摘要
隧道围岩内部位移为研究围岩变形、确定围岩松弛范围和检验支护参数是否合理的重要依据。通过采用多点位移计对通渝深埋隧道C1煤层围岩深部位移的量测,分析了围岩深部位移-时间特征、位移-深度特征和围岩松弛范围,预测了围岩的变形发展趋势,并对围岩的稳定性和支护参数的合理性进行了评价,对深埋隧道的设计和施工具有重要的指导意义。
Interior displacement character of tunnel surrounding rock provides an important basis for studying the surrounding rock deformation, confirming the surrounding rock looseness extension and verifying the validity of supporting parameter. In this article, according to measurement results of interior displacement of surrounding rock in C1 coal seam section of TONG YU deep tunnel by multi-point displacement meter, the interior displacement-time character, displacementdepth character and looseness extension have been analyzed, the deformation trends have been forecasted, and the stability of surrounding and validity of supporting parameter have been estimated, it has certain significance to design and construction of deep tunnel.
出处
《地下空间与工程学报》
CSCD
2005年第5期685-688,共4页
Chinese Journal of Underground Space and Engineering
基金
国家自然科学基金重点资助项目(50334060)
重庆大学引进人才资助项目
关键词
深埋隧道
煤层区
内部位移
变形预测
deep tunnel
coal seam section
interior displacement
deformation forecast
