顶山软岩隧洞底板混凝土裂缝分析及处理

Analysis and Processing for Concrete Crack of Ledger Wall of Soft Rock Tunnel Underneath Mountain

不论是有压隧洞还是无压隧洞,当其隧洞衬砌混凝土产生裂缝后,常伴有渗水现象,会严重破坏混凝土结构的安全,影响隧洞的使用寿命,而且裂缝的处理还费工费时,增加工程成本和延长工期。针对新疆某工程,论述了软岩隧洞裂缝产生的原因、防止措施及处理方法,其成功经验对类似工程建设有着积极的作用。

When cracks are produced in the concrete liner of tunnel, whether it is a pressure or a free-flow tunnel, often following with seepage, the safety of concrete structure would be damaged seriously to influence the working life of the tunnel. Furthermore, the processing for the cracks would consume work and time, so to increase the costs of the project and extend the time limit of the project. According to a project in Xinjiang, the causes prevention measures and treatment methods for the cracks in a soft rock tunnel are discussed, and the successful experiences have a positive effect for the similar projects.