隧道围岩大变形信息化施工

Information-aided Construction of Tunnels in Surrounding Ground with Large Deformation Potential

建议以实施隧道监控量测的必测项目为主导,为围岩和支护的变形过程把脉,强调监控量测信息的时效性及其核心指导作用,并依据工程实例——在乌鞘岭隧道9#斜井中,围岩和支护出现大变形状态下,评判初期支护的安全性、经济性,探讨初期支护参数合理性和衬砌施作时机。建立一套简洁的监控量程实施操作系统,努力实现隧道施工过程信息化,在施工实践中协调各个关键环节,并在实际的施工效果中得到检验。

During the construction of No. 9 inclined shaft of Wushaoling tunnel, large deformation occurs to the surrounding rock mass and the reinforcement structure. In the paper, the safety and economy of the primary reinforcement structure are evaluated and the rationality of the primary reinforcement parameters and the lining installation timing are discussed. It is proposed that enough attention should be paid to the compulsory monitoring items of tunnels so as to master the deformation process of the surrounding rock mass and reinforcement structure. The time validity and fundamental guidance significance of the monitoring data are emphasized. It is proposed that a brief monitoring implementation system should be established so as to achieve information-aided tunnel construction. During the tunnel construction, the key construction processes should be adjusted in accordance with the monitoring data and the monitoring data should be verified in the construction.