摘要
结合长江一级阶地地区武汉地铁4号线5标段的盾构实例,用Peck公式对地表断面沉降数据进行了拟合,并通过对结果进行统计分析,得出了长江一级阶地地区沉降槽宽度系数i的取值,并对常见的i计算公式中的系数给出了建议值。最后通过对地层损失率的分析给出了长江一级阶地地区隧道施工安全前提下的地层损失率的建议上限值。
Combined with practical example of the 5th bid section of Wuhan Metro Line 4 which is located in the area of the first grade terrace of the Changjiang River, the ground settlement data of monitoring sections is fitted with the Peck formula. By analysing the fitting results statistically, the settlement trough width parameter in this area is obtained and the suggested values of coefficients in common calculation formulas of i is given. Finally, through the analysis of the ground loss ratio, the suggested upper limit value of ground loss ratio on the safe side is recommended in the first grade terrace area.
出处
《武汉理工大学学报》
CAS
CSCD
北大核心
2013年第9期85-90,共6页
Journal of Wuhan University of Technology
关键词
一级阶地
PECK公式
拟合
沉降槽宽度系数
地层损失率
first grade terrace
Peck formula
fitting
settlement trough width parameter
ground loss ratio
