多元线性回归算法在地应力场计算中的应用  

Application of multivariate linear regression algorithms in the calculation of ground stress field

作　　者：王知深 李勇[1,2] 朱维申 董振兴[1] Wang Zhishen;Li Yong;Zhu Weishen;Dong Zhenxing(Center of Geotechnical and Structure Engineering, Shandong University, Jinan 250061, China;Shandong University, School of Civil Engineering, Jinan 250061, China)

机构地区：[1]山东大学岩土与结构工程中心,山东济南250061 [2]山东大学土建与水利学院,山东济南250061

出　　处：《山西建筑》2019年第2期51-53,共3页Shanxi Architecture

摘　　要：以某地下泵站工程为背景,建立了工程地质体三维数值模型,并根据实际地应力测量结果,基于FLAC3D数值模拟软件,使用应力回归分析方法,对该工程的地应力场进行了反演计算。结果表明:该工程包括厂房及出水阀室的中心区域,在x方向的侧压系数Kx约1.003,而在y方向Ky则约为1.4。计算结果与实测结果基本吻合,说明采用应力回归计算求得的初始地应力场,能够真实的反映工程现场实际情况,其结果具有较好的可靠性,可作为厂房设计、施工和稳定性评价的参考依据。Based on an underground project, a three-dimensional geological model of this project is established. According to the field in-situ stress measurement results, based on FLAC3D, stress regression analysis method is used to calculate the in-situ stress field of the project. The result shows that: in the project area, the lateral pressure coefficient K x in the X direction is about 1.003, while K y in the Y direction is about 1.4. The calculated results are in good agreement with the measured ones. It shows that the initial geo-stress field calculated by stress regression can truly reflect the actual situation of the engineering site. The results have good reliability and can be used as a reference for the design, construction and stability evaluation of factory buildings.

关 键 词：地下泵房 FLAC3D 地应力场 应力回归 数值分析 

分 类 号：P642[天文地球—工程地质学]