4.7 Article

Mechanical properties and acoustic emission characteristics of deep hard coal after segmented high-temperature treatment

相关参考文献

注意:仅列出部分参考文献,下载原文获取全部文献信息。
Article Thermodynamics

Experimental study on acoustic emission characteristics of high-temperature thermal damage in an oxygen-rich environment of long flame coal

Rui Ding et al.

Summary: This paper investigates the development and evolution of cracks in the process of underground coal gasification using acoustic emission (AE) technique. The experiments were conducted on long flame coal samples heated to different temperatures in an oxygen-rich environment. The results show that the heating process can be divided into two stages based on AE counts, energy, and mass loss. The width of cracks on the surface of the coal samples gradually varies with the increase in heating temperature, becoming narrower at 500 degrees C due to tar condensation sealing the pores.

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY (2022)

Article Geochemistry & Geophysics

Influence of High-Temperature Treatment on Strength and Failure Behaviors of a Quartz-Rich Sandstone under True Triaxial Condition

Xiaoshuang Li et al.

Summary: This paper studied the effect of high temperature on the mechanical properties of quartz-rich sandstone through true triaxial pressure experiments. It was found that the properties of the sandstone, including color, brittleness, and ductility, significantly changed when heated to 500 degrees Celsius. The density, P-wave velocity, and elastic modulus showed a decreasing trend, while the peak stress and peak strain exhibited an overall upward trend with the increase in temperature.

LITHOSPHERE (2022)

Article Energy & Fuels

The strength changes and failure modes of high-temperature granite subjected to cooling shocks

Yanjun Shen et al.

Summary: This study investigates the effect of cooling shocks on high-temperature granite by inducing cooling shocks with different temperature refrigerants. The results show that the refrigerant temperature has a significant impact on the strength and failure modes of the granite, providing practical experience and references for geothermal development.

GEOMECHANICS AND GEOPHYSICS FOR GEO-ENERGY AND GEO-RESOURCES (2021)

Article Engineering, Geological

Splitting tensile mechanical behavior and failure characteristics of thermally-damaged rock

S. Liu et al.

Summary: The Brazilian disc specimen (BDS) and flattened Brazilian disc specimen (FBDS) test on thermally damaged rock showed that the failure modes of sandstone varied under different temperatures and strain rates, with the sample failure mode becoming more complex as the loading rate increased.

GEOTECHNIQUE LETTERS (2021)

Article Geosciences, Multidisciplinary

Stress transfer law and its influencing factors of mesoscopic fracturing of coal rock mass

Jiangwei Liu et al.

ARABIAN JOURNAL OF GEOSCIENCES (2020)

Article Engineering, Multidisciplinary

Damage Deformation and Acoustic Emission Characteristics of Raw Coal under Different Moisture Contents

Huiqiang Wu et al.

TEHNICKI VJESNIK-TECHNICAL GAZETTE (2020)

Article Environmental Sciences

On the mitigating environmental aspects of a vertical well in underground coal gasification method

Mohammadreza Shahbazi et al.

MITIGATION AND ADAPTATION STRATEGIES FOR GLOBAL CHANGE (2019)

Article Geochemistry & Geophysics

Study on acoustic-electric-heat effect of coal and rock failure processes under uniaxial compression

Zhong-Hui Li et al.

JOURNAL OF GEOPHYSICS AND ENGINEERING (2018)

Article Environmental Sciences

Different bedding loaded coal mechanics properties and acoustic emission

Jiajia Liu et al.

ENVIRONMENTAL EARTH SCIENCES (2018)

Article Engineering, Geological

Mechanical properties and damage constitutive model of coal in coal-rock combined body

X. S. Liu et al.

INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES (2018)

Article Engineering, Geological

Influence of heat treatment on dynamic and physical properties of anthracite coal

L. Yu et al.

GEOTECHNIQUE LETTERS (2017)

Article Geosciences, Multidisciplinary

Fractal characteristics and acoustic emission of coal containing methane in triaxial compression failure

Xiangguo Kong et al.

JOURNAL OF APPLIED GEOPHYSICS (2016)

Article Biochemical Research Methods

Hydrophobic interaction chromatography of proteins: Thermodynamic analysis of conformational changes

Rene Ueberbacher et al.

JOURNAL OF CHROMATOGRAPHY A (2010)