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  

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

作　　者：白丁伟 BAI Dingwei(Hangzhou Railway Terminal Project Construction Headquarters of China Railway Shanghai Bureau Group Co.,Ltd.,Hangzhou 310000,China)

机构地区：[1]中国铁路上海局集团有限公司杭州铁路枢纽工程建设指挥部,杭州310000

出　　处：《路基工程》2021年第3期176-180,共5页Subgrade Engineering

摘　　要：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。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.

关 键 词：PECK公式 线性回归分析 沉降槽宽度系数 最大沉降量系数 隧道浅埋段 地表沉降预测 

分 类 号：U456[建筑科学—桥梁与隧道工程]