Surface Settlement Induced by Subway Tunnel Construction Based on Modified Peck Formula

被引:1
作者
Qianjin Zhang
Ke Wu
Shuaishuai Cui
Yalin Yu
Zheng Zhang
Jiahui Zhao
机构
[1] Shandong University,School of Civil Engineering
来源
Geotechnical and Geological Engineering | 2019年 / 37卷
关键词
Peck formula; Theoretical analysis; Surface settlement; Numerical simulation;
D O I
暂无
中图分类号
学科分类号
摘要
A surface subsidence model is established to address the issue of the increase in surface settlement with time. Considering the effects of time factors and depth on surface subsidence, the formula was derived and it was used to calculate the three-dimensional space–time prediction of two-line tunnel settlements in construction processes. Thus, we obtain the calculation method of ground settlement for single- and double-line tunnels. Research relies on Shenzhen Metro Line 7 project. On the basis of the comparison between FLAC 3D calculation software and on-site monitoring, the reliability of the proposed modified Peck formula for the calculation of surface settlement induced by shallow tunnel construction is verified. Research indicates that (1) the proposed calculation method for ground settlement induced by subway tunnel construction is accurate; (2) the modified Peck formula predicts soil settlement at different times and depths; and (3) the revealed surface settlement law is consistent with numerical simulation and measured results, which can effectively reveal the mechanism and law of surface settlement caused by tunnel excavation.
引用
收藏
页码:2823 / 2835
页数:12
相关论文
共 34 条
[1]  
Changming H(2018)Improvement of Peck settlement prediction formula for shield tunnel construction in Xi’an water-rich sand layer Chin J Undergr Space Eng 14 176-181
[2]  
Chao F(2014)Prediction of soil settlement induced by double-line shield tunnel based on Peck formula Rock Soil Mech 35 2212-2218
[3]  
Yuan M(2013)Prediction of soil settlement caused by double-line parallel shield tunnel construction Disaster Adv 6 23-27
[4]  
Chen C(2016)A simplified method for predicting ground settlement caused by adjacent parallel twin shield tunnel construction based on stochastic medium theory Rock Soil Mech 37 113-119
[5]  
Zhao C(2014)Modified Peck equation method for shield tunnel oblique crossing upper railway J Tongji Univ Nat Sci 42 1562-1566
[6]  
Wei G(2016)Study of impact of metro station side-crossing on adjecent existing underground structure J Intell Fuzzy Syst 31 2291-2298
[7]  
Gang W(2012)Study with geomechanical model test on surface subsidence of extremely shallow large-span double-arch tunnel J Wuhan Univ Technol (Transm Sci Eng) 36 1118-1121
[8]  
Gang W(1956)Application of the equation of stochastic processes to mechanics of loose bodies Arch Mech 8 393-411
[9]  
Yangkan Z(2007)Research and application of Peel-adaptive immune algorithm in intelligent calculation of tunnel surrounding rock Chin J Rock Mech Eng 26 3410-3415
[10]  
Kang Z(2014)Study on horizontal ground settlement of shield tunneling in the land section of lion ocean tunnel Tunnel Constr 12 1143-1147