CONTACT ALGORITHM OF 3D MECHANICAL FINITE ELEMENT MODELING FOR SEPARATION OF OVERBURDEN LAYERS AND ITS APPLICATION
-
摘要: 针对覆岩离层这一特殊的接触问题提出了新的接触算法，并采用大规模并行计算方法实现了对离层进行真正三维的力学模拟，从而得到覆岩离层空间几何形态参数。以济宁二号煤矿西部十一采区为研究实例，验证了算法的适用性及有效性。Abstract: Based on the specialty of separation layer, this paper proposes a new contact algorithm with the adoption of massive parallel computation for the study of separation of overburden layers in coal mine production. We have done the real 3D mechanic simulation and get the potential location, shape and volume for separation of overburden layers. Meanwhile, the study takes the area of No.2 coal mine of Jining as an example, which proves the applicability and validity of this new algorithm.
-
表 1 采区覆岩层空间分布及力学参数
Table 1. Spatial distribution and mechanical parameters of each layer
表 2 离层数据
Table 2. tatistics of separation layers
-
[1] 何国清, 杨伦, 凌赓娣.矿山开采沉陷学[M].徐州:中国矿业大学出版社, 1991HE Guo-qing, YANG Lun, LING Geng-di. Mining subsidence[M]. Xuzhou:China University of Mining and Technology Press, 1991. [2] 杨伦, 于广明. 采矿下沉的再认识[C]//第七届国际矿测学术会议文集. 1987 http://www.oalib.com/paper/4421555YANG Lun, YU Guang-ming. Re-recognization of mining submersion[C]//Collected works of the 7th International Symposium on Mine Surveying. 1987. http://www.oalib.com/paper/4421555 [3] 宋杨, 宋振骐.采场支撑压力显现规律与上覆岩层运动的关系[J].煤炭学报, 1991, 9(1):47~56 http://cdmd.cnki.com.cn/Article/CDMD-11413-1015444972.htmSONG Yang, SONG Zhen-qi. Relationship between abutment pressure distribution laws of working faces and movement of overburden rocks[J]. Journal of China Coal Society, 1991, 9(1):47~56. http://cdmd.cnki.com.cn/Article/CDMD-11413-1015444972.htm [4] 苏仲杰, 于光明, 杨伦.覆岩离层变形力学模型及应用[J].岩土工程学报, 2002, 24(6):778~781 http://www.cnki.com.cn/Article/CJFDTOTAL-YTGC200206023.htmSU Zhong-jie, YU Guang-ming, YANG Lun. Application of mechanical model to deformation of covered rock seperation strata[J]. Chinese Journal of Geotechnical Engineering, 2002, 24(6):778~781. http://www.cnki.com.cn/Article/CJFDTOTAL-YTGC200206023.htm [5] 梁运培.采场覆岩移动的组合岩梁理论[J].地下空间, 2001, 21(5):341~345 http://www.cnki.com.cn/Article/CJFDTOTAL-BASE2001S1000.htmLIANG Yun-pei. Study on the composed rock timber theory of overlying strata movement[J]. Underground Space, 2001, 21(5):341~345. http://www.cnki.com.cn/Article/CJFDTOTAL-BASE2001S1000.htm [6] 张健全, 廖国华.覆岩离层产生的机理及离层计算方法的探讨[J].地下空间, 2001, 21(增刊):407~417 doi: 10.3969/j.issn.1673-0836.2001.01.005ZHANG Jian-quan, LIAO Guo-hua. Investigation on formation mechanism of separated layer of rock vovering and calculation method of separated layer[J]. Underground Space, 2001, 21(Supp.):407~417. doi: 10.3969/j.issn.1673-0836.2001.01.005 [7] 贾君莹, 钟亚平, 王素华, 等.铁路下特厚煤层综放开采覆岩离层规律实测研究[J].矿山测量, 2008, (4):59~62 http://www.cnki.com.cn/Article/CJFDTOTAL-KSCL200804022.htmJIA Jun-ying, ZHONG Ya-ping, WANG Su-hua, et al. Observation research on overburden movement and bed-separation laws by fully mechanized top coal caving in extremely thick coal seam beneath railway[J]. Mine Surveying, 2008, (4):59~62. http://www.cnki.com.cn/Article/CJFDTOTAL-KSCL200804022.htm -
下载:
图(9) / 表(2)
计量
- 文章访问数: 213
- HTML全文浏览量: 120
- PDF下载量: 7
- 被引次数: 0
