摘要
隧道穿越断层破碎带时,较易发生地质灾害,针对该问题,采用超前小导管注浆的方式对围岩进行预加固处理,并在支护完成后对隧道处治效果进行监控量测,监测结果显示该处治方法保障了隧道开挖支护过程中围岩的稳定性,变形量满足隧道安全运营的初期支护设计要求。
When the tunnel passes through the fault cracking zone,it is easy to bring about the geological disaster in the course of digging.Here,the advanced small pipes for grouting are used to make pre-strengthening treatment,and the monitoring and measurement are made after anchoring.The monitoring results show that the method could protect the stability of the tunnel surrounding rocks in the excavation and anchoring,and the displacement could meet the tunnel＇s safety operation demand for the primary support designing.
出处
《水利与建筑工程学报》
2011年第4期97-99,共3页
Journal of Water Resources and Architectural Engineering
关键词
隧道
断层破碎带
小导管注浆
监控量测
tunnel
fault cracking zone
small pipe grouting
monitoring and measurement
