摘要
本文以常州地铁项目部实测数据为依据,运用数学方法进行拟合,并结合实测数据对Peck公式进行修正,修正参数为地表最大沉降值和沉降槽宽度。得出了适应常州地区的Peck公式。结果表明:通过实测数据来分析得出地表最大沉降值修正范围在0.172 4~0.442 3,沉降槽的修正范围在0.556 4~0.746 1时,在运用Peck公式预测盾构施工引起的地表沉降时,和真实结果较为接近,且与原始Peck公式相比,预测结果更为可靠。
In this paper, based on the measured data of Changzhou metro project, mathematical method is used to fit and combines the measured data to revise the Peck formula. The correction parameters are the maximum settlement of the ground surface and the width of the settlement trough. The Peck formula, which is adapted to Changzhou area, is obtained. The results showed that the use of Peck for- mula to predict the surface settlement caused by shield construction. The actual data analysis shows that the maximum surface settle- ment correction in the range of 0. 172 4 -0. 442 3, settling tank correction in the range of 0. 556 4 -0. 746 1. Real results and the o- riginal Peck formula are compared. And prediction results is more reliable.
出处
《洛阳理工学院学报（自然科学版）》
2017年第4期37-40,共4页
Journal of Luoyang Institute of Science and Technology：Natural Science Edition
关键词
地铁隧道
地表沉降
PECK公式
修正系数
subway tunnel
surface subsidence
Peck formula
correction coefficient
