高级搜索
  • 全国中文核心期刊
  • 中国科技核心期刊
  • 美国工程索引（EI）收录期刊
  • Scopus数据库收录期刊

基于三维裂隙网络RQD的确定及最佳测线数量的研究

张文, 陈剑平, 牛岑岑, 鲍硕超, 许德智

张文, 陈剑平, 牛岑岑, 鲍硕超, 许德智. 基于三维裂隙网络RQD的确定及最佳测线数量的研究[J]. 岩土工程学报, 2013, 35(2): 321-327.
引用本文: 张文, 陈剑平, 牛岑岑, 鲍硕超, 许德智. 基于三维裂隙网络RQD的确定及最佳测线数量的研究[J]. 岩土工程学报, 2013, 35(2): 321-327.
shu
ZHANG Wen, CHEN Jian-ping, NIU Cen-cen, BAO Shuo-chao, XU De-zhi. Determination of RQD and number of optimum scanlines based on three-dimensional fracture network[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(2): 321-327.
Citation: ZHANG Wen, CHEN Jian-ping, NIU Cen-cen, BAO Shuo-chao, XU De-zhi. Determination of RQD and number of optimum scanlines based on three-dimensional fracture network[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(2): 321-327.
shu

基于三维裂隙网络RQD的确定及最佳测线数量的研究  English Version

  • 吉林大学建设工程学院，吉林 长春 130026

基金项目: 国家自然科学基金项目（40872170，41072196）；高校博士学科点专项科研基金项目（20090061110054）；吉林大学“985”计划项目（450070021107）；吉林大学创新基金项目（20121073）
详细信息

  • 中图分类号: TU642.5

Determination of RQD and number of optimum scanlines based on three-dimensional fracture network

