岩土力学2018，Vol.39Issue(3)：848-853,862,7.DOI:10.16285/j.rsm.2016.0206
基于模型试验的桩间距对组合式钢管抗滑桩抗滑效果的影响分析
Analysis of anti-sliding mechanism of steel tube piles with different spacings based on model test
摘要
Abstract
By using the large physical model test,this paper investigated on the mechanism of the component steel tube anti-sliding piles distributed in different spacings.The authors have compared factors affecting of the spacing on the mechanism of the anti-sliding among the pile top's distance,the cut-export distance,the bending moment distribution under changing loads and the destruction situation.The experiment results show that when the spacing is increased from 18.7 cm (3.9 times ofd the pile external diameter) to 23.5 cm (4.9d) and 28 cm (5.8d),the distance of pile top and cut-export increases gradually.Besides,the bending moment of the pile also increases gradually.But when the spacing is increased from 3.9d to 4.9d,the increase range of the distance and the bending moment are greater than that when the spacing is increased from 4.9d to 5.8d.Thus,during the design of the component steel tube anti-sliding pile,it is better to increase the spacing to 5.8d or more when the landslide thrust is small and decreases the spacing to 3.9d or less when the landslide thrust is large.Whether the landslide thrust is large or small,the component steel tube anti-sliding pile has a low-cost performance to treat landslide when the spacing is 4.9d.关键词
模型试验/组合式钢管抗滑桩/桩间距/滑坡/桩身弯矩/桩顶位移/剪出口位移Key words
model test/component steel anti-sliding pile/spacing/slope/bending moment of the pile/pile top distance/cut-export distance分类
建筑与水利引用本文复制引用
储召军,石少卿,孙建虎,李季,崔廉明..基于模型试验的桩间距对组合式钢管抗滑桩抗滑效果的影响分析[J].岩土力学,2018,39(3):848-853,862,7.基金项目
国家自然科学基金项目(No.51378495) （No.51378495）
国家科技支撑计划项目(No.2012BAK05B00) （No.2012BAK05B00）
重庆市自然科学基金重点项目(No.cstc2012jjB30004) （No.cstc2012jjB30004）
后勤工程学院研究生创新专项经费(2012) （2012）
重庆市研究生科研创新项目(2015).This work was supported by the National Natural Science Foundation of China (51378495),the National Science and Technology Supporting Plan Project (2012BAK05B00),Chongqing Natural Science Foundation (cstc2012jjB30004),Logistical Engineering University Innovation Fund for Graduate Students (2012) and the Innovation Fund of Chongqing for Graduate Students (2015). （2015）
