在宝泉上水库开挖过程中,环库两岸发育有大小不一的冲沟,虽然冲沟覆盖层主要是可压缩性较小的碎石土,但相对岩质基础,其变形模量仅为1╱1000左右。考虑上水库库岸防渗形式(沥青混凝土防渗),为避免蓄水过程中基础软硬交接面产生过大的不均匀沉降,对其进行正确的分析与评价,是冲沟处理方案需要解决的突出地质问题。 During the excavation of Baoquan Upper Reservoir, gully of different sizes developed on both banks of the reservoir. Although the gully cover is mainly compressive crushed gravel soil, its deformation modulus is only relative to the rock mass About 1 ╱ 1000. Considering the seepage prevention form of the reservoir bank of the upper reservoir (asphalt concrete seepage control), in order to avoid excessive uneven settlement of soft and hard interface during water storage, correct analysis and evaluation of it is a solution to the gully treatment The outstanding geological problems.