泰沙基地基承载力系数的完整解析解  

The Complete Analytical Formula of K.Terzaghi Ultimate Bearing Capacity Coefficient

作　　者：邱睿[1] 程国勇[1] 刘雪娟[1] 王一帆[1] 段淳[1] 

机构地区：[1]中国民航大学机场学院,天津300300

出　　处：《西部探矿工程》2011年第8期13-17,共5页West-China Exploration Engineering

基　　金：中央高校基本科研业务费项目(ZXH2009A002)

摘　　要：当前普遍采用的泰沙基极限承载力公式并未提供Nγ的解析解并且Nc的解析式有误。针对以上情况,根据地基土的极限平衡原理研究了条形基础泰沙基极限承载力系数,首次得到一般条件下Nγ、Nc解析解,验证了目前承载力系数Nq的正确性。然后分别计算得到基底完全粗糙与光滑两个特殊条件下三个承载力系数的数值解及相应的曲线以供查用。以上成果可以为地基极限承载力理论的应用及研究工作提供参考。In the currently used K.Terzaghi ultimate bearing capacity formula the coefficient Ny is not given,and the factor Nc is wrong in the analysis formula.To solve this problem,according to the ultimate balance theory in groundwork earth,the paper studies K.Terzaghi ultimate bearing capacity coefficient on strip foundation,at first acquires the analytical formula of Ny and Nc in general condition,and the correctness of the factor Nq is proved.At last,under the condition of absolute coarse and smooth foundation base,the numerical value of all the factor in K.Terzaghi ultimate bearing capacity formula are listed in a table and corresponding curve is provided,which is valuable for the application and research of the K.Terzaghi ultimate bearing capacity theory.

关 键 词：泰沙基公式 地基极限承载力 极限平衡原理 解析解 

分 类 号：TU44[建筑科学—岩土工程]