考虑土拱效应的抗滑桩临界桩间距计算

Analysis of the spacing between anti-slide piles considering soil-arch effect

合理确定抗滑桩布桩间距是滑坡防治工程的重要指标。根据土拱在桩后形成的位置,分别对土拱进行了受力分析。以拱脚处的土体静力平衡条件和土拱强度条件分别建立了基于桩后和桩间土拱的抗滑桩临界桩间距计算公式,并结合具体的工程案例进行了验证,为后续抗滑桩设计提供一定的参考。

Pile spacing is an important index during the design of anti-slide piles,according to the position of soil arch formed after the piles,respectively,analysis the force of the soil arching.Based on the static equilibrium conditions of soil and the strength conditions of soil arching,established the critical piles spacing formula,combined with specific engineering cases were verified,providing some guidance for the design of anti-slide piles.