Show simple item record

contributor authorBo Liu
contributor authorZhiwei Yu
contributor authorRonghui Zhang
contributor authorYanhui Han
contributor authorZhiliu Wang
contributor authorShijie Wang
date accessioned2022-02-01T00:26:25Z
date available2022-02-01T00:26:25Z
date issued8/1/2021
identifier other%28ASCE%29GM.1943-5622.0002102.pdf
identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4271438
description abstractThe lining rings of a shield tunnel are connected by steel bolts, which play an important role in longitudinal structural deformation during long-term operation. In recent decades, there have been increasing numbers of tunnel-crossing projects. In order to better understand the impact of undercrossing excavations on existing tunnels and to provide a quick and effective tool for evaluating the behaviors of existing tunnels before construction, a simplified analytical method is proposed. In the proposed model, a tunnel was simplified into a series of short beams connected by shear, tensile, and compressive springs, and the Pasternak two-parameter foundation model was used to describe the tunnel–soil interaction. The tunnel model not only considers the shear effect between the linings but also the rotation effect of the lining ring. The field data from two cases were used to compare with the calculated results, and the predictions were found to be in good agreement with the measured data, thus verifying the effectiveness of the method.
publisherASCE
titleEffects of Undercrossing Tunneling on Existing Shield Tunnels
typeJournal Paper
journal volume21
journal issue8
journal titleInternational Journal of Geomechanics
identifier doi10.1061/(ASCE)GM.1943-5622.0002102
journal fristpage04021131-1
journal lastpage04021131-12
page12
treeInternational Journal of Geomechanics:;2021:;Volume ( 021 ):;issue: 008
contenttypeFulltext


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record