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枫树屯水库坝底高程为518.00m,坝顶高程为561.00m,在525.00m高程处存在一条缓倾结构面,该结构面在河床段已被挖断,现只存在于两坝肩525.00m高程。右岸产状为220°∠4°,左岸产状为55°∠3°。裂隙面较光滑平直,大部分闭合,局部存在泥夹碎屑至碎屑夹泥物质,贯穿整个基坑,倾向河床。经计算,由于受缓倾结构面影响,部分坝段深层抗滑稳定不能满足规范要求,设计中采用尾抗阻滑措施处理后,其深层抗滑稳定满足规范要求。
The elevation at the bottom of Maple Tuen Reservoir is 518.00m, with a crest elevation of 561.00m. There is a gently inclined structural plane at the height of 525.00m. The structural plane has been dug up in the riverbed section and is only present at 525.00m Elevation. The right bank is 220 ° ∠4 ° and the left bank is 55 ° ∠3 °. Fissure surface is smooth and straight, most of the closure, the local existence of mud clip debris to debris debris material, throughout the pit, the tendency of the river bed. It is calculated that due to the influence of the gently inclined structural plane, the deep anti-sliding stability of some dam sections can not meet the requirements of the specification. After the tail-anti-slip measures are adopted in the design, the deep anti-sliding stability of the dam sections meets the requirements of the code.