基于三维激光扫描技术的结构面抗剪强度参数各向异性研究

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (927 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要结构面粗糙度系数(JRC)是影响结构面抗剪强度的关键因素之一，结构面粗糙度和结构面抗剪强度各向异性研究对于工程岩体变形和稳定性分析具有十分重要的意义。鉴于目前基于三维激光扫描技术进行分形维数与结构面抗剪强度各向异性的研究成果较少，本文以贵州省某水库拱坝地基白云岩结构面为研究对象，采用三维激光扫描技术获取结构面表面形貌数据，建立表面形态三维数字高程模型，基于变差函数法研究结构面分形维数的各向异性。根据Barton标准轮廓曲线建立粗糙度系数(JRC)与分形维数(D)之间的函数关系式。根据结构面粗糙度各向异性与结构面的实际受力状态，基于Barton方程进行结构面抗剪强度参数的各向异性研究，结果表明：c，值分别为0.20～0.75 MPa和9.09°～36.87°，并且各向异性均较明显，在同一剪切方向值越小，c值呈越大的趋势。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章

关键词 ：岩石力学, 结构面粗糙度系数, 分形维数, 抗剪强度, 各向异性, 三维激光扫描技术

Abstract：Joint roughness coefficient(JRC) is one of the key factors affecting the discontinuity shear strength. The research on the discontinuity roughness and shear strength anisotropy is of great significance to engineering rock mass deformation and stability analysis. Currently，there are few papers reported on the discontinuity fractal dimension and its shear strength anisotropic analysis based on three-dimensional(3D) laser scanning technology. Taking a dam site in Guizhou Province for example，discontinuity surface morphology data obtained through 3D laser scanning are used to establish a digital elevation model to evaluate shear strength anisotropic of dolomite joint. On the basis of the variation function method，the anisotropy of discontinuity fractal dimension is studied and corresponding functional relationship between JRC and fractal dimension(D) is established. According to Barton standard contour curve and the actual stress state of dolomite，anisotropies of shear strength parameters based on the Barton equation are examined. The results show that cohesion and fiction angle change within the range of 0.20 to 0.75 MPa and 9.09° to 36.87°，respectively. The anisotropies of cohesion and friction angle are obvious，and the cohesion increases as the friction angle decreases in the same shear direction.

Key words： rock mechanics joint roughness coefficient(JRC) fractal dimension shear strength anisotropy three-dimensional(3D) laser scanning technology

收稿日期: 2013-08-13

引用本文:

游志诚1，王亮清1，杨艳霞2，石长柏3. 基于三维激光扫描技术的结构面抗剪强度参数各向异性研究[J]. 岩石力学与工程学报, 2014, 33(sl): 3003-3008.
YOU Zhicheng1，WANG Liangqing1，YANG Yanxia2，SHI Changbai3. ANISOTROPIC RESEARCH ON SHEAR STRENGTH PARAMETERS OF DISCONTINUITY BASED ON THREE-DIMENSIONAL LASER SCANNING TECHNOLOGY. , 2014, 33(sl): 3003-3008.

链接本文:

