| 基于 ANSYS 二次开发的采场损伤演化规律研究 |
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| 引用本文： | 师访,程红梅,许爱斌.基于 ANSYS 二次开发的采场损伤演化规律研究[J].济南大学学报(自然科学版),2012,26(2):217-220. |
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| 作者姓名： | 师访 程红梅 许爱斌 |
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| 作者单位： | 中国矿业大学深部岩土力学与地下工程国家重点实验室,江苏徐州221116;中国矿业大学力学与建筑工程学院,江苏徐州221116 |
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| 基金项目： | 国家重点基础研究发展计划﹙973﹚﹙2011CB201205﹚ |
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| 摘 要： | 基于 ANSYS 软件的 UPFs 二次开发平台，借助损伤变量描述煤岩体的裂隙演化，建立弹性损伤本构模型，对单一煤层分步开采过程进行模拟并研究其损伤演化规律。研究表明，随着工作面的推进，损伤不断扩展，覆岩损伤场的分布形态沿走向由“拱形”向“马鞍形”转变。上覆岩层水平方向中部观测线上，随岩层深度的增加，观测到的初始损伤值减小，损伤增长剧烈程度增加。
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| 关 键 词： | 岩石力学 损伤 ANSYS 二次开发 |
Damage Evolution Law Research of Slope Based on ANSYS Second Development |
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| SHI Fang
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CHENG Hong-mei
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XU Ai-bin.Damage Evolution Law Research of Slope Based on ANSYS Second Development[J].Journal of Jinan University(Science & Technology),2012,26(2):217-220. |
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| Authors: | SHI Fang CHENG Hong-mei XU Ai-bin |
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| Institution: | a,b (a.State Key Laboratory for Geomechanics and Deep Underground Engineering; b.School of Mechanics and Civil Engineering,China University of Mining and Technology,Xuzhou 221116,China) |
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| Abstract: | In order to research fracture distribution law and gas migration law of coal and rock by mining,a second development platform ANSYS UPFs was used.An elastic damage constitutive model has been built with the help of damage variable,which can be used to describe the fracture evolution of coal and rock.It is found that the damage develops and grows with working face advancing,and the distribution feature of damage field changes from arch to saddle along the strike.In the horizontal middle survey line of the overlain strata,the observed initial damage values decrease and the damage growth rate increases. |
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| Keywords: | geomechanics damage ANSYS second development |
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