摘要
大湾隧道是邵怀高速公路重要工程之一,为了确保隧道施工的安全可靠性,对大湾隧道进行了全程监控测量工作。对隧道的水平收敛测量数据和拱顶沉降测量数据进行了处理与分析,运用了对数函数、指数函数和最小二乘法三类回归函数进行了回归分析,比较了三种回归函数,讨论了其对位移预测准确性的影响。回归分析结果表明最小二乘法不仅可以很好地拟合软弱围岩开挖后的初期变形,还可预估围岩的最终变形量,且相关系数高。
Dawan tunnel is an important engineering, In order to guarantee the safety and reliability of tunnel construction, the monitoring measurement is taken during the construction process of Dawan tunnel. The paper has discussed data regression of the level convergence and vault subsidence. At the same time, the paper discusses three kinds of functions. The three kinds of functions are logarithm function, exponential function and least square method. The regression accuracy of different functions is different from the displacement regression.
出处
《四川测绘》
2008年第3期113-115,120,共4页
Surveying and Mapping of Sichuan
关键词
隧道工程
监控测量
回归分析
Tunnel engineering
Monitoring measurement
Regression analysis
