首页|采动坡体变形破坏相似模拟试验装置的研发与应用

采动坡体变形破坏相似模拟试验装置的研发与应用

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针对采动坡体变形破坏相似模拟试验装置岩层面与水平面间倾角无法随意调节、相似材料充填效果较差、模拟不同倾角岩层和煤层开挖困难、模拟岩层状态欠佳与试验现象不明显等问题,研发一种采动坡体变形破坏相似模拟试验装置;并以煤洞坡变形体为例,使用通用离散单元法程序(UDEC)进行数值模拟,对比数值模拟与相似模拟试验结果.结果表明:该装置可适用于不同岩层倾角的相似模拟试验,可更好地模拟岩层状态以满足不同层面形态的需求,数值模拟与相似模拟试验结果一致,验证了该装置的精准性、可靠性及普适性.
Development and Application of a Similar Simulation Test Device for Deformation and Failure of Mining-induced Slope
Aiming at issues such as the inability to freely adjust the angle between the rock stratum and the horizontal plane,the poor filling quality of similar materials,difficulties in simulating excavation of rock strata and coal seams with varying dip angles,the undesirable status of simulation rock layer,and unconspicuous experimental phenomena in the similar simula-tion test device for deformation and failure of mining-induced slope bodies,a similar simulation test device for deformation and failure of mining-induced slope was researched and developed.The deformation of a coal mine slope was taken as an ex-ample to carried out numerical simulations using the Universal Distinct Element Code(UDEC),and the test results were compared with those obtained from similar simulations.The results show that this device is applicable to similar simulation tests involving different dip angles of the rock strata,allowing for better simulation of rock layer conditions to meet the needs of various layer forms.The consistent results between the numerical simulation and the similar simulation validates the accura-cy,reliability,and universal applicability of the device.

similar simulationmining-induced slopedevice developmentnumerical simulation

刘翔、陈希庆、张龙、李小宝

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贵州大学矿业学院,贵州 贵阳 550025

相似模拟 采动坡体 设备开发 数值模拟

2024

安全
北京市劳动保护科学研究所 中国职业安全健康协会

安全

影响因子:0.186
ISSN:1002-3631
年,卷(期):2024.45(12)