冰碛湖溃决的冰滑坡力学机制与危险性评价

摘要

首先对前缘冰川建立力学模型,推导出冰川滑动的临界冰川厚度;再根据冰川的类型计算出冰川平均厚度,判断冰川的稳定性;最后采用溃决危险性指数Idl对阿亚错等五个冰湖进行了溃决危险性评价,进而得出了合理的评价结果。%The paper establishes the dynamic model at the front glacier,induces the critical glacier thickness of the slide of glaciers,calculates the average thickness of glaciers according to the types of the glaciers,judges the stability of the glaciers,adopts the outburst hazard index Idl to undertake the outburst hazard evaluation of five icy lakes,and concludes the reasonable evaluation results.