1.重庆大学 土木工程学院，重庆400045;2.重庆市市政管理委员会，重庆 400000
汪源(1994—)，男，硕士研究生，主要从事岩土工程研究，（E-mail） captain_wangyuan@foxmail.com。
谢强，男，博士，教授，博士生导师，（Email）xieqiang2000@sina.com。
TU473
重庆市地质灾害防治中心科技项目(KJ2021050)；重庆市规划和自然资源局科研项目（DK2021Z05null01C）。
1.School of Civil Engineering，Chongqing University，Chongqing 400045，P. R. China;2.Chongqing Municipal Administration Committee, Chongqing 400000, P. R. China
Supported by the Science and Technology Project of Chongqing Geological Disaster Prevention Center (KJ2021050), and the Research Project of Chongqing Planning and Natural Resources Bureau (DK2021Z05null01C).
双排抗滑桩的推力分配问题在规范中没有明确说明。实际工程中，前后排抗滑桩的推力分配往往只能依靠工程师的经验判断。为研究双排桩布桩方式对桩受力的影响，寻找推力在双排桩中的分配规律，文中依托四川省丹巴地区某公路滑坡治理项目，通过建立有限元模型，分析不同布桩条件下，边坡的安全系数及滑坡推力在前后排抗滑桩上的分配情况。结果表明，桩的布设方式对边坡的安全性有重要影响，存在1个合理桩排距，使滑坡的安全系数达到最大；前后排桩的推力分配比例，会随着不同的布桩条件而变化，是一个动态的过程，当排距为30 m时，前后两排桩承担的推力最为接近。
At present, there is no clear design specification for the design of double-row anti-slide piles. In the design process, the thrust distribution between the front-row and back-row anti-slide piles is solely based on experiential judgement. To investigate the thrust share ratios basis between front-row and back-row piles, this paper establishes a series of finite element models to analyze the safety factor of slopes and the magnitude of landslide thrusts under various pile conditions. The findings show that the layout of piles has a significant impact on the slope’s safety. There exists an optimal pile spacing that maximizes the safety factor against landslides. Moreover, the proportion of thrust distribution between the front-row and back-row piles varies with different pile conditions. When the row spacing is set to 30 m, the thrust of the two rows of piles is the most balanced.
汪源,谢强,张建华.双排抗滑桩布设方式对推力分配的影响[J].重庆大学学报,2023,46(8):78-87.
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