隧道洞口围岩稳定型变形的非线性回归分析  

Nonlinear Regression Analysis on Steady Deformation of Surrounding Rocks of Tunnel Portal Sections

作　　者：李献民[1,2] 梁艳慧 王梦恕[2,3] 

机构地区：[1]河南省交通科学技术研究院有限公司隧道工程研究所,郑州450006 [2]北京交通大学土木建筑学院,北京100044 [3]中铁隧道集团有限公司,河南洛阳471009

出　　处：《隧道建设》2010年第5期535-539,568,共6页Tunnel Construction

基　　金：河南省交通运输厅科技项目(2010P225)

摘　　要：通过对隧道洞口围岩变形监控量测数据的分析,得到地表沉降、拱顶下沉、周边位移的变形曲线具有明显的阶段特征;同时对变形曲线进行非线性回归分析,得到围岩变形"增长模型"的非线性回归方程,对预测预报围岩变形规律和最终变形、提高隧道信息化施工水平提供基础和依据。The analysis on the monitoring data of the deformation of the surrounding rocks of tunnel portal sections indicates that the deformation curves of the ground surface settlement,crown settlement and perimeter displacement have obvious stage characteristics.At the same time,the nonlinear regression analysis on the deformation curves of surrounding rocks obtains the nonlinear regression equation of ＂growth models＂ of the deformation of the surrounding rocks.This nonlinear regression equation provides the basis to forecast the deformation rules and final deformation of the surrounding rocks and to improve the level of the information-aided tunnel construction.

关 键 词：隧道洞口 围岩稳定型变形 监控量测 增长模型 非线性回归分析 

分 类 号：U456.31[建筑科学—桥梁与隧道工程]