INVESTIGATION OF VIBRATION PROPERTIES AT HAMMERING TEST OF TUNNEL LINING BASED ON NUMERICAL ANALYSIS

2019 ◽  
Vol 75 (1) ◽  
pp. 26-38
Author(s):  
Kiwamu TSUNO ◽  
Keisuke SHIMAMOTO
Keyword(s):  
Numerical Analysis ◽  
Tunnel Lining ◽  
Vibration Properties

An Approach to Determine the Stiffness Reduction Factor of Tunnel Lining

2011 ◽  
Vol 243-249 ◽  
pp. 3659-3662
Author(s):  
Hai Ying Zhou ◽  
Li Xin Li ◽  
Ting Guo Chen
Keyword(s):  
Numerical Analysis ◽  
Flexural Rigidity ◽  
Resistance Coefficient ◽  
Reduction Factor ◽  
Tunnel Lining ◽  
Soil Resistance ◽  
Stiffness Reduction ◽  
Simplified Method

Based on the segmental joint tests, it was found that the practical range of joint flexural rigidity was in range of 8500-29000kN•m/rad. A simplified method for determining the stiffness reduction factor of tunnel lining() was proposed using results from the segmental joint tests in which some parameters were obtained by calibration against a 3D Numerical analysis. The influence of joint flexural rigidity, soil resistance coefficient, thickness of tunnel lining and tunnel calculation radius on the stiffness reduction factor of tunnel lining was examined. The stiffness reduction factor can be simply expressed as a function of joint flexural rigidity ratio, soil resistance coefficient, thickness of tunnel lining and tunnel calculation radius for the typical tunnel lining.

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

Polymers ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 2704
Author(s):  
Kicheol Lee ◽  
Dongwook Kim ◽  
Soon-Wook Choi ◽  
Soo-Ho Chang ◽  
Tae-Ho Kang ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Numerical Analysis ◽  
Material Properties ◽  
Interfacial Adhesion ◽  
Laboratory Experiments ◽  
Tunnel Lining ◽  
Contact Conditions ◽  
Contact Behavior ◽  
Initial Strength ◽  
Interface Parameters

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.

scholarly journals Numerical Analysis of Tunnel Lining under Loosening Load

2011 ◽  
Vol 27 (7) ◽  
pp. 35-45
Author(s):  
Jung-Jin Park ◽  
Yong-Min Kim ◽  
Taik-Jean Hwang ◽  
Sang-Seom Jeong
Keyword(s):  
Numerical Analysis ◽  
Tunnel Lining

Evaluation of reverse faulting effects on the mechanical response of tunnel lining using centrifuge tests and numerical analysis

Géotechnique ◽  
2020 ◽  
Vol 70 (6) ◽  
pp. 490-502 ◽  
Author(s):  
Mohammad Hassan Baziar ◽  
Ali Nabizadeh ◽  
Nader Khalafian ◽  
Chung Jung Lee ◽  
Wen Yi Hung
Keyword(s):  
Numerical Analysis ◽  
Mechanical Response ◽  
Tunnel Lining ◽  
Centrifuge Tests ◽  
Reverse Faulting
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