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Water level variable amplitude area covering layer slope supporting structure and construction method thereof
The invention relates to a water level variable amplitude area covering layer slope supporting structure and a construction method thereof, and belongs to the technical field of hydropower station covering layer slope supporting structures. The water level variable-amplitude area covering layer slope supporting structure comprises a water level variable-amplitude area located on a covering layer slope, a plurality of rows of steel sheet piles are arranged at intervals in the slope surface inclination direction of the water level variable-amplitude area, and an inverted filter drainage structure is laid on the slope surface of the water level variable-amplitude area. The inverted filter drainage structure comprises a coarse sand layer, a gravel layer, a first dense mesh, a pebble layer and a second dense mesh which are sequentially arranged from bottom to top, and the mesh diameter of the first dense mesh is smaller than the gravel particle size of the gravel layer; the mesh diameter of the second dense mesh is smaller than the pebble particle size of the pebble layer; hinged slope protection bricks are fixedly arranged on the upper surface of the anti-filtration drainage structure and anchored to the slope surface through grouting anchor rods, a plurality of sand wells are arranged below the anti-filtration drainage structure, and the upper ends of the sand wells intersect with the bottom surface of the anti-filtration drainage structure.
本发明涉及一种水位变幅区覆盖层边坡支护结构及其施工方法，属于水电站覆盖层边坡支护结构技术领域。本发明所述的水位变幅区覆盖层边坡支护结构包括位于覆盖层边坡上的水位变幅区，沿着水位变幅区的坡面倾斜方向间隔布置多排钢板桩，水位变幅区的坡面上铺设有反滤排水结构，反滤排水结构包括自下往上依次设置的粗砂层、碎石层、第一密目网、卵石层和第二密目网，第一密目网的网孔直径小于碎石层的碎石粒径；第二密目网的网孔直径小于卵石层的卵石粒径；反滤排水结构的上表面固定设置有铰接式护坡砖，铰接式护坡砖通过灌浆锚杆锚固于坡面上，反滤排水结构的下方设置有多个砂井，砂井的上端与反滤排水结构的底表面相交。
Water level variable amplitude area covering layer slope supporting structure and construction method thereof
The invention relates to a water level variable amplitude area covering layer slope supporting structure and a construction method thereof, and belongs to the technical field of hydropower station covering layer slope supporting structures. The water level variable-amplitude area covering layer slope supporting structure comprises a water level variable-amplitude area located on a covering layer slope, a plurality of rows of steel sheet piles are arranged at intervals in the slope surface inclination direction of the water level variable-amplitude area, and an inverted filter drainage structure is laid on the slope surface of the water level variable-amplitude area. The inverted filter drainage structure comprises a coarse sand layer, a gravel layer, a first dense mesh, a pebble layer and a second dense mesh which are sequentially arranged from bottom to top, and the mesh diameter of the first dense mesh is smaller than the gravel particle size of the gravel layer; the mesh diameter of the second dense mesh is smaller than the pebble particle size of the pebble layer; hinged slope protection bricks are fixedly arranged on the upper surface of the anti-filtration drainage structure and anchored to the slope surface through grouting anchor rods, a plurality of sand wells are arranged below the anti-filtration drainage structure, and the upper ends of the sand wells intersect with the bottom surface of the anti-filtration drainage structure.
本发明涉及一种水位变幅区覆盖层边坡支护结构及其施工方法，属于水电站覆盖层边坡支护结构技术领域。本发明所述的水位变幅区覆盖层边坡支护结构包括位于覆盖层边坡上的水位变幅区，沿着水位变幅区的坡面倾斜方向间隔布置多排钢板桩，水位变幅区的坡面上铺设有反滤排水结构，反滤排水结构包括自下往上依次设置的粗砂层、碎石层、第一密目网、卵石层和第二密目网，第一密目网的网孔直径小于碎石层的碎石粒径；第二密目网的网孔直径小于卵石层的卵石粒径；反滤排水结构的上表面固定设置有铰接式护坡砖，铰接式护坡砖通过灌浆锚杆锚固于坡面上，反滤排水结构的下方设置有多个砂井，砂井的上端与反滤排水结构的底表面相交。
Water level variable amplitude area covering layer slope supporting structure and construction method thereof
水位变幅区覆盖层边坡支护结构及其施工方法
LI ZHONGSHUANG (author) / ZHAO XIAOPING (author) / BAO ENZE (author) / JIA PAN (author) / WANG YUCHUAN (author)
2023-11-24
Patent
Electronic Resource
Chinese
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