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由于对丹江口工程设计的情况和坝区的地质条件了解的很少,只能根据两三天来同志们所介绍的情况和现场看到的地质现象发表一些粗浅的意见,不正确的地方还请同志们指正。一般地对坝基础软弱破碎带破处理,有三个目的:(1)在坝基结构方面,防止碎带区域坝体产生过大的沉陷,尤其不要产生过大的不均匀沉陷。使破碎带处的绝对沉陷量及相对沉陷量却限制在一定数量之内。同时使坝基不产生过大的拉应力。(2)使坝体在破碎带区域在抵抗滑动方面达到设计要求的稳定性。(3)在防渗和防水方面,要防止坝
Due to the Danjiangkou project design and the geological conditions of dam area to know very little, only two or three days comrades to introduce the situation and the site to see the geological phenomenon to express some superficial opinions, the incorrect place also please Comrades correct me. Generally, there are three purposes for breaking the weak broken belt of the dam foundation: (1) In the dam foundation structure, it is to prevent excessive damming in the dam body in the debris area, and in particular, it is not to generate excessive and uneven subsidence. So that the absolute settlement at the broken zone and the relative settlement is limited to a certain amount within. At the same time the dam foundation does not produce excessive tensile stress. (2) Make the dam body meet the design requirements stability in the area of broken zone in resisting sliding. (3) In the seepage and waterproofing, to prevent the dam