>> 自然科学版期刊 >> 2018年04期 >> 正文
不同弯矩作用时斜坡上单桩承载特性的数值模拟
供稿: 张建伟;胡明源;王宏权;李荣翔;徐宁;​仉文岗 时间: 2018-07-18 次数:

作者:张建伟胡明源王宏权李荣翔徐宁仉文岗

作者单位:河南大学岩土与轨道交通工程研究所河南大学土木建筑学院河南五建建设集团有限公司开封市同力基础工程有限公司重庆大学库区环境地质灾害防治国家地方联合工程研究中心

摘要:为研究不同弯矩作用对斜坡上单桩水平承载特性的影响,运用ABAQUS有限元分析软件建立45°斜坡模型,对不同弯矩荷载作用时斜坡上单桩桩身水平位移,桩身弯矩和桩前后土压力进行数值模拟。结果表明,随着桩顶弯矩荷载的增加,桩身水平侧移、桩身最大弯矩和桩前土压力均随之增加。桩顶弯矩的施加大大降低了斜坡上桩的水平承载力。

基金:国家自然科学基金资助项目(51508163,51608071);河南省产学研合作项目(132107000025);

关键词:斜坡;弯矩;承载特性;数值模拟;

Abstract:In order to study the effect of the horizontal bearing capacity of single pile on slope under different bending moments, ABAQUS software was used to establish a model for 45° slope. The horizontal displacement, bending moment as well as earth pressure before and behind pile were simulated under different moment loads.The results show that horizontal lateral-displacement, maximum bending moment of the pile as well as the earth pressure before pile increase along with the increase of the bending moment load. In practice, the bending moment can significantly reduce the level of bearing capacity of the pile on the slopes.

DOI:10.16186/j.cnki.1673-9787.2018.04.21

分类号:TU473.1

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