葛州坝水库蓄水后的地形变特征及其机理

CHARACTERISTICS AND MECHANIST OF DEFORMATION IN THE GEZHOUBA RESERVOIR AFTER RETAIN WATER

本文论述了长江葛州坝水库蓄水后的形变特征,计算了坝库区沉降变形的挠曲线,讨论了区域地形变机理,指出区域地层回升是由于扩容效应,而扩容效应之所以发生,是因为岩体的浸湿膨胀。

This treatise has expounded a characteristis about deformation of the Gezhouba reservoir on the Yongzhi after retain water, and computed the deflection curve of subsidence in the reservoir area and near. Than, it has discussed a mechanism of stratum deformation in the area, has pointed out that the subsideuce has uplft again with dilation effect. And the dilation effect occurs because of expansion of the soaked rocks.