支持。

The stability of the partition wall of neighboring cavern in underground engineering is very important.The partition wall stability not only related to the structural safety of underground engi-neering in period of construction,but also affect the construction costs and the long-term safety of lining structure after the completion of the underground engineering.Taking the large underground cavern group in Zhangjiawan as the research object,based on the FLAC3D numerical software,the plastic zone and de-formation are analyzed of the partition wall in the period of construction so as to analyze the partition wall stability of different thickness of large underground cavern group to provide theoretical reference for site construction.