Analysis of influencing factors of earth pressure behind pile-slab wall based on unloading arch principle
In order to find out the influencing factors of the earth pressure behind the retaining plate between piles,a slope with strong weathered mudstone in Jilin Province is taken as the research object.Based on the unloading arch method,the mechanical calculation model of the soil arch between piles is established,and then,the applicability of the calculation of the earth pressure behind the retaining plate with different calcula-tion methods is compared and studied.Finally,the influence of the factors such as the distance-width ratio of the pile-plate wall,the cohesion of the soil and the internal friction angle on the earth pressure behind the re-taining plate is analyzed.The result shows that,the earth pressure obtained by the calculation model in this pa-per is close to the calculation result of the silo method(specification method),which is more in line with the engineering practice;the earth pressure on the retaining plate between piles is proportional to the distance-width ratio of the pile-plank wall,and inversely proportional to the soil strength parameters(cohesion and in-ternal friction angle).
Strongly weathered mudstonePile-board wallRetaining plateSoil pressureDistance-width ratio
万方数据
维普
