基于Peck公式修正浙中地区铁路隧道浅埋段地表沉降预测分析

基于新建金甬铁路全线正线先开段千石岩隧道及陈家岭隧道的大量实测数据，通过采用线性回归分析法对实测数据进行拟合分析，修正了沉降槽宽度系数和最大沉降量系数。研究表明:沉降槽宽度系数取值0.6～0.9，最大沉降量系数取值0.15～0.45时，修正后的Peck公式较原Peck经验公式更吻合实测数据。

Prediction and Analysis of Ground Settlement in Shallow Buried Section of Railway Tunnel in Zhejiang Province Based on Modification to Peck Formula

Based on a large number of measured data of Shiyan tunnel and Chenjialing tunnel of main Xiankai Section on newly-built Ningbo—Yiwu Railway, by using linear regression analysis method to fit experimental data analysis, settling tank width coefficient and the maximum subsidence coefficient have been modified. The research result shows that when the settlement width coefficient value is 0.6～0.9 and the maximum subsidence coefficient value is 0.15～0.45, the modified peck formula data is more consistent with the measured data than the original Peck empirical formula data.