摘要
以长春地铁大量施工监测数据为基础,运用Peck理论公式,在公式中添加了地表最大沉降修正系数α和沉降槽宽度修正系数β,确定了适用于长春地区的修正系数取值范围,并利用修正后的Peck公式对横向地表沉降进行预测。对比实测数据分析表明：当α取0.6~0.9、β取0.5~0.9时,Peck预测修正曲线和实测数据误差较小,适用于长春地铁工程实践,能较好地预防地铁施工事故的发生。
Based on a large number of construction measured data of Changchun Subway,we introduce the maximum surface subsidence correction coefficient α and the width of the settlement trough correction factor β to correct Gaussian equation which was used to calculate the lateral surface subsidence,and determine the range of the correction coefficient.The analyzing results of comparing the real measured data show that：When α is 0.6~0.9,β is 0.5~0.9,the error between Peck forecast correction curve and the real measured data is small.The correction formula can be better applied to the subway engineering in Changchun and prevent the happening of the subway accident.
出处
《地震研究》
CSCD
北大核心
2016年第1期10-14,179,共5页
Journal of Seismological Research
基金
国家自然科学基金--强震下煤矿采动区岩层动力失稳与建筑安全控制研究(51474045)和基于信息可视化新技术进行矿山开采沉陷演化研究(51174038)联合资助
关键词
长春地铁
PECK公式
修正系数
地表沉降
subway in Changchun
Peck Gaussian equation
correction factor
ground surface settlement
