Journal ArticleDOI
An elasto-visco-plastic model based on stress functions for deformation and damage of water-saturated rocks during the freeze-thaw process
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In this paper, an elasto-visco-plastic model based on stress functions is proposed, which consists of the elastic, viscoelastic and viscoplastic submodels.About:
This article is published in Construction and Building Materials.The article was published on 2020-07-30. It has received 48 citations till now. The article focuses on the topics: Viscoplasticity & Viscoelasticity.read more
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Effects of cyclic freeze-thaw treatments on the fracture characteristics of sandstone under different fracture modes: Laboratory testing
TL;DR: In this paper, the authors investigated the fracture toughness of sandstone specimens with different crack inclinations (0°, 5°, 15°, 30°, 45° and 54°) and showed that cyclic F-T treatments can lead to degradation in fracture toughness values.
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Effects of the lining structure on mechanical and fracturing behaviors of four-arc shaped tunnels in a jointed rock mass under uniaxial compression
TL;DR: In this article, a series of uniaxial compression tests were performed on the physical models containing joints and tubes made of high-strength gypsum, and the fracturing characteristics of models with joints of different combinations were obtained.
Journal ArticleDOI
Analytical and numerical analysis for frost heaving stress distribution within rock joints under freezing and thawing cycles
TL;DR: In this article, a 3D model that considers moisture migration loss during freezing and thawing was established to study the characteristics of frost heaving force within joints, and the numerical simulation of cyclic freeze-thawing of water-bearing joints was carried out through equivalent expansion coefficient and particle flow calculation methods.
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The propagation mechanism of an oblique straight crack in a rock sample and the effect of osmotic pressure under in-plane biaxial compression
TL;DR: In this paper, the propagation mechanism of an oblique straight crack has been studied theoretically, which reveals its mechanical characteristics under in-plane biaxial compression, and the effect of stresses on the strength of cracked rocks is discussed.
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Nonlinear shear constitutive model for peak shear-type joints based on improved Harris damage function
TL;DR: In this paper, a new constitutive model of saw-tooth joints was proposed based on Improved Harris function and laboratory shear tests, which can represent the trend of peak shear curve variation with higher accuracy, the parameters are easy to be solved and have obvious physical significance.
References
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Journal ArticleDOI
Effect of water saturation on deterioration of welded tuff due to freeze-thaw action
T.C. Chen,M.R. Yeung,N. Mori +2 more
TL;DR: In this paper, a freeze-thaw test was conducted for only one cycle including 2 h of freezing and 1.5 h of thawing, and the deterioration of the specimens was examined by the changes in the uniaxial compressive strength, P-wave velocity and porosity.
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Damage in granite under heating/cooling cycles and water freeze-thaw condition
TL;DR: The physicomechanical properties of the rocks are essential when assessing their suitability for use as dimension stone, as well as their durability as discussed by the authors, and they affect the microstructural properties by inducing new microcracks and mineralogical changes in the material.
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Estimating the index properties of deteriorated carbonate rocks due to freeze-thaw and thermal shock weathering
TL;DR: In this article, a model equation predicting the index properties of carbonate rocks due to freeze-thaw and thermal shock treatment was developed by multiple regression analysis of measured data and validated by statistical tests.
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A decay function model for the integrity loss of rock when subjected to recurrent cycles of freezing-thawing and heating-cooling
M Mutlutürk,R. Altindag,G Türk +2 more
TL;DR: In this paper, a mathematical model describing the integrity loss process when a rock is subjected to recurrent cycles of freezing and thawing and will be subjected to heating and cooling is presented.
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Predicting mechanical strength loss of natural stones after freeze–thaw in cold regions
TL;DR: In this article, a statistical model was developed for predicting the percentage loss values in uniaxial compression strength from intact tests of impact strength, modulus of elasticity and water absorption.