深部煤岩动力灾害多场耦合试验系统研制及应用

doi:10.3724/1000-6915.jrme.2024.0658

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摘要目前，学术界尚无法凝练出统一的冲击地压孕育机制适用条件。通过自主研制深部煤岩动力灾害多场耦合试验系统，将“应力–温度–渗流–扰动”多物理场耦合分析方法应用到冲击地压影响因素研究中，系统开展单物理场(单轴试验与常规三轴试验)以及双物理场(“围压+渗流”与“围压+扰动”)的对比试验。这既验证自主研制设备的可靠性，也为多物理场下冲击地压诱发因素的准确拾取与可靠辨识提供强有力的理论依据。试验结果表明：(1) 深部煤岩动力灾害多场耦合试验系统可开展常温、高温环境及低频动力扰动下的煤岩体单轴、三轴压缩试验、循环加卸载试验及三向耦合条件下渗透试验，可满足不同工程岩体复杂应力路径下的试验需求且试验结果可靠。(2) 开展相关动力扰动多场耦合试验，通过分析加载过程中的能量指标来表征煤样损伤过程，发现煤样围压从0 MPa提升至4 MPa后，平均峰值强度分别为14.75，62.67 MPa；单物理场累计能量为24.3×105 mV•ms，双物理场状态下累计能量达52.0×105 mV•ms，进一步说明扰动强化了煤体强度并加剧了破坏程度。(3) 通过RA/AF指标划分煤样的破坏类型，发现在三轴受力条件下不同物理场破坏类型复杂程度加剧，其中剪切破坏仍占主导。直观地表明了不同物理场煤样强度受围压影响明显，整体表现为多场耦合作用下监测数据的离散性显著增大。(4) 由于现场真实赋存环境为动力学与静力学以及渗流力学叠加的多作用方式，这加剧了精准防治的难度，上述分析结果对进一步建立复杂应力条件下冲击地压防治体系具有重要意义。

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	许慧聪1
	2
	来兴平1
	2
	单鹏飞1
	2
	张帅1
	杨攀1
	王华川1
	3
	李杰宇1
	2
	李伟4

关键词 ：采矿工程, 动力灾害, 扰动, 多场耦合, 试验系统, 响应机制

Abstract：At present，the academic community has not yet been able to condense the applicable conditions of the unified rock burst inoculation mechanism. Through the self-developed multi field coupling test system for deep coal and rock dynamic disasters，the“stress-temperature-seepage-disturbance” multi physical field coupling analysis method is applied to the study of the influencing factors of rock burst. The single physical field(uniaxial test and conventional triaxial test) and the double physical field(confining pressure-seepage and confining pressure-disturbance) comparative test. This not only verifies the reliability of the self-developed equipment，but also provides a strong theoretical basis for the accurate picking and reliable identification of the induced factors of rock burst under multi physical fields. The test results show that：(1) The multi-field coupling test system of deep coal-rock dynamic disaster can carry out uniaxial and triaxial compression tests，cyclic loading and unloading tests and permeability tests under three-way coupling conditions under normal temperature，high temperature environment and low frequency dynamic disturbance. It can meet the test requirements of different engineering rock masses under complex stress paths and the test results are reliable. (2) The energy index in the loading process is analyzed by the multi-field coupling test of related dynamic disturbance to characterize the damage process of coal samples. It is found that when the confining pressure of coal sample is increased from 0 MPa to 4 MPa，the average peak strength is 14.75 MPa and 62.67 MPa respectively. The cumulative energy of single physical field is 24.3×105 mV•ms，and the cumulative energy of double physical field is 52.0×105 mV•ms. This further indicates that the disturbance strengthens the strength of the coal body and aggravates the degree of damage. (3) The failure types of coal samples are divided by RA/AF index. It is found that the complexity of different physical field failure types is aggravated under triaxial stress conditions，and shear failure is still dominant. This intuitively shows that the strength of coal samples in different physical fields is obviously affected by confining pressure. The overall performance is that the discreteness of monitoring data under multi-field coupling is significantly increased. (4) Because the real occurrence environment of the site is a multi-action mode of superposition of dynamics，statics and seepage mechanics，which aggravates the difficulty of prevention and control. The above analysis results are of great significance for further establishing the prevention and control system of rock burst under complex stress conditions.

Key words： mining engineering dynamic disaster disturbance multi-field coupling test systems response mechanisms

引用本文:

许慧聪1，2，来兴平1，2，单鹏飞1，2，张帅1，杨攀1，王华川1，3，李杰宇1，2，李伟4. 深部煤岩动力灾害多场耦合试验系统研制及应用[J]. 岩石力学与工程学报, 2025, 44(4): 926-939.
XU Huicong1，2，LAI Xingping1，2，SHAN Pengfei1，2，ZHANG Shuai1，YANG Pan1，WANG Huachuan1，3，LI Jieyu1，2，LI Wei4. Development and application of multi-field coupling test system for deep coal-rock dynamic disaster. , 2025, 44(4): 926-939.

链接本文:

https://rockmech.whrsm.ac.cn/CN/10.3724/1000-6915.jrme.2024.0658 或 https://rockmech.whrsm.ac.cn/CN/Y2025/V44/I4/926

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