爆破筑坝引起的边坡稳定性问题

Problems of Slope Stability Caused from Blasting for Dam Construction

爆破筑坝对边坡稳定性的影响与爆炸能量和边坡性质有关，边坡性质由坡体地质条件所决定．本文主要从坡体地质条件出发，提出了定向爆破筑坝引起边坡失稳的4种类型及其力学机制，并分析了各类边坡问题的危害程度，可为进一步定量评估爆破对边坡稳定性影响提供理论模型依据．另外根据此理论还通过实例分析了柴石滩试验爆破时两岸边坡稳定性情况，对今后柴石滩爆破筑坝引起的边坡问题作了定性的预测．最后总结了爆破筑坝对边坡稳定性影响的研究方法和防治原则．

The problems of slope stability caused from blasting are concerned with blasting energy and slope nature. The slope nature is decided by the geological factors of slope. In this pa-per, the four classes of problem of slope stability caused from directional blasting for dam con-struction are proposed from engineering geologyview. The mechanical mechanism and the harm-fulness of each class of the problems is studied. This paper may be a good reference for quanlita-tive calculation of the stability of the slope quaked by blasting. In addition, a analysis of theproblems of slope stability caused frorn cheishitan test blasting is citied on that theory as a exam-ple. At last, the methods of studying the problems of slope stability caused from blasting aresummaried.