单排抗滑桩沿桩长方向土拱效应分布研究  

Distribution study on the soil arch effect along the direction of the pile length of single-row anti-slide piles

作　　者：赵晓坷 雷用[1] 张泽健 胡明[1] 

机构地区：[1]后勤工程学院军事土木工程系,重庆401311 [2]后勤工程学院岩土力学与地质环境保护重庆市重点实验室,重庆401311

出　　处：《工程勘察》2015年第6期27-32,共6页Geotechnical Investigation & Surveying

摘　　要：本文在前人对单排抗滑桩土拱效应和合理桩间距研究成果的基础上,对抗滑桩桩间土拱的成拱机理进行了简要阐述,结合土拱自身受力及变形特点,利用数值模拟的方法对合理桩间距条件下单排抗滑桩土拱效应的空间分布规律进行了研究。通过分析土体的应力及位移情况,发现土拱在不同高度条件下的分布是不同的,同时呈现一定的规律性。并且通过研究表明土拱具有一定的自身调节能力,以适应不同滑坡推力的作用。Based on the study on soil arch effect of the single-row anti-slide piles and the reasonable pile space by predecessors,the mechanism of the soil-arching between anti-slide piles is briefly reviewed.Combined with the deformation characteristics and mechanical properties of soil-arching, the spatial distribution of the soil-arching,which belongs to the single-row anti-slide piles of reasonable pile space,is studied by using the method of numerical simulation. With the analysis on the stress and displacement of soil mass,it is found that the soil-arching distribution is different at different heights,and presents certain regularity. The study also shows that the soil-arching is of certain self-adjustment ability,by which to adapt to the different landslide thrust.

关 键 词：抗滑桩 土拱效应 空间性 

分 类 号：TU473.1[建筑科学—结构工程]