坝区软弱夹层
soft interlayer of dam zone
薄层、陡倾角灰岩、夹软弱页岩层状
thin and steep dip limestone containing soft shale
不均匀软弱土层
uneven strata of soft soil
低速软弱夹层和地层裂缝
Low-velocity layer and fractures
富水软弱围岩
plenty water weak surrounding rock
关节源性肌肉软弱
arthrogenous muscle weakness
煤系软弱(夹)层
Adhesion and proliferation
溶蚀软弱夹层
dissoluble weak intercalation
软弱粉土地基
Soft-weak silt foundation