作　　者： (张世荣）; (韦海鑫）; (刘毛毛）; (刘宗辉）; (王业田）; (周东）;

机构地区： 西安建筑科技大学,陕西西安710055

出　　处： 《广西大学学报（自然科学版）》 2017年第4期1384-1391,共8页

摘　　要： 通过对南宁市387份岩土工程勘察资料进行统计分析,得到南宁市主要岩土层物理力学参数参考值。运用"三序"划分法对南宁市主要岩土层进行统计单元划分,得到了更具有针对性的南宁市岩土单元划分体系。在搜集大量南宁市岩土工程勘察数据资料的基础上,按照岩土单元划分体系对参数数据进行分类,在经过数据的可靠性检验之后,运用SPSS软件对数据检验前的项目数和样本数,数据检验后的有效项目数和有效样本数,百分位数(P2.5、P5.0、P95.0、P97.5),极小值,极大值,标准差,5%修整均值,中值,总体均值及其95%的置信区间和建议值区间进行统计。对于不满足勘察项目数量和样本数量要求的岩土参数,仅统计该参数的样本数量、最小值、最大值、均值和标准差。综合分析统计结果,得到南宁市主要岩土层物理力学参数参考值表,为南宁轨道交通工程建设以及其他基坑的工程勘察和设计施工提供地区经验。 Based on the statistical analysis of 387 pieces of geological information in Nanning,the reference value of the physical and mechanical parameters of the main rock and soil layers in Nanning was obtained. By using the method of ＂ three orders＂,the statistical units of the main strata in Nanning were classified,and the classification system of Nanning rock and soil units was obtained. The large number of Nanning geological data was classified according to the system of rock and soil units. After the reliability test of the data,the following statistical results were given by the SPSS software： the number of items and samples before the data inspection,the effective number ofitems and samples after the data inspection, percentile（ P2. 5, P5. 0, P95. 0, P97. 5）, the minimum value,the maximum value,the standard deviation,the 5% trimmed mean,the median,the overall mean and its 95% confidence and suggestion value intervals. For the geotechnical parameters that did not meet the requirements of the number of survey items and the number of samples,only the number of samples,the minimum,the maximum,the mean and the standard deviation were counted. After a comprehensive analysis of the statistical results,the table of reference value of physical and mechanical parameters of main rock and soil layers in Nanning was obtained,whichprovided regional experience for the construction of Nanning rail transit projects,the engineering investigation,design and construction of foundation pits.

关 键 词： 南宁市 物理力学参数 岩土单元划分 统计分析 参考值