辛安泉供水改扩建工程总干1#隧洞塌方处理措施研究

Study on the Treatment Measures of Total Dry Tunnel 1# Collapse for Xin Anquan Water Supply Renovation and Expansion Project

辛安泉供水改扩建工程总干1#隧洞某支洞位于黄土沟谷冲击区,因不良地质及施工环境复杂,输水隧洞建设多因渗水、涌水问题而带来塌方冒顶。针对隧洞塌方进行讨论分析,提出不同塌方冒顶的处理施工方法,对不同地质条件下塌方洞段进行方案对比,提出经济性、技术性综合处理方案应对不良地质、施工条件隧洞施工建设难题。在总1#隧洞塌方事故处理中,采用综合分析,多种方案比选,制定了合理方案,有效避免了因处理措施不当而带来的质量隐患,并取得了良好效果。

A hole for total dry 1# tunnel of Xin Anquan water expansion project is located in the Loess Gully alluvial plain region, due to adverse geological and complex construction environment, construction of water-carrying tunnel is due to water seepage, and water gushing problems caused collapse. For analyzing tunnel collapse, it puts forward different construction methods for different collapses, scheme comparison of different geological conditions of landslides in the tunnel sections, the article puts forward the economic and technical comprehensive treatment plans, which is to answer some problem in the condition of adverse geology and construction situation. During the solution of the total dry 1#tunnel collapse accident treatment, the comprehensive analysis or other programs is to be chosen so that we can effectively avoid the quality problems caused by improper treatment measures, and achieved good effect.