Analytical solution for a jointed shield tunnel lining reinforced by secondary linings

It is obviously a simplification to consider the tunnel lining as uniformly permeable.In reality it is more likely that there are specific leaks assocoated with segmental lining joints. In the case of in situ concrete linings, construction joints can provide leakage paths, accounting for most of the water leakage. In this paper, based on the mechanical model of segment joint, the analytical expression of magnitude of joint opening was developed, in light of which, the occurrence of water leakage through the joint system can be judged. Taking the metro line No.1 in Shanghai as an example, effects of such parameters as joint flexural stiffness, bolt location, bolt stiffness, bolt prestress, etc. on the magninitude of the joint opening were analyzed respectively through the analytical solution. The results not only help us realize the influence mechanism of segment design on the magnitude of joint opening of the segmental linings, but also provide the guidance for waterproof design of the shield tunnel.

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Soil-water inrush induced shield tunnel lining damage and its stabilization: A case study

Tunnelling and Underground Space Technology ◽

10.1016/j.tust.2020.103290 ◽

2020 ◽

Vol 97 ◽

pp. 103290 ◽

Cited By ~ 3

Author(s):

Linchong Huang ◽

Jianjun Ma ◽

Mingfeng Lei ◽

Linghui Liu ◽

Yuexiang Lin ◽

...

Keyword(s):

Soil Water ◽

Water Inrush ◽

Tunnel Lining ◽

Shield Tunnel

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Non-linear spring model for backfill grout-consolidation behind shield tunnel lining

Computers and Geotechnics ◽

10.1016/j.compgeo.2021.104235 ◽

2021 ◽

Vol 136 ◽

pp. 104235

Author(s):

Xiao-Xue Liu ◽

Shui-Long Shen ◽

Ye-Shuang Xu ◽

Annan Zhou

Keyword(s):

Tunnel Lining ◽

Shield Tunnel ◽

Spring Model ◽

Non Linear ◽

Linear Spring

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Study on the deformation and load bearing capacity of TBM shield tunnel lining in fire

Underground Space Use. Analysis of the Past and Lessons for the Future ◽

10.1201/noe0415374521.ch118 ◽

2005 ◽

Author(s):

Toru Kanda ◽

Hitoshi Tajima ◽

Takeshi Morita ◽

Masahiko Kishida

Keyword(s):

Bearing Capacity ◽

Tunnel Lining ◽

Shield Tunnel ◽

Load Bearing Capacity ◽

Load Bearing ◽

In Fire

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Reasonable design method of shield tunnel lining under internal water pressure

Modern Tunneling Science and Technology ◽

10.1201/9781003077534-45 ◽

2020 ◽

pp. 857-860

Author(s):

N. Okano ◽

S. Konishi ◽

K. Kobayashi ◽

A. Koenuma ◽

K. Ohishi ◽

...

Keyword(s):

Design Method ◽

Water Pressure ◽

Tunnel Lining ◽

Shield Tunnel ◽

Internal Water

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Failure mechanism and strengthening effect of shield tunnel lining reinforced by steel plates with corbels

European Journal of Environmental and Civil engineering ◽

10.1080/19648189.2020.1717636 ◽

2020 ◽

pp. 1-19

Author(s):

Ting-Jin Liu ◽

Si-Wei Chen ◽

Pei-Qin Lin ◽

Hong-Yuan Liu

Keyword(s):

Failure Mechanism ◽

Tunnel Lining ◽

Steel Plates ◽

Shield Tunnel ◽

Strengthening Effect

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Application of Analytical Solution to Steady-State Temperature Field by Double-Row-Pipe Freezing and Verification with Field Measurement: A Case Study of Connected Aisle

Advances in Civil Engineering ◽

10.1155/2019/6435060 ◽

2019 ◽

Vol 2019 ◽

pp. 1-12 ◽

Cited By ~ 1

Author(s):

Zequn Hong ◽

Xiangdong Hu

Keyword(s):

Temperature Field ◽

Steady State ◽

Analytical Solution ◽

Wall Thickness ◽

Field Measurement ◽

Field Analysis ◽

Shield Tunnel ◽

Double Row ◽

Steady State Temperature ◽

Frozen Wall

In order to solve the problem of sealing water and bearing capacity of a connected aisle in an underwater shield tunnel, a double-circle horizontal freezing method was adopted for ground reinforcement in the connected aisle of Maliuzhou Tunnel, which is China’s first shield tunnel with superlarge diameter built in a composite stratum. This paper proposed a new double-row-pipe freezing model for the calculation of frozen wall thickness based on analytical solution to steady-state temperature field. Besides, field measurement and transient numerical studies of the active freezing period were also carried out to study the freeze-sealing effect. The results show that frozen wall thickness obtained by analytical solutions agrees well with numerical simulation results, which verifies the applicability of the newly proposed calculation method. Field analysis indicates that soil temperature gradually approaches a stable value which is far below the freezing point, and a reliable water-sealing curtain can be formed around the designed connected aisle. Maximum impact of soil excavation on the frozen wall is about 10°C, and reducing exposure time of excavation surface can effectively alleviate the weakening of frozen wall. To obtain comprehensive analysis for freezing wall thickness, a more reasonable arrangement of temperature-measuring holes is expected in future freezing engineering.

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