Abstract This study analyzes a new wharf structure using a method to calculate earth pressure on a covered type sheet-pile wharf. The earth pressure on the riverside of the sheet pile and the landside of the concrete compresol pile is calculated using the earth pressure theories of Coulomb and Rankine. The earth pressure of the landside of the sheet pile and riverside of the concrete compresol pile is deduced by considering the soil arching and plate-unloading effects and a parallel walls theory. To analyze the distribution of earth pressure on the unloading sheet-pile, geotechnical-centrifuge model tests were conducted to validate the design structure of the newly reconstructed wharf structure. The test results show that the earth pressure on the riverside of the sheet pile is high at the end of the wall, decreases slightly, initially, with the increase in the depth, and then increases rapidly. However, the earth pressure on the landside of the sheet-pile initially increases to a maximum with depth and then decreases slowly with depth. With the increase in depth, the earth pressure on the riverside of the concrete compresol pile increases, while that on the landside of the concrete compresol pile first increases and then decreases.

中文翻译：

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卸荷式板桩土压力：高桩梁板码头结构

摘要 本研究采用覆盖式板桩码头土压力计算方法对一种新型码头结构进行分析。板桩河侧和混凝土压实桩岸侧的土压力采用库仑和兰金的土压力理论计算。综合考虑土拱、卸板效应和平行墙理论，推导出板桩陆侧和混凝土压实桩河侧土压力。为分析卸载板桩的土压力分布，进行了岩土离心模型试验，以验证新改造码头结构的设计结构。试验结果表明，板桩河岸土压力在墙端偏高，略有下降，初期，随着深度的增加，然后迅速增加。然而，板桩陆侧土压力随着深度的增加先增大到最大值，然后随着深度缓慢减小。随着深度的增加，混凝土压管桩河侧土压力增大，而混凝土压管桩陆侧土压力先增大后减小。