斜壁桶形基础水平承载力计算方法  

Calculation method for horizontal bearing capacity of tapered bucket foundation

作　　者：刘金龙[1] 陈陆望[2] 王吉利[3] 汪东林[4] LIU Jin-long;CHEN Lu-wang;WANG Ji-li;WANG Dong-lin(Department of Civil Engineering , Hefei University , Hefei 230022, China;School of Resource and Environmental Engineering , Hefei University of Technology , Hefei 230009, China;Institute of Rock and Soil Mechanics , Chinese Academy of Sciences , Wuhan 430071, China;School of Civil Engineering , Anhui Jianzhu University , Hefei 230601, China)

机构地区：[1]合肥学院建筑工程系,合肥230022 [2]合肥工业大学资源与环境工程学院,合肥230009 [3]中国科学院武汉岩土力学研究所,武汉430071 [4]安徽建筑大学土木工程学院,合肥230601

出　　处：《南水北调与水利科技》2017年第4期123-128,共6页South-to-North Water Transfers and Water Science & Technology

基　　金：国家自然科学基金项目(41306088);院土木工程重点建设学科项目(2014xk04);院级学科带头人培养对象项目(2014dtr01)~~

摘　　要：基于斜壁桶形基础的空间受力状态和基本假定,利用极限平衡法推导得到了斜壁桶形基础的水平承载力表达式,并与模型试验结果进行对比,验证了该计算方法的可靠性。通过变动参数,分别探讨了桶壁倾角、地基反力比例系数、桶基顶部直径、桶基高径比、水平力作用点高度等水平承载力的影响及相对敏感性。计算表明斜壁桶形基础的水平承载力随着桶壁倾角的增大而急剧增大。研究结果有助于对传统桶形基础进行优化设计。Based on the thr eedimensional stress state and some assumptions of the taper ed bucket foundation,we used the limite quilibriummethod to obtain the calculation formula of horizontal bearing capacity of tapered bucket foundation,and comparedthe results with the model test results,and thus validated the reliability of the formula.Through varying different parameters,we analyzed the influence of the obliquity of bucket wall,propor tio nality coefficient of soil resistance,top diameter of bucketfoundation,height diameterratio of bucket foundation,and heig ht of acting point on the value of ho rizontal bearing capacity oftapered bucket foundation.It w as fo und that the horizontal bearing capacity increased rapidly as the obliquity of bucket wallincr eased.The results of this research are helpful to the optimization design of traditional bucket foundation.

关 键 词：斜壁桶形基础 水平承载力 极限平衡 倾角 

分 类 号：P754[天文地球—海洋科学]