4.7 Article

Investigation of the long-term settlement of a cut-and-cover metro tunnel in a soft deposit

Journal

ENGINEERING GEOLOGY
Volume 204, Issue -, Pages 33-40

Publisher

ELSEVIER
DOI: 10.1016/j.enggeo.2016.01.016

Keywords

Long-term settlement; Cut-and-cover tunnel; Soft deposit

Funding

  1. National Natural Science Foundation of China (NSFC) [51478353, 51008158]
  2. Nanjing Metro Co. Ltd.

Ask authors/readers for more resources

This study investigates the long-term settlement of Nanjing Metro Line 10 in China. A maximum settlement of 240 mm was measured within 5.75 years after the track system was constructed. Four settlement troughs were observed along the longitudinal direction of the railway line. The settlement of the tunnel developed rapidly in the first two years and then the rate of settlement gradually decreased. The excessive settlement and large differential settlement of the tunnel were primarily caused by the deep and non-uniform distribution of the underlying soft soil. The long-term tunnel settlement mainly consists of two components, including recompression settlement following construction and secondary consolidation settlement of the foundation. Each component of settlement was analyzed and estimated in this study. The computed results correspond well with the measured data, and the recompression deformation and the secondary consolidation deformation represents approximately 78.0-100% and 0-22.0% of the total tunnel settlement, respectively. The measured data and calculated results revealed that the lengths of the cement mixing piles used to improve the tunnel foundation are insufficient to reduce the long-term settlement. Piles entirely penetrating the soft silty clay layer are recommended. (C) 2016 Elsevier B.V. All rights reserved.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.7
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

Article Acoustics

Effect of track irregularity on the dynamic response of a slab track under a high-speed train based on the composite track element method

Xinwen Yang, Shaojie Gu, Shunhua Zhou, Jianjin Yang, Yu Zhou, Songliang Lian

APPLIED ACOUSTICS (2015)

Article Engineering, Multidisciplinary

Biobjective Optimization of Vibration Performance of Steel-Spring Floating Slab Tracks by Four-Pole Parameter Method Coupled with Ant Colony Optimization

Hao Jin, Weining Liu, Shunhua Zhou, Christoph Adam

MATHEMATICAL PROBLEMS IN ENGINEERING (2015)

Article Computer Science, Interdisciplinary Applications

Three-dimensional multilayer cylindrical tunnel model for calculating train-induced dynamic stress in saturated soils

Honggui Di, Shunhua Zhou, Chao He, Xiaohui Zhang, Zhe Luo

COMPUTERS AND GEOTECHNICS (2016)

Article Engineering, Multidisciplinary

Dynamic 2.5-D green's function for a poroelastic half-space

Shunhua Zhou, Chao He, Honggui Di

ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS (2016)

Article Construction & Building Technology

Differential Settlement and Induced Structural Damage in a Cut-and-Cover Subway Tunnel in a Soft Deposit

Shunhua Zhou, Honggui Di, Junhua Xiao, Peixin Wang

JOURNAL OF PERFORMANCE OF CONSTRUCTED FACILITIES (2016)

Article Engineering, Civil

An investigation of subgrade differential settlement on the dynamic response of the vehicle-track system

Xiaohui Zhang, Michael Burrow, Shunhua Zhou

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART F-JOURNAL OF RAIL AND RAPID TRANSIT (2016)

Article Engineering, Geological

Experimental analysis on settlement controlling of geogrid-reinforced pile-raft-supported embankments in high-speed railway

Changdan Wang, Binglong Wang, Peijun Guo, Shunhua Zhou

ACTA GEOTECHNICA (2015)

Article Computer Science, Interdisciplinary Applications

Basal-heave analysis of pit-in-pit braced excavations in soft clays

Yuyong Sun, Shunhua Zhou, Zhe Luo

COMPUTERS AND GEOTECHNICS (2017)

Proceedings Paper Engineering, Geological

Some Predictions of Deformations from Tram Track Construction in a Structure-Embankment Transition Zone

Yao Shan, Shunhua Zhou, Quanmei Gong, Junhua Xiao, Changdan Wang, Xiaohui Zhang, Sihui Xu, Zheng Yu

ADVANCES IN TRANSPORTATION GEOTECHNICS III (2016)

Article Engineering, Geological

Analysis of influence of surface surcharge on subway shield tunnel under

Zhang Ming-gao, Zhou Shun-hua, Huang Da-wei, Wang Xiu-zhi, Liu Hong-bo

ROCK AND SOIL MECHANICS (2016)

Article Engineering, Geological

Calculation method of limit overlying earth pressure on shield tunnel during lifting

Zhou Jun-hong, Gong Quan-mei, Zhou Shun-hua, Han Gao-xiao

ROCK AND SOIL MECHANICS (2016)

Article Engineering, Geological

Impacts of foundation pit excavation on adjacent railway subgrade and control

Wang Pei-xin, Zhou Shun-hua, Di Hong-gui, Li Xue

ROCK AND SOIL MECHANICS (2016)

Article Engineering, Biomedical

An experiment to assess vibration reduction ability of the rubber floating-slab tracks with different supporting forms

Hao Jin, Weining Liu, Shunhua Zhou

JOURNAL OF VIBROENGINEERING (2015)

Article Engineering, Geological

Analysis of impact of isolation piles and shield tunnelling on adjacent high- speed railway pile foundation

Li Xue, Zhou Shun-hua, Wang Pei-xin, Li Xiao-long

ROCK AND SOIL MECHANICS (2015)

No Data Available