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| 工作面上覆岩层活动规律的数值模拟分析 | |
| 引用本文： | 王戈,鞠巍,石兴龙,秦涛. 工作面上覆岩层活动规律的数值模拟分析[J]. 煤矿安全, 2012, 43(4): 146-149 |
| 作者姓名： | 王戈 鞠巍 石兴龙 秦涛 |
| 作者单位： | 1. 龙煤集团七台河分公司,黑龙江七台河,154600 2. 煤炭科学研究总院沈阳研究院,辽宁沈阳,110016 3. 黑龙江科技学院,黑龙江哈尔滨,150027 |
| 摘 要： | 为了研究倾斜薄煤层顶板岩层活动规律,运用RFPA2D软件对原型为水平方向200 m、竖直方向200 m,标高为-214 m～-414 m范围内的岩体建立数值模型,对东风煤矿43002工作面煤层上覆岩层破坏进行数值模拟分析,再现煤层的开采所导致的上覆岩层的活动情况。模拟结果表明:随工作面推进顶板破坏状况越严重,图片中的灰度值表示岩石的受力状态,灰度值小的区域为岩石受剪应力集中区域,灰度值大的区域为岩石受拉应力集中区域。 |
| 关 键 词： | 覆岩活动规律 数值模拟 走向 倾向 |
Numerical Simulation of Overburden Activities Laws at Working Face |
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| WANG-Ge,JU-Wei,SHI Xing-long,QIN-Tao. Numerical Simulation of Overburden Activities Laws at Working Face[J]. Safety in Coal Mines, 2012, 43(4): 146-149 | |
| Authors: | WANG-Ge JU-Wei SHI Xing-long QIN-Tao |
| Affiliation: | 1.Qitaihe Branch of Longmei Group,Qitaihe 154600,China;2.Shenyang Branch of China Coal Research Institute,Shenyang 110016,China;3.Heilongjiang Institute of Science and Technology,Haerbin 150027,China) |
| Abstract: | In order to study the activities laws of the roof strata in inclined thin seam,in this paper,RFPA2Dsoftware is used to establish numerical model for the rock range with the horizontal direction 200 m,vertical direction 200 m and the elevation of-214 m~-414 m.The overburden failure conditions above seam in Dongfeng mine 43002 face are analyzed by numerical simulation,the overlying strata activities conditions caused by seam mining are reproduced.The results show that the roof failure statuses are more serious with the face advancing.The gray value of the picture expresses force state of rock,low gray value expresses shear stress concentration areas of the rock,high gray value expresses tensile stress concentration area of the rock. |
| Keywords: | overburden activities law numerical simulation strike inclination |
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