NGHIÊN CỨU BIỆN PHÁP XỬ LÝ ĐỘ NHÁM CỦA MÓNG CÔNG TRÌNH THỦY LỢI NHẰM TĂNG KHẢ NĂNG CHỐNG TRƯỢT

Abstract

The hydraulic works on soft soil clay with large horizontal force are easily unstable. For Movable Caisson Dam is a type of lightweight dam, is applied to build in the tidal area so large horizontal force makes it unstable more. The interesting issue is to research the method of stability of structures. Experiments were performed at foundation ditch in Ca Mau, Minh Ha sluice, and sliding concrete foundation at site construction. To increase this friction, grave layers had sprayed under the slab foundation. The result shows friction between movable Caisson Dam and clay soil increase much. This paper demonstrates experiments to calculate optimization of the thickness of gravel layer to ensure the stability of structure and impermeability of bottom slab foundation.