西南某电站岸坡深裂缝形成机制的物理模拟试验

Physical experiments on the formation mechanism of the deep-seated fracture at abutment slope of a southwest hydropower station

对于岸坡裂隙研究 ,已经比较成熟 ,而对于岸坡正常卸荷带以内发育的深大裂缝 ,至今仍未有较为成熟的结论。在西南某电站工程坝址区岸坡中 ,发育着大量的深大裂缝 ,直接危及到工程布置与安全。本文在详实的野外工作基础上 ,对其形成机制进行了室内模拟试验 ,得出了较为可信的结论 ,同时为验证野外初步判断给出了有力的证据。

There are sophisticated theories in the study of fissures of river bank slopes,but the formation mechanism of deep-seated fracture located outside of the regular unloading zone has not been well interpreted.In the bank slope of a dam site of the abutment slope of Jinping first stage hydropower station,there are many deep-seated fractures which will directly affect the the engineering layout and endanger safety of projects.Based on the detailed field work, the formation mechanism of the deep-seated fracture is studied by physical simulation experiments,and credible conclusions are obtained in this paper.The results provide powerful evidence for primary field judgment.