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倾倒变形体作为一种不良地质体存在,由于其所引发的地质灾害问题时有发生,其影响在工程建设中越来越明显。在雅砻江上游某水电站坝轴线右岸上游,由于担心后期蓄水后倾倒变形岩体发生次生地质灾害危及大坝及库周人员、设施的安全,需要查清该倾倒变形体的规模以便采取处理方法,通过地震折射层析技术探测工作对倾倒变形岩体的埋藏深度做了具体的探测工作,同时结合该区域地质资料分析倾倒变形岩体的形成机制,对地震折射层析成像资料进行了综合分析,查明了测区边坡变形岩体的埋藏深度及分布情况,为工程设计提供了依据。
Due to the geological disasters caused by the dumping deformation body as a kind of bad geological body, its influence is more and more obvious in the engineering construction. In the upper reaches of the right bank of the dam axis of a hydropower station upstream of the Yalong River, due to the fear of secondary geological disasters in the dumping deformed rock mass after the post-impoundment, which would endanger the safety of dams and staffs and facilities in the reservoir area, it is necessary to find out the scale of the dumping deformation body in order to take The method of seismic reflection tomography is used to detect the burial depth of dumping deformation rock mass. Based on the geological data of this area, the forming mechanism of dumping deformation rock mass is analyzed, and the data of seismic refraction tomography Through comprehensive analysis, the burial depth and distribution of the deformed rock mass in the slope area of the survey area were ascertained, which provided the basis for engineering design.