大跨扁平浅埋隧道安全风险评估研究

Study on security risk evaluation of large-span flat shallow tunnel

以龙头山隧道为例,对该隧道主要风险事件进行了分段分析与综合评价,并提出了降低风险的对策,指出在采取合理的风险控制措施后,可以大大降低隧道工程建设风险,将隧道总体风险水平控制在可接受范围。

Taking Longtoushan tunnel as an example,the paper carries out sectioning analysis and comprehensive evaluation of major risk events,puts forward countermeasures of reducing risks,and finally points out that： after adopting rational risk controlling measures,it can greatly reduce tunnel engineering construction risk,furthermore,the integral tunnel risk level is controlled within acceptable scope.