Explanation for twin tunnelling-induced surface settlements by changes in soil stiffness on account of stress history

Gang Zheng; Jibin Sun; Sarah Elizabeth Stallebrass; Richard James Goodey; Tianqi Zhang; R. Neil Taylor; Sam Divall

doi:10.1016/j.tust.2018.12.015

Explanation for twin tunnelling-induced surface settlements by changes in soil stiffness on account of stress history

Gang Zheng, Jibin Sun, Sarah Elizabeth Stallebrass, Richard James Goodey, Tianqi Zhang, R. Neil Taylor, Sam Divall

Research output: Contribution to journal › Article › peer-review

Abstract

In this article, a group of representative centrifuge tests were selected for numerical modelling to explain the surface settlements induced by sequential twin tunnelling. Both Modified Cam Clay model (MCC) and Three-Surface Kinematic Hardening model (3-SKH) were adopted in the simulation, which indicated the use of 3-SKH model conduced to mimicking more closely centrifuge model response. Via performing more contrastive numerical analyses with 3-SKH model, the influence of the first tunnel event on the stiffness of the soil around the second tunnel was quantitatively investigated, whereby the mechanism behind the observed surface settlements was finally made clear.

Original language	English
Pages (from-to)	160-169
Journal	Tunnelling and Underground Space Technology
Volume	85
Early online date	28 Dec 2018
DOIs	https://doi.org/10.1016/j.tust.2018.12.015
Publication status	Published - 31 Mar 2019

Bibliographical note

Note: This work was supported by the National Key R&D Program of China [grant no. 2017YFC0805407], the National Natural Science Foundation of China [grant nos. 41630641 and 51808387], and the National Key R&D Program of China [grant no. 2016YFC0802008].

Keywords

Twin tunnelling
Modified Cam Clay model
Three-Surface Kinematic Hardening model
Stiffness of soil
Civil engineering

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10.1016/j.tust.2018.12.015

https://doi.org/10.1016/j.tust.2018.12.015

Cite this

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title = "Explanation for twin tunnelling-induced surface settlements by changes in soil stiffness on account of stress history",

abstract = "In this article, a group of representative centrifuge tests were selected for numerical modelling to explain the surface settlements induced by sequential twin tunnelling. Both Modified Cam Clay model (MCC) and Three-Surface Kinematic Hardening model (3-SKH) were adopted in the simulation, which indicated the use of 3-SKH model conduced to mimicking more closely centrifuge model response. Via performing more contrastive numerical analyses with 3-SKH model, the influence of the first tunnel event on the stiffness of the soil around the second tunnel was quantitatively investigated, whereby the mechanism behind the observed surface settlements was finally made clear.",

keywords = "Twin tunnelling, Modified Cam Clay model, Three-Surface Kinematic Hardening model, Stiffness of soil, Civil engineering",

author = "Gang Zheng and Jibin Sun and Stallebrass, \{Sarah Elizabeth\} and Goodey, \{Richard James\} and Tianqi Zhang and Taylor, \{R. Neil\} and Sam Divall",

note = "Note: This work was supported by the National Key R\&D Program of China [grant no. 2017YFC0805407], the National Natural Science Foundation of China [grant nos. 41630641 and 51808387], and the National Key R\&D Program of China [grant no. 2016YFC0802008].",

year = "2019",

month = mar,

day = "31",

doi = "10.1016/j.tust.2018.12.015",

language = "English",

volume = "85",

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journal = "Tunnelling and Underground Space Technology",

issn = "0886-7798",

publisher = "Elsevier Ltd",

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TY - JOUR

T1 - Explanation for twin tunnelling-induced surface settlements by changes in soil stiffness on account of stress history

AU - Zheng, Gang

AU - Sun, Jibin

AU - Stallebrass, Sarah Elizabeth

AU - Goodey, Richard James

AU - Zhang, Tianqi

AU - Taylor, R. Neil

AU - Divall, Sam

N1 - Note: This work was supported by the National Key R&D Program of China [grant no. 2017YFC0805407], the National Natural Science Foundation of China [grant nos. 41630641 and 51808387], and the National Key R&D Program of China [grant no. 2016YFC0802008].

PY - 2019/3/31

Y1 - 2019/3/31

N2 - In this article, a group of representative centrifuge tests were selected for numerical modelling to explain the surface settlements induced by sequential twin tunnelling. Both Modified Cam Clay model (MCC) and Three-Surface Kinematic Hardening model (3-SKH) were adopted in the simulation, which indicated the use of 3-SKH model conduced to mimicking more closely centrifuge model response. Via performing more contrastive numerical analyses with 3-SKH model, the influence of the first tunnel event on the stiffness of the soil around the second tunnel was quantitatively investigated, whereby the mechanism behind the observed surface settlements was finally made clear.

AB - In this article, a group of representative centrifuge tests were selected for numerical modelling to explain the surface settlements induced by sequential twin tunnelling. Both Modified Cam Clay model (MCC) and Three-Surface Kinematic Hardening model (3-SKH) were adopted in the simulation, which indicated the use of 3-SKH model conduced to mimicking more closely centrifuge model response. Via performing more contrastive numerical analyses with 3-SKH model, the influence of the first tunnel event on the stiffness of the soil around the second tunnel was quantitatively investigated, whereby the mechanism behind the observed surface settlements was finally made clear.

KW - Twin tunnelling

KW - Modified Cam Clay model

KW - Three-Surface Kinematic Hardening model

KW - Stiffness of soil

KW - Civil engineering

U2 - 10.1016/j.tust.2018.12.015

DO - 10.1016/j.tust.2018.12.015

M3 - Article

SN - 0886-7798

VL - 85

SP - 160

EP - 169

JO - Tunnelling and Underground Space Technology

JF - Tunnelling and Underground Space Technology

ER -

Explanation for twin tunnelling-induced surface settlements by changes in soil stiffness on account of stress history

Abstract

Bibliographical note

Keywords

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