  • College of Construction Engineering, Jilin University, Changchun 130026, China

摘要

    摘要
  • 摘要: 作为评价岩体质量好坏的重要指标，RQD的应用已十分广泛，其在工程地质与岩土工程的分析中发挥着重要的作用。而通过钻孔的方法进行RQD的获取具有明显缺点。真实岩体不同方向的RQD并不一致，而以垂直于地表的钻孔获取的RQD并不能完全代表整体岩体的好坏程度。引入三维裂隙网络的方法进行RQD的计算，在三维裂隙网络内设立测线，以测线的形式来模拟钻孔，获取指定方向的RQD值。岩体不同于其他人工材料，其具有明显的非均质性，即在不同位置获取的RQD值并不一致，现今RQD的研究则鲜有考虑。对岩体内的最佳测线数量进行了研究。结果表明：当沿x，y与z轴分别存在25，80与55条测线时，可获取岩体各方向的真实RQD值，且最大限度的节省计算时间以实施进一步的研究。
    Abstract: RQD, as an important parameter to reflect the rock mass quality, has been applied universally and played an important role in geological engineering and geotechnical engineering. There is an apparent defect for obtaining RQD values through drills. The RQD values vary in different directions. RQD through drills whose direction is perpendicular to the ground can not represent that in the rock mass. In this paper, the three-dimensional fracture network simulation is employed to calculate RQD. Scanlines, represented by the actual drill, are set in the rock mass, and RQD in different directions can be obtained. The rock masses are different from other materials, and the RQD values are different considering different points in the study rock mass. It is not considered in the former studies. The number of the optimum scanlines is studied. The results show that when the scanlines in x, y and z directions are 25, 80 and 55, the RQD values are real and the computing time is the minimum.
    • HTML全文
    • 参考文献(15)
  • [1] 伍法权. 统计岩体力学原理[M]. 武汉: 中国地质大学出版社, 1993.(WU Fa-quan.
    Principles of statistical mechanics of rock masses[M]. Wuhan: China University of Geoscience Press, 1993. (in Chinese))
    [2] 徐光黎,唐辉明,潘别桐,等. 岩体结构模型与应用[M]. 武汉：中国地质大学出版社，1993. (XU Guang-li, TANG Hui-ming,PAN Bie-tong, et al. Structural model and application of rock masses[M]. Wuhan:ChinaUniversity of Geoscience Press, 1993. (in Chinese))
    [3] 陈剑平,肖树芳,王 清. 随机不连续面三维网络计算机模拟原理[M]. 长春: 东北师范大学出版社, 1995.(CHEN Jian-ping, XIAO Shu-fang, WANG Qing. Three-dimensional network modeling of stochastic fractures[M]. Changchun
    [4] 王坛华. 基于三维裂隙网络模拟技术的裂隙网络水力研究及隧道涌水非线性预测[D]. 长春: 吉林大学, 2008.(WANG Tan-hua.
    Study of fissureed rock mass hydraulics based on 3-D network simulation and nonlinear prediction of gushing water in tunnel[D]. Changchun: Jilin University, 2008. (in Chinese))
    [5] 李晓春. 小湾水电站坝肩岩体裂隙网络渗流的三维网络与无网络法耦合模型研究[D]. 长春: 吉林大学, 2005.(LI Xiao-chun.
    Meshless method on seepage in fractured rock mass in Xiaowan dam site with 3D network computational simulating technique for random discontinuous[D]. Changchun: Jilin University, 2005. (in Chinese))
    [6] 陈剑平,卢 波,王良奎,等. 复杂不稳定块体的自动搜索及其失稳方式判断—基于随机不连续面三维网络模型[J]. 岩石力学与工程学报, 2003,22(7):1126-1131. (CHEN Jian-ping, LU Bo, WANG Liang-kui, et al. Automatic search for complex unstable rock block and the judgement of unstability mode-based on 3D fracture simulation of random fractures[J]. Chinese Journal of Rock Mechanics and Rock Engineering, 2003, 22(7)
    [7] DEERE D. Technical description of rock cores for engineering purposes[J]. Felsmechanik und Ingeneturgeologie, 1964,1(1):16-22.
    [8] 陈剑平. 岩体随机不连续面三维网络数值模拟技术[J]. 岩土工程学报, 2001,22(4):397-402. (CHEN Jian-ping.
    3-D network numerical modeling technique for random discontinuities of rock mass[J]. Chinese Journal of Geotechnical Engineering, 2001, 22(4): 397-402. (in Chinese))
    [9] 陈剑平,卢 波,谷宪民,等. 节理岩体三维综合抗剪强度数值模拟研究[J]. 岩石力学与工程学报, 2006,25(7):1463-1468. (CHEN Jian-ping, LU Bo, GU Xian-min, et al. Numerical simulation study on 3D comprehensive shear strength of fractured rock mass[J]. Chinese Journal of Rock Mechanics and Rock Engineering, 2006, 25(7)
    [10] PRIEST S D, HUDSON J A. Estimation of discontinuity spacing and trace length using scanline surveys[J]. Int J Rock Mech Min Sci Geomech Abstr, 1981,18(3):183-197.
    [11] 陈剑平,王 清,赵红亮. 窗口测线法获取岩体RQD[J]. 岩石力学与工程学报, 2004,23(9):1491-1495. (CHEN Jian-ping, WANG Qing, ZHAO Hong-liang.
    Obtaining RQD of rock mass by sampling window method[J]. Chinese Journal of Rock Mechanics and Rock Engineering, 2004, 23(9): 1491-1495. (in Chinese))
    [12] 陈剑平,石丙飞,王树林,等. 单测线法估算随机节理迹长的数值技术[J]. 岩石力学与工程学报, 2004,23(10):1755-1759. (CHEN Jian-ping, SHI Bing-fei, WANG Shu-lin, et al. Numerical modeling technique of single scan line method to assess joint frace length[J]. Chinese Journal of Rock Mechanics and Rock Engineering, 2004, 23(10)
    [13] PRIEST S D, HUDSON J A. Discontinuity spacing in rock[J]. International Journal of Rock Mechanics and Mining Science & Geomechanics Abstracts, 1976,13(3):135-148.
    [14] SNOW D T. Rock fracture spacings, openings, and porosities[J]. Journal of the Soil Mechanics and Foundation Division, ASCE,1968, 94(SM1):73-91.
    [15] WINES D R, LILLY P A. Measurement and analysis of rock mass discontinuity spacing and frequency in part of the Fimiston Open Pit operation in Kalgoorlie, Western Australia: a case study[J]. International Journal of Rock Mechanics and Mining Science, 2002,39(5):589-602.
    • 相关文章
    • 施引文献
    • 资源附件(0)
计量
  • 文章访问数:  943
  • HTML全文浏览量:  1
  • PDF下载量:  1203
  • 被引次数: 0
出版历程
  • 收稿日期:  2012-03-08
  • 发布日期:  2013-03-06

目录

摘要
HTML全文
    参考文献(15)
    相关文章
    施引文献
    资源附件(0)

    /

    返回文章
    返回
    版权所有 © 2010水利部交通部国家能源局南京水利科学研究院 苏ICP备05007122号-11公安联网备案号：32010602011255
    编辑部地址：南京市虎踞关34号《岩土工程学报》编辑部邮编：210024电话：025-85829534，85829556E-mail: ge@nhri.cn