Hailiang Jia
Xi'an University of Science and Technology
Pore water pressureUltimate tensile strengthGeologyNanoporePermafrostSoil scienceSoil waterComposite materialChemistryGeotechnical engineeringMaterials scienceSoil resistivityWater contentScanning electron microscopeFreezing pointCompressive strengthEnvironmental scienceFrost (temperature)Soil testMacroporePorosityShear (geology)
18Publications
7H-index
127Citations
Publications 16
Newest
#1Zhenlong Ge (Xi'an University of Science and Technology)H-Index: 1
#2Qiang Sun (Xi'an University of Science and Technology)H-Index: 5
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Abstract null null Liquid nitrogen (LN2) ultra-low temperature fracturing technology has broad application prospects in the storage and transformation of geothermal wells. Therefore, it is of great significance to investigate the fracture toughness of granite samples after elevated temperature treatment and LN2 cooling. In this paper, the Cracked Straight Through Brazilian Disc (CSTBD) granite specimen was heat-treated at different temperatures to study the mode-I fracture toughness of granite a...
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#2Qiang Sun (Xi'an University of Science and Technology)H-Index: 5
Last. Tao LuoH-Index: 1
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Water-bearing porous rocks can be greatly strengthened by freezing; its microscopic mechanisms lie in how subzero temperature modifies pore structure but have not yet been clearly defined. In this study, we link the mechanical properties of frozen sandstone to phase composition of pore water (i.e., relative amount of unfrozen water and ice). Both the strength (uniaxial compressive strength and tensile strength) and the phase composition of pore water (tested through the nuclear magnetic resonanc...
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#1Hailiang Jia (Xi'an University of Science and Technology)H-Index: 7
#2Shun Ding (Xi'an University of Science and Technology)H-Index: 2
Last. Yuan YaoH-Index: 1
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In cold regions, the anisotropy of sedimentary rocks is modified by repeated frost action, potentially increasing the risks of rock engineering. Hence, a deep understanding of the development of rock anisotropy due to frost action is essential. In this work, two sets of sandstone samples were cored and used in experiments, which contained bedding planes either perpendicular or parallel to the height direction. The P-wave velocity, uniaxial compressive strength, tensile strength, and shear streng...
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#1Hailiang Jia (Xi'an University of Science and Technology)H-Index: 7
#2Ting Wang (Xi'an University of Science and Technology)
Last. Qiang Sun (Xi'an University of Science and Technology)H-Index: 3
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Abstract Engineering activities are becoming increasingly frequent in seasonally frozen and permafrost regions. Artificially thawing frozen soil before excavation may significantly increase the efficiency of excavation and reduce cost. Microwave irradiation can thaw frozen soil very rapidly, but has not yet been widely used in the field. One important reason is that the mechanisms of thawing and softening of frozen soil by microwave irradiation are not fully understood yet, therefore, the practi...
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#1He Zhang (Xi'an University of Science and Technology)H-Index: 2
#2Qiang Sun (Xi'an University of Science and Technology)H-Index: 5
Last. Tao LuoH-Index: 1
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High temperatures affect the physical properties of red sandstone seriously, especially the pores. Understanding its mechanism is of great significance in coal mining following underground gasification, geothermal energy utilization, and the deep burial of nuclear waste. Nuclear magnetic resonance (NMR) was used to detect pore structure characteristics, and scanning electron microscopy (SEM) and polarizing light microscopy (PLM) were used to mechanism of change. The transverse relaxation time (T...
1 CitationsSource
#1Liyun Tang (Xi'an University of Science and Technology)H-Index: 2
#2Liujun Yang (Xi'an University of Science and Technology)H-Index: 1
Last. Guoyu Li (CAS: Chinese Academy of Sciences)H-Index: 1
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Global warming has led to increasing pile foundation deterioration in permafrost regions. Theoretical analysis and indoor model tests were used to analyse variations in the shaft resistance and ult...
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#1Shun DingH-Index: 2
#2Hailiang JiaH-Index: 7
Last. Yuan YaoH-Index: 1
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Low-porosity tight rocks are widely used as building and engineering materials. The freeze-thaw cycle is a common weathering effect that damages building materials in cold climates. Tight rocks are generally supposed to be highly frost-resistant; thus, studies on frost damage in tight sandstone are rare. In this study, we investigated the deterioration in mechanical properties and changes in P-wave velocity with freeze-thaw cycles in a tight sandstone. We also studied changes to its pore structu...
1 CitationsSource
#1Yanjun Shen (Xi'an University of Science and Technology)H-Index: 37
#1Yanjun Shen (Xi'an University of Science and Technology)
Last. Rui-Xin Yan (Xi'an University of Science and Technology)H-Index: 2
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Abstract Sufficient bonding at concrete–rock interfaces is an important prerequisite when designing supports using concrete or shotcrete. However, the bonding between concrete and rock is often affected by low temperatures in cold regions. This study focuses on the effects that freeze–thaw cycles have on meso-debonding at sandstone–concrete interfaces. The prepared sandstone-concretes composite materials were subjected to freeze–thaw cycles and nuclear magnetic resonance (NMR) test. The effects ...
13 CitationsSource
#1Hailiang Jia (Xi'an University of Science and Technology)H-Index: 7
#2Fan Zi (Xi'an University of Science and Technology)H-Index: 3
Last. Pengyu Yang (Xi'an University of Science and Technology)H-Index: 1
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23 CitationsSource
#1Hailiang Jia (Xi'an University of Science and Technology)H-Index: 7
#2Shun Ding (Xi'an University of Science and Technology)H-Index: 2
Last. Gengshe Yang (Xi'an University of Science and Technology)H-Index: 8
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Abstract Understanding the freezing pattern of pore water is the basis for revealing the mechanisms of frost damage in porous rocks. We employed low-field nuclear magnetic resonance method, aided by high-resolution temperature measurements, to investigate the pore water freezing process of in sandstone. Samples were prepared with nine degrees of initial saturation (20% to 100% at 10% intervals). The results indicate the following: 1) pore water in fully-saturated sandstone consists of bound wate...
14 CitationsSource