简述拦砂坝的坝址选择。 -题库考试答案搜索网

简述拦砂坝的坝址选择。

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2022-11-21 16:55

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正确答案

1.地质条件坝址附近无大的断裂通过，坝址处无滑坡崩塌，岸坡稳定性好，沟床有出露或基岩埋深较浅，坝基为硬性基岩密实的老沉积物。
2.地形条件：坝址处沟谷狭窄，坝上游沟谷开阔，沟床纵坡较缓，建坝后能形成较大的拦淤库容。
3.建筑材料坝址附近有充足的或比较充足的石料，砂等当地建筑材料。
4.施工条件坝址离公路较近，从公路到坝址的施工便道易修筑，附近有布设施工场地的地形，有可供施工的水源。

试题解析

标签：水土保持学林学

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