摘要
回归分析是对一系列具有内在规律的数据进行处理,通过处理和计算得到两个变量之间的函数式关系。以光坑山隧道某断面拱顶沉降的实测数据为基础,依照新奥法施工中岩体开挖变形的时间效应原理,利用数学方法对拱顶下沉数据进行了回归分析,得到该隧道在开挖过程中围岩变形随时间的变化关系,及时对若干时间内的隧道围岩稳定性进行有效的预测,为后期设计修改、施工方案变更等提供了理论依据。
Regression analysis is used to obtain a functional relationship between two variablesthrough processing and computing by means of handling a series data which have the inherent law. This paper base on the measured data of a cross-section dome o.f Guangkengshan Tunnel settlement, in accordance with time effect principle of excavation of rock deformation in NATM, regression analysis with mathematics method is made on vault sinking data, a changes relationship between the surrounding rock deformation and time in the tunnel digging process and effective is worked out, and the tunnel surrounding rock stability in a certain time is forecasted, which can provides theories for later design modification and construction program adjustment.
出处
《公路》
北大核心
2015年第4期296-299,共4页
Highway
关键词
隧道
新奥法
稳定性
回归分析
预测
tunnel
NATM
stability
regression analysis
prediction
