考虑桩前土体抗力的抗滑桩内力计算  

Internal Dorce Calculation of Anti-slide Pile Considering the Soil Resistance before Pile

作　　者：宋政群 刘晓燕[2] 周志军[2] 

机构地区：[1]云南省公路开发投资有限责任公司,云南昆明650200 [2]长安大学公路学院,陕西西安710064

出　　处：《水利与建筑工程学报》2017年第6期37-41,共5页Journal of Water Resources and Architectural Engineering

摘　　要：为得到切合实际的抗滑桩内力计算公式,考虑桩前土抗力的作用,基于对不同岩性滑坡推力的分布形式的总结,将二次函数作为滑坡推力的分布函数,推导出考虑桩前土体抗力的抗滑桩内力计算公式。结果表明:推导的考虑桩前土体抗力的抗滑桩内力计算方法,可根据工程实际选择滑坡推力的分布形式,使计算结果更加符合实际情况。通过实例验算对比分析,相比于传统滑坡推力分布形式,考虑桩前土体抗力后推导的公式能有效提高抗滑桩内力计算精度。In order to get practical anti-slide pile internal force calculation formula which can achieve its optimal design,the anti-slide pile internal force need to be considered. First,the distribution form of different rock landslide thrust is summarized. Then the two quadratic function is used as the distribution function of landslide thrust and the resistance of soil before pile,and the calculation formula that considers the resistance of soil before pile is deduced. The results show that according to practical engineering,the distribution form of resistance of soil before pile can be chosen. Thus calculation result by the calculation method deduced conforms to the actual situation.Through the contrastive analysis of example,the calculation method deduced in this paper can improve the calculation accuracy and efficiently of internal force of anti-slide pile comparing to traditional calculation formula based on triangular distribution of resistance of soil before pile.

关 键 词：边坡工程 抗滑桩 滑坡推力 桩前土体抗力 内力计算 

分 类 号：TU473[建筑科学—结构工程]