http://www.rockmech.org/CN/Y2014/V33/Isl/3003

[3]	李久林，唐辉明. 结构面粗糙度和抗剪强度的各向异性效应[J]. 工程勘察，1994，(5)：12-16.(LI Jiulin，TANG Huiming. The anisotropy effects of discontinuity roughness and shear strength[J]. Geotechnical Investigation and Surveying，1994，(5)：12-16.(in Chinese)) " target="_blank">
[6]	张林洪. 结构面抗剪强度的一种确定方法[J]. 岩石力学与工程学报，2001，20(1)：114-117.(ZHANG Linhong. A determination method of joint shear strength[J]. Chinese Journal of Rock Mechanics and Engineering，2001，20(1)：114-117.(in Chinese))
[8]	TSE R，CRUDEN D M. Estimating joint roughness coefficients[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1979，16(5)：303-307. " target="_blank">
[17]	中华人民共和国行业标准编写组. DLJ 204—1981水利水电工程岩石试验规程[S]. 北京：水利水电出版社，1985：80-85.(The Professional Standards Compilation Group of People′s Republic of China. DLJ 204—1981 Specification of rock tests for the hydraulic and hydroelectric power engineering[S]. Beijing：Water Power Press，1985：80-85.(in Chinese)) " target="_blank">
[21]	刘明维，何沛田，钱志雄，等. 岩体结构面抗剪强度参数试验研究[J]. 重庆建筑，2005，(6)：42-46.(LIU Mingwei，HE Peitian，QIAN Zhixiong，et al. Experimental study on the shear strength of rock discontinuities[J]. Chongqing Architecture，2005，(6)：42-46. (in Chinese)) " target="_blank">
[23]	金毅，潘懋，姚凌青，等. 一种稳健变差函数计算方法[J]. 北京大学学报：自然科学版，2009，45(6)：1 033-1 038.(JIN Yi，PAN Mao，YAO Lingqing，et al. On a robust variogram estimator[J]. Acta Scientiarum Naturalium Universitatis Pekinensis，2009，45(6)：1 033-1 038.(in Chinese)) " target="_blank">
[26]	谢和平，PARISEAU W G. 岩石节理粗糙系数(JRC)的分形估计[J]. 中国科学：B辑，1994，(5)：524-530.(XIE Heping，PARISEAU W G. Fractal estimating of the rock joint roughness coefficient[J]. Science in China：Series B，1994，(5)：524-530.(in Chinese)) " target="_blank">
[9]	BURTON N. Modelling rock joint behavior from in-suit block test：implication for nuclear waste repository design[R]. ONWI-308. Columbus，OH，1982：381-385. " target="_blank">
[12]	BAMFORD W E，DEERE D U，FRANKLIN J A，et al. Suggested methods for the quantitative description of discontinuities in rock masses[J]. International Journal of Rock Mechanics and Mining Sciences，1978，15：319-368. " target="_blank">
[18]	刘明维，傅华，吴进良. 岩体结构面抗剪强度参数确定方法的现状及思考[J]. 重庆交通学院学报，2005，24(5)：65-67.(LIU Mingwei，FU Hua，WU Jinliang. Recent development and thinking on determination method of the rock mass discontinuity shear strength parameters[J]. Journal of Chongqing Jiaotong University，2005，24(5)：65-67.(in Chinese)) " target="_blank">
[1]	DU Shigui. Research on complexity of surface undulating shapes of rock joints[J]. Journal of China University of Geosciences，1998，9(1)：86-89. " target="_blank">
[2]	杜时贵，唐辉明. 岩体断裂粗糙度系数的各向异性研究[J]. 工程地质学报，1993，(8)：70-77.(DU Shigui，TANG Huiming. A study on the anisotropy of joint roughness coefficient in rock mass[J]. Journal of Engineering Geology，1993，(8)：70-77.(in Chinese)) " target="_blank">
[4]	国际岩石力学学会试验方法委员会. 岩石力学试验建议方法(上)[M]. 北京：煤炭工业出版社，1982：5-10.(ISRM Testing Method Committee. The proposition method of test for the rock mass (Vol. 1)[M]. Beijing：China Coal Industry Publishing House，1982：5-10.(in Chinese)) " target="_blank">
[5]	BARTON N R. Review of a new shear strength criterion for rock joints. Engineering Geology，1973，7(4)：287-332. " target="_blank">
[7]	XIE H. Fractals in rock mechanics as geomechanics research series[M]. Rotterdam：A.A. Balkema，1993：18-20. " target="_blank">
[22]	金涛，童水光. 逆向工程技术[M]. 北京：机械工业出版社，2003：12-13.(JIN Tao，TONG Shuiguang. Reverse engineering technology[M]. Beijing：China Machine Press，2003：12-13.(in Chinese)) " target="_blank">
[10]	王歧. 用伸长率R确定岩石节理粗糙度系数的研究[C]// 地下工程经验交流会论文选集. 北京：地质出版社，1986：343-348. (WANG Qi. Research about the determination of the rock joint roughness coefficient based on elongation R[C]// Proceedings of Underground Engineering Experience-sharing Sessions. Beijing：Geological Publishing House，1986：343-348.(in Chinese)) " target="_blank">
[11]	杜时贵，郭霄. 岩体结构面粗糙度系数JRC的研究现状[J]. 水文地质工程地质，2003，(增1)：30-33.(DU Shigui，GUO Xiao. Recent development of the joint roughness coefficient(JRC)[J]. Hydrogeology and Engineering Geology，2003，(Supp.1)：30-33.(in Chinese)) " target="_blank">
[13]	王建锋. 岩体结构面粗糙度JRC研究进展[J]. 地质科技情报，1991，10(2)：73-78.(WANG Jianfeng. Development of the joint roughness coefficient(JRC)[J]. Geological Science and Technology Information，1991，10(2)：73-78.(in Chinese)) " target="_blank">
[14]	MANDELBROT B B. The fractal geometry of nature[M]. New York：W. H. Freeman and Company，1982：16-32. " target="_blank">
[15]	孙博玲. 分形维数(Fractal dimension)及其测量方法[J]. 东北林业大学学报，2004，32(3)：116-119.(SUN Boling. Fractal dimension and its metrical methods[J]. Journal of Northeast Forestry University，2004，32(3)：116-119.(in Chinese)) " target="_blank">
[16]	聂笃宪，曾文曲，文有为. 分形维数计算方法的研究[J]. 微机发展，2004，14(9)：17-19.(NIE Duxian，ZENG Wenqu，WEN Youwei. Fractal dimension study of calculating method[J]. Microcomputer Development，2004，14(9)：17-19.(in Chinese)) " target="_blank">
[19]	刘佑荣，唐辉明. 岩体力学[M]. 武汉：中国地质大学出版社，1999：85-89.(LIU Yourong，TANG Huiming. Rock mass mechanics[M]. Wuhan：China University of Geosciences Press，1999：85-89.(in Chinese)) " target="_blank">
[20]	杜时贵. 岩体结构面抗剪强度有效长度确定方法[R]. 金华：金华职业技术学院，2004.(DU Shigui. Determination method of effective length for the rock mass discontinuity shear strength[R]. Jinhua：Jinhua Polytechnic，2004.(in Chinese)) " target="_blank">
[25]	BARTON N，BANDIS S. Review of predictive capabilities of JRC-JCS model in engineering practice[C]// Proceedings of the International Conference on Rock Joints. Leon：[s. n.]，1990：603-610. " target="_blank">
[24]	BARTON N，CHOUBEY V. The shear strength of rock joints in theory and practice[J]. Rock Mechanics，1977，10：1-54. " target="_blank">