Numerical Analysis of the Contact Behavior of a Polymer-Based Waterproof Membrane for Tunnel Lining

Waterproof membranes have higher initial strength, faster construction, and better waterproofing than conventional sheet membranes. In addition, their polymer constituents have much higher interfacial adhesion and tensile strength than those of conventional materials. However, despite their advantag...

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Bibliographic Details
Published inPolymers Vol. 12; no. 11; p. 2704
Main Authors Lee, Kicheol, Kim, Dongwook, Choi, Soon-Wook, Chang, Soo-Ho, Kang, Tae-Ho, Lee, Chulho
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 16.11.2020
MDPI
Subjects
Addition polymerization
Adhesive strength
Concrete
contact behavior
Friction
ground improvement
interface parameter
Material properties
Mechanical properties
Membranes
Numerical analysis
Polymers
Shear stress
Shear tests
Sprayed concrete
Tensile strength
Tunnel construction
Tunnel linings
waterproof membrane
Waterproofing
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Summary:Waterproof membranes have higher initial strength, faster construction, and better waterproofing than conventional sheet membranes. In addition, their polymer constituents have much higher interfacial adhesion and tensile strength than those of conventional materials. However, despite their advantages, waterproof membranes are not widely used in civil construction. This study evaluates the material properties and interface parameters of a waterproof membrane by considering the results of laboratory experiments and numerical analysis. Since the contact behavior of a membrane at its interface with shotcrete is important for understanding the mechanism of the support it offers known as a shotcrete tunnel lining, modeling should adopt appropriate contact conditions. The numerical analysis identifies the suitability and contact conditions of the waterproof membrane in various conditions.
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ISSN:2073-4360
2073-4360
DOI:10.3390/polym12112704