Effects of jack force and construction steps on the change of lining stresses in a TBM tunnel

Seok Ho Cho, Jeongsoo Kim, Jonghwa Won, Moon Kyum Kim

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

This study investigated the effects of construction sequence and thrust force from hydraulic jacks on the stress distribution of the tunnel lining by analyzing field data measured at a real Tunnel Boring Machine (TBM) tunnel construction site. A three-dimensional Finite Element (FE) model that incorporated the major design components of a TBM tunnel lining, such as face pressure, shield, grout, and hydraulic jack, as well as the simulation of a step-by-step construction procedure was also proposed. Specifically, the ring joints between linings were modeled using anisotropic solid elements to predict the effects of the jack force on the axial stresses in the lining. The proposed FE model was verified by comparing the numerical results with field data and various analytical and empirical formulas. Through this FE method, extra analyses were conducted with various ground conditions, dimensions of tunnel, and jack forces to investigate the effects of construction stage loads on the behaviors of a TBM tunnel. From analyzing these parametric results and field data, it was concluded that soil elastic modulus has strong influence on axial stresses in lining due to jack forces, and the axial stress of linings converged to roughly 30% of the peak stress.

Original languageEnglish
Pages (from-to)1135-1146
Number of pages12
JournalKSCE Journal of Civil Engineering
Volume21
Issue number4
DOIs
Publication statusPublished - 2017 May 1

Fingerprint

Jacks
Linings
Tunnels
Hydraulic tools
Tunnel linings
Stress concentration
Elastic moduli
Soils
Finite element method

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering

Cite this

@article{93bf969f332d48969858402fd778ff53,
title = "Effects of jack force and construction steps on the change of lining stresses in a TBM tunnel",
abstract = "This study investigated the effects of construction sequence and thrust force from hydraulic jacks on the stress distribution of the tunnel lining by analyzing field data measured at a real Tunnel Boring Machine (TBM) tunnel construction site. A three-dimensional Finite Element (FE) model that incorporated the major design components of a TBM tunnel lining, such as face pressure, shield, grout, and hydraulic jack, as well as the simulation of a step-by-step construction procedure was also proposed. Specifically, the ring joints between linings were modeled using anisotropic solid elements to predict the effects of the jack force on the axial stresses in the lining. The proposed FE model was verified by comparing the numerical results with field data and various analytical and empirical formulas. Through this FE method, extra analyses were conducted with various ground conditions, dimensions of tunnel, and jack forces to investigate the effects of construction stage loads on the behaviors of a TBM tunnel. From analyzing these parametric results and field data, it was concluded that soil elastic modulus has strong influence on axial stresses in lining due to jack forces, and the axial stress of linings converged to roughly 30{\%} of the peak stress.",
author = "Cho, {Seok Ho} and Jeongsoo Kim and Jonghwa Won and Kim, {Moon Kyum}",
year = "2017",
month = "5",
day = "1",
doi = "10.1007/s12205-016-0391-y",
language = "English",
volume = "21",
pages = "1135--1146",
journal = "KSCE Journal of Civil Engineering",
issn = "1226-7988",
publisher = "Korean Society of Civil Engineers",
number = "4",

}

Effects of jack force and construction steps on the change of lining stresses in a TBM tunnel. / Cho, Seok Ho; Kim, Jeongsoo; Won, Jonghwa; Kim, Moon Kyum.

In: KSCE Journal of Civil Engineering, Vol. 21, No. 4, 01.05.2017, p. 1135-1146.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Effects of jack force and construction steps on the change of lining stresses in a TBM tunnel

AU - Cho, Seok Ho

AU - Kim, Jeongsoo

AU - Won, Jonghwa

AU - Kim, Moon Kyum

PY - 2017/5/1

Y1 - 2017/5/1

N2 - This study investigated the effects of construction sequence and thrust force from hydraulic jacks on the stress distribution of the tunnel lining by analyzing field data measured at a real Tunnel Boring Machine (TBM) tunnel construction site. A three-dimensional Finite Element (FE) model that incorporated the major design components of a TBM tunnel lining, such as face pressure, shield, grout, and hydraulic jack, as well as the simulation of a step-by-step construction procedure was also proposed. Specifically, the ring joints between linings were modeled using anisotropic solid elements to predict the effects of the jack force on the axial stresses in the lining. The proposed FE model was verified by comparing the numerical results with field data and various analytical and empirical formulas. Through this FE method, extra analyses were conducted with various ground conditions, dimensions of tunnel, and jack forces to investigate the effects of construction stage loads on the behaviors of a TBM tunnel. From analyzing these parametric results and field data, it was concluded that soil elastic modulus has strong influence on axial stresses in lining due to jack forces, and the axial stress of linings converged to roughly 30% of the peak stress.

AB - This study investigated the effects of construction sequence and thrust force from hydraulic jacks on the stress distribution of the tunnel lining by analyzing field data measured at a real Tunnel Boring Machine (TBM) tunnel construction site. A three-dimensional Finite Element (FE) model that incorporated the major design components of a TBM tunnel lining, such as face pressure, shield, grout, and hydraulic jack, as well as the simulation of a step-by-step construction procedure was also proposed. Specifically, the ring joints between linings were modeled using anisotropic solid elements to predict the effects of the jack force on the axial stresses in the lining. The proposed FE model was verified by comparing the numerical results with field data and various analytical and empirical formulas. Through this FE method, extra analyses were conducted with various ground conditions, dimensions of tunnel, and jack forces to investigate the effects of construction stage loads on the behaviors of a TBM tunnel. From analyzing these parametric results and field data, it was concluded that soil elastic modulus has strong influence on axial stresses in lining due to jack forces, and the axial stress of linings converged to roughly 30% of the peak stress.

UR - http://www.scopus.com/inward/record.url?scp=84978137561&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84978137561&partnerID=8YFLogxK

U2 - 10.1007/s12205-016-0391-y

DO - 10.1007/s12205-016-0391-y

M3 - Article

AN - SCOPUS:84978137561

VL - 21

SP - 1135

EP - 1146

JO - KSCE Journal of Civil Engineering

JF - KSCE Journal of Civil Engineering

SN - 1226-7988

IS - 4

ER -