【摘要】 《建筑地基基础设计规范》GBJ7-89中给出了根据土的物理、力学指标查表确定承载力的方法,该方法在将实验获得的基本物理力学数据回归分析的基础上,由承载力基本值计算得到承载力标准值,但实际计算中,由于取值位数不同,会得出不同的解答,甚至出现无解的状况。研究发现其根本原因是回归分析中均方差计算公式不合适。通过采用《港口工程地基规范》推荐的均方差计算公式计算表明,该公式较合理,建议《建筑地基基础设计规范》在修订时加以修正。更多还原

【Abstract】 On the basis of "Code for Soil Foundation of Building GBJ7-89",the bearing capacity can be determined according to the physical and mechanical properties of soil.By using this method,the standard value of the bearing capacity can be calculated from the basic value of the bearing capacity.The different results can come into being in the calculating because of the difference of place of value,and even no solution can be obtained.The reason is that the formula of calculating mean square deviation in regression analysis is unsuitable.The calculating results through using the formula of "Code for Soil Foundation of Port Engineering",show that the formula of Port Engineering is reasonable.The correction is suggested during the redaction of "Code for Soil Foundation of Building".更多还原