Geo-treatments in constructing a tunnel in karst strata: Lessons learned from a subway project in Guangzhou, China

Qing L. Cui, Ye S. Xu, Shui L. Shen, Huai N. Wu, Zhen Y. Yin

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

1 Citation (Scopus)

Abstract

This paper presents tunnel construction in caved karst strata base on the metro subway project between Maanshan Park station and Liantangnan station (Ma-Lian section) of Guangzhou metro line No. 9. The karst is highly developed with 98 karst caves along the tunnel route. The soil in the tunnel zone mainly consists of soft residual deposit, sand and slightly weathered limestone, which are unstable during construction. Complicated ground conditions were encountered during tunnel excavation, such as upper-soft-lower-hard ground, sand layer and caved karst. Geological risks including sink holes, water or stone ingress, and damage to constructed tunnels and the shield may occur during tunneling in the project of Ma-Lian section. Construction problems may be encountered during tunneling excavation, such as caved karst treatment and tunneling in complicated ground. Recommended solutions and modifications are proposed to solve the above problems.

Original languageEnglish
Title of host publicationInnovative Materials and Design for Sustainable Transportation Infrastructure - Selected Papers from the International Symposium on Systematic Approaches to Environmental Sustainability in Transportation
EditorsJenny Liu, Xiong Zhang, Sheng Zhao
PublisherAmerican Society of Civil Engineers (ASCE)
Pages260-266
Number of pages7
ISBN (Electronic)9780784479278
DOIs
Publication statusPublished - 1 Jan 2015
Externally publishedYes
EventInternational Symposium on Systematic Approaches to Environmental Sustainability in Transportation: Innovative Materials and Design for Sustainable Transportation Infrastructure - Fairbanks, United States
Duration: 2 Aug 20155 Aug 2015

Publication series

NameInnovative Materials and Design for Sustainable Transportation Infrastructure - Selected Papers from the International Symposium on Systematic Approaches to Environmental Sustainability in Transportation

Conference

ConferenceInternational Symposium on Systematic Approaches to Environmental Sustainability in Transportation: Innovative Materials and Design for Sustainable Transportation Infrastructure
CountryUnited States
CityFairbanks
Period2/08/155/08/15

ASJC Scopus subject areas

  • Civil and Structural Engineering

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