A large-scale granite tensile collapse occurred on the right side of a super major bridge of a highway.Under the interference of many unfavorable conditions such as the residual dangerous rock mass at high level of slope,it is necessary to repair and ensure the two-way traffic of the left side in a short time.The whole process of emergency rescue is introduced in detail.On the basis of geological investigation and analysis of the disaster site and collapse dangerous rock,the comprehensive emergency rescue plan and recovery and reconstruction steps of"all-round monitoring,measurement,early warning and forecast,rock fall path intercepting and guiding+protection of existing engineering structures,stratified,multiple directional small-dose blasting,and removal of collapse accumulation"are formulated.The emergency rescue was successfully completed in only 6 days,providing a strong guarantee for the safety of bridge restoration and reconstruction construction.
关键词
公路灾害/山体崩塌/墩柱断裂/地质调查/监控测量/清危/组合加固/应急处置
Key words
highway disaster/mountain collapse/pier fracture/geologic survey/monitoring measurement/dangerous rock removal/composite reinforcement/emergency disposal
维普
万方数据