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在由疏松沉积物组成岸壁的河道上修建起水庫时,由于河道壅水,水面加宽,波浪作用加剧,常发生坍岸现象。在进行水庫设计时常时常要求对坍岸可能发展范围做出预测,以便于进行经济核算,岸壁上有用的場地利用规划及考虑预防措施等问题。在进行水庫坍岸预测时,只做出最终坍岸可能发展范围是不够的,重要的是要求做出水库蓄水不同年限时坍岸可能发展范围的预测。笔者在“关于水库下游区坍岸预测方法问题”一文中会对水库蓄水不同年限坍岸可能发展范围预测方法进行过叙述,本文想对该文中所叙述的方法做几点补充,并推荐一些参考资料。
When reservoirs are built on the river courses consisting of loose sediments, the phenomenon of bank collapse often occurs due to swollen water, widened water surface and intensified wave action. In designing reservoirs, it is often required to make predictions about the possible development of collapse banks in order to facilitate economic accounting, useful site utilization planning on shore walls, and consideration of preventive measures. When predicting bank collapse, it is not enough to make the ultimate possible extent of collapse. It is important to make a prediction of the possible extent of bank collapse at different years of reservoir impoundment. In the article “Problems about predicting method of bank collapse in downstream area of reservoir”, this article will describe the prediction methods of the possible development range of bank collapse in different years of reservoir impoundment. This article would like to make some supplements to the methods described in this article and recommend some Reference material