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Thawing and Softening of Frozen Sandstone by Microwave Irradiation
The strength and hardness of rock are much higher at freezing temperatures than at room temperature. This results in high excavation costs and low...
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Experimental study on ultrasonic characteristics of frozen sandstone under uniaxial compression
As one of the main means of non-destructive testing, ultrasonic waves can effectively detect damage inside rock, which provides an important basis...
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Dynamic Mechanical Responses and Freezing Strengthening Mechanism of Frozen Sandstone with Single Flaw: Insights from Drop Weight Tests and Numerical Simulation
The dynamic mechanical behavior of frozen rock with a flaw is essential for plateau alpine region mining. However, the freezing temperature’s...
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Dynamic mechanical properties and energy dissipation of frozen weakly cemented red sandstone under high strain rate loading
To study the influence of a sub-zero temperature environment on the dynamic characteristics of weakly cemented red sandstone rock, a series of...
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Fracture Mechanical Properties of Frozen Sandstone at Different Initial Saturation Degrees
The fracture mechanics of frozen rock are important to engineering in cold regions, yet the basic properties and influences remain unclear. The...
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Spatial Failure Mode Analysis of Frozen Sandstone Under Uniaxial Compression Based on CT Technology
This study investigated the effects of freezing temperature on the failure modes of frozen sandstone under uniaxial compression loading conditions....
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Constitutive model of frozen red sandstone based on ice-solid binary medium
Based on the triaxial compression test results of frozen red sandstone, combined with rock failure characteristics, the frozen rock is considered...
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Effects of water content and temperature on creep properties of frozen red sandstone: an experimental study
To investigate the long-term stability of geotechnical engineering in cold regions, a low-temperature triaxial creep test device was developed for...
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Modification of silty clay subgrade filler with red Pisha sandstone and carbide slag in seasonally frozen regions
Proper utilization of lower cost waste materials and industrial by-products for subgrade filling soil stabilization is an avenue of resource...
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A study on crack damage stress and the damage constitutive model of frozen sandstone
The artificial ground freezing (AGF) method has been widely used in underground engineering construction. As the main load-bearing elements of the...
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Linking the mechanical properties of frozen sandstone to phase composition of pore water measured by LF-NMR at subzero temperatures
Water-bearing porous rocks can be greatly strengthened by freezing; its microscopic mechanisms lie in how subzero temperature modifies pore structure...
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Experimental Study on Sandstone Fracture and Damage Evolution Law Under Freeze–Thaw Cycles
To investigate the effect of freeze–thaw cycles on sandstone's internal fracture development and damage evolution by analyzing the mechanical...
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Investigation on the Dynamic Cracking Mechanism of Sandstone with an Ice-Saturated Flaw Based on Drop Weight Tests
The cracking mechanism of ice-saturated fissured rock is crucial when using the freezing method to construct shafts with water-rich soft rock layers....
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Mechanical Characteristics of Red Sandstone Subjected to Freeze–Thaw Cycles and Increasing Amplitude Cyclic Load
It is of great significance to study the influence of freeze–thaw cycles on rock for the prevention and treatment of tunnel diseases in cold regions....
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Research on Deterioration Mechanism and Dynamic Triaxial Compression Characteristics of Freeze–Thaw Sandstone
Rock engineering in cold regions is in special environment of freeze–thaw cycle (FTC) and complex stress, and its mechanical properties would be...
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Experimental investigation on the damage and deterioration of sandstone subjected to cycling pore water pressure
The nuclear magnetic resonance (NMR), ultrasonic testing, and triaxial compression tests were employed to investigate the deterioration laws of...
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Laboratory investigation on mechanical and hydraulic properties of sandstone under freeze–thaw cycle
In the process of mine construction using artificial ground freezing, the rock mass in the frozen walls experiences frost heaving damage during...
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Decay function and damage strain model of fresh sandstone subjected to freeze–thaw cycles
Freeze–thaw cycle is one of the primary rock physical weathering agents which causes the deterioration and softening of rocks in cold regions. The...
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The Effects of Cooling on Fine-Grained Sandstone in Relation to Wellbore Injection of Carbon Dioxide
In Carbon Capture and Storage (CCS) procedures, it is important to determine the stability of the wellbore during carbon dioxide (CO 2 ) injection and...
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Damage Properties and Rheological Model of Spatial-Rotation Fissured Red Sandstone Subjected to Freeze–Thaw and Loading
The occurrence of preset flaws can influence the mechanical, physical, and other related properties of rock samples. To study the failure...
