摘要
结合工程实例，基于FLAC3D数值模拟方法，分析了不同桩间距下桩间土体拱效应的产生机理，直观有效地反应了桩间距优化后的加固效果，利用强度折减法计算预应力锚索抗滑桩加固后的滑坡体稳定性系数。结果表明：当桩间距为2．0～3．5倍桩宽时，桩间土拱效应得到充分发挥，并利用数值模拟优化。
Depending on case study, the mechanism of soil arching effect between piles under different pile spacing was analyzed by FLAC3D numerical simulation, reflecting the reinforcement result after pile spacing optimization directly; then the landslide stability coefficient after reinforcement by prestressed-anchor anti-slide pile was calculated by strength reduction method. The results show that, when the pile spacing is 2.0 - 3.5 times the pile width, the soil arching effect between the piles get full play, and can be optimized through numerical simulation.
出处
《路基工程》
2014年第6期135-139,144,共6页
Subgrade Engineering
关键词
预应力锚索抗滑桩
桩间距
土拱效应
FLAC3D数值模拟
强度折减法
prestressed-anchor anti-slide pile
pile spacing
soil arching effect
FLAC3D numerical simulation
strength reduction method
