The deformation behavior of the soft rock applied in the construction of the underground pipe work engineering

Qingyang Ren, Huiming Tang, P. H.S.W. Kulatilake

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The deformation behavior of the rock and soil is a key problem in the construction of the underground pipe work, and will directly influence the time limit and difficulty of a project. Actually for the underground rock mass, the construction of pipe work is a stress release process which makes the deformation characteristic of the rock mass totally different with other conventional constructions, such as building construction, road and bridge construction. The reason is the stress paths of the two kinds of engineering are different; one is download stress path and the other is upload stress path, so the mechanical property and deformation characteristic of a kind of soft rock under both download and upload stress paths in the Three Gorges area were studied by using the elastoplastic modeling method. Through the experiments of lamellar marlstone of Badong formation, the manner of the interaction between plastic volume stain and shear strain, the direct effect of the plastic volume stain on shear resistance were investigated, and the conclusion that stress path is exactly the comprehensive performance form of the interaction between plastic volume stain and shear strain which has been proved by the trixal experiments of soft rock. Finally, the deformation behavior of marlstone was used to calculate the settlement in the numerical simulation of the underground pipe work's construction.

Original languageEnglish (US)
Title of host publicationICPTT 2013
Subtitle of host publicationTrenchless Technology - The Best Choice for Underground Pipeline Construction and Renewal, Proceedings of the International Conference on Pipelines and Trenchless Technology
Pages812-817
Number of pages6
DOIs
StatePublished - Dec 1 2013
EventInternational Conference on Pipelines and Trenchless Technology, ICPTT 2013 - Xi'an, China
Duration: Oct 16 2013Oct 18 2013

Publication series

NameICPTT 2013: Trenchless Technology - The Best Choice for Underground Pipeline Construction and Renewal, Proceedings of the International Conference on Pipelines and Trenchless Technology

Other

OtherInternational Conference on Pipelines and Trenchless Technology, ICPTT 2013
CountryChina
CityXi'an
Period10/16/1310/18/13

Keywords

  • Construction
  • Deformation behavior
  • Soft rock
  • Stress path
  • Underground pipe work

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction

Fingerprint Dive into the research topics of 'The deformation behavior of the soft rock applied in the construction of the underground pipe work engineering'. Together they form a unique fingerprint.

Cite this