Cavity type ecological sheet pile and construction method thereof: Fid-Bau Portal

Cavity type ecological sheet pile and construction method thereof

HUANG FENG / SHU FANGXUE / ZHANG FANGMEI

The invention discloses a cavity type ecological sheet pile and a construction method thereof.The cavity type ecological sheet pile comprises a first sheet body and a second sheet body arranged on the downstream face of the first sheet body, the section of the second sheet body is in a V shape, and a triangular cavity used for containing sludge or plants is formed between the first sheet body and the second sheet body; a first ecological through hole is formed in the upstream face of the first plate body and communicated with the triangular cavity, and a second ecological through hole is formed in the second plate body and communicated with the triangular cavity; by arranging the first plate body and the second plate body and forming the newly-added triangular cavity, the plate pile structure is optimized, the mechanical properties such as bending resistance of the plate pile are improved, in addition, due to buffering of the triangular cavity and cavity content, plant root systems or stone, sludge and the like, water flow cannot directly scour a supporting soil body, and the supporting effect is improved. And the first ecological through holes in the upstream face of the triangular cavity and the second ecological through holes in the second plate body are staggered in a high-low mode, and the supporting soil body is not prone to overflowing after being vibrated and extruded.

本发明公开了一种空腔式生态板桩及其施工方法，包括第一板体、设置在所述第一板体背水面的截面为V字形的第二板体，所述第一板体与所述第二板体之间形成用于容纳淤泥或植物的三角形空腔，所述第一板体的迎水面上开设有第一生态通孔并与所述三角形空腔连通，所述第二板体上开设有第二生态通孔并与所述三角形空腔连通；本发明通过设置第一板体和第二板体双层板体并形成新增三角形空腔，优化板桩结构，提高板桩的抗弯等力学性能，此外，三角形空腔及空腔内容物，植物根系或石块淤泥等的缓冲，水流无法直接冲刷支护土体，且三角形空腔迎水面的第一生态通孔以及第二板体上的第二生态通孔高低错开，支护土体受震动、挤压后不易溢出。

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