摘要
地下厂房围岩变形受开挖高程进度、温度及时间推移的影响,位移发展呈现一定的统计规律,采用围岩变形的统计回归模型,探究开挖高程进度分量、温度分量和时效分量对围岩变形的影响程度。位移等值线图表明:深层围岩变形量基本在10 mm以下,浅层围岩变形量大多在30 mm以上,尤其是两侧边墙中上部。
Surrounding rock deformation of underground powerhouse is affected by excavation elevation progress,temperature and time,and the displacement development presents certain statistical rules. The statistical regression model of surrounding rock deformation is adopted to explore the influence of the progress,temperature and aging components of excavation on the deformation of surrounding rock. The displacement contour map shows that the deep surrounding rock deformation is basically below 10 mm,and the shallow surrounding rock deformation is mostly above 30 mm,especially in the middle and upper part of two side walls.
出处
《四川水力发电》
2018年第5期99-102,共4页
Sichuan Hydropower
关键词
水电站
地下厂房
围岩变形特征
监测资料验证
underground powerhouse
deformation statistics
regression analysis
displacement contour