Analysis of Ground Settlement of Double-Track Tunnel Undercrossing Shallow Overburden Silt Layer

Xingguo Yu

doi:10.54097/07bfe090

Authors

Xingguo Yu

DOI:

https://doi.org/10.54097/07bfe090

Keywords:

Tunnel; double lines; shallow cover; sedimentation.

Abstract

Taking the double-line shield tunnel of Zhengzhou Metro Line 12 undercrossing the shallow covered fine sand layer as the background, the construction process of the double-line shield tunnel undercrossing the shallow covered fine sand layer is simulated by using the measured data combined with the finite element analysis software. The surface settlement analysis under the con ditions of single-line tunnel, double-line tunnel penetration and different tunnel spacing is focused, and the formula calculation data are compared with the numerical simulation results. The results show that the settlement curve calculated by Peck curve formula is similar to that of numerical simulation, and the correctness of the model is proved theoretically. During the process from the left tunnel through to the right tunnel through, the position of the maximum ground settlement value shifts from the center of the left tunnel to the center of the double-line tunnel, which is due to the influence of the secondary disturbance on the soil. The maximum ground settlement decreases with the increase of tunnel spacing, and the width of settlement trough increases with the increase of tunnel spacing.

Downloads

Download data is not yet available.

References

[1] Feng Zhentu, Shi Pengfei, Jiang Man, et al. Numerical Simulation Study on the Influence of Shield Machine Cutting Piles and Passing through a Composite Foundation on the Settlement of the Foundation of a Masonry House[J]. Geotechnical Investigation &Surveying, 2021, 49(09): 7-13.

[2] Yan Hanbing. Construction of the Resilience Evaluation Index System for the Safety Management System of Shield Tunneling Construction[J]. Construction & Design for Engineering, 2025, (05): 257-259. DOI: 10.13616/j.cnki.gcjsysj.2025.03.080.

[3] Li Jianqiang, Liang Xinyong, Zhu Jinxian. Study onGround Surface Settlement Caused by Shield TunnelConstruction with Shallow Overburden[J]. Engineering Construction, 2023, 55(02): 29-35. DOI: 10.13402/j.gcjs.2023.02.019.

[4] Wu Guanglei, Wen Liangtao. Analysis and Control of Settlement Deformation of Existing Buildings When Shield Construction Passes Beneath Them[J]. Bulk Cement, 2023, (05): 101-103 + 106.

[5] Chen Hua. Research and Analysis on the Ground Surface Settlement Caused by Metro Shield Construction[J]. Sichuan Cement, 2018, (11): 255.

[6] Xu Xu, Xue Yanyu, Zhang Zhenyu, et al. Study onthe Influence Law of Settlement during the Construction of Double-line Shield Tunnels[J]. GeotechnicalInvestigation & Surveying, 2022, 50(04): 1-7 + 15.

[7] Chen Chunlai, Zhao Chengli, Wei Gang, et al.Prediction of Soil Settlement Induced by Double-Line Shield Based on Peck Formula [J].Rock and Soil Mechanics, 2014, 35(8): 2212-2218.

[8] Song Kezhi, Wang Mengshu, Sun Mou. Reliability Analysis of Ground Surface Settlement of Shield Tunnel Based on Peck Formula [J].Journal of Norther Jiaotong University, 2004(04): 30 - 33.

[9] Fang Enquan, Yang Lingzhi, Li Pengfei. Research on Prediction of Ground Surface Settlement in Shiel Construction Based on ModifiedPeck Formula [J]. Modern Tunnelling Technology, 2015, 52(1): 143 - 149

[10] Yang Fengfeng, Yan Hongbo, Tian Li, et al. Study on the Applicability of the Modified Peck Formula in Predicting the Ground Surface Settlement of Shield Tunnels in Water-rich Sand and Gravel Strata[J]. Geotechnical Investigation & Surveying, 2021, 49(11): 72-78.

[11] Fu Chunqing, Tian Shiwen, Liu Bo, et al. Application of the Modified Peck Formula in the SettlementPrediction of Sand and Gravel Strata in Beijing Area[J]. Construction Technology, 2020, 49(09): 74-77.

[12] Liu Hongzhou, Sun Jun. Numerical Study onInfluencing Factors of Ground Settlement inShield Drivingof Soft Soil Tunnel [J]. ModernTunnelling Technology, 2001(6): 24 - 28.

[13] Peng Chang, Ji Yulin, Luo Hanbin, et al. NumericaAnalysis of the Influence of Double-line Shield Construction on Adjacent Buildings[J]. Chinese Journal of Rock Mechanics and Engineering, 2008(S2): 3868 - 3874.

[14] Li Xiaoqing, Zhu Chuncheng. Numerical Analysis and Research on Ground Surface Settlement in Shield Tunnel Construction [J]. Journal of Highway and Transportation Research and Development, 2007(06): 86 - 91.

[15] Liu Bo, Tao Longguang, Ding Chenggang, et al. Prediction Research and Application of Ground Surface Settlement Induced by Metro Double-tunnel Construction[J]. Journal of China University of Mining &Technology, 2006, (03): 356-361.