Abstract：In order to investigate the influence of different roughness and filling gap width on the seepage characteristics of rough single fracture of limestone. Combined with three-dimensional scanning and engraving technologies，samples of limestone fractures with different joint roughness coefficient(JRC) and undulation( ) were prepared. Seepage characteristics experiments of rough single fracture of limestone under triaxial stress condition were conducted to study the influence of different JRC and filling gap width( ) on fracture seepage flow，equivalent hydraulic aperture and permeability. The results show that under different JRC and Be conditions，the evolution process of seepage flow，equivalent hydraulic aperture and permeability of fractures with seepage time has three stages: rapid decline，slow decline and stabilization. With the increase of JRC or decrease of ，all seepage parameters gradually decrease. The seepage flow and permeability of fracture has quadratic function and logarithmic function relationship with JRC respectively，and the minimum value of square root( ) is 0.985 5. There is a quadratic function between steady seepage flow and ，and the minimum value of is 0.974 5. The equivalent hydraulic gap width of the fractures with different filling gap width decreases with the increase of seepage time. According to the quantitative relationship between the initial seepage flow and various parameters，the seepage behaviour of the fracture after stabilization can be predicted.
甘 磊，金洪杰，沈振中，马洪影，徐力群. 不同粗糙度和充填隙宽下石灰岩裂隙渗流特性试验研究[J]. 岩石力学与工程学报, 2023, 42(S1): 3415-3424.
GAN Lei，JIN Hongjie，SHEN Zhenzhong，MA Hongying，XU Liqun. Experimental investigation on seepage characteristics of limestone fractures with different roughness and filling gap width#br#. , 2023, 42(S1): 3415-3424.
[1] 黄 娜，蒋宇静，程远方，等. 基于3D打印技术的复杂三维粗糙裂隙网络渗流特性试验及数值模拟研究[J]. 岩土力学，2021，42(6)：1 659–1 668.(HUANG Na，JIANG Yujing，CHENG Yuanfang，et al. Experimental and numerical study of hydraulic properties of three-dimensional rough fracture networks based on 3D printing technology[J]. Rock and Soil Mechanics，2021，42(6)：1 659–1 668.(in Chinese))
[2] ZHAO Z，RUTQVIST J，LEUNG C，et al. Impact of stress on solute transport in a fracture network：a comparison study[J]. Journal of Rock Mechanics and Geotechnical Engineering，2013，5(2)：110–123.
[3] 郭保华，程 坦，陈 岩，等. 大理岩裂隙渗流特性及充填砂土影响[J]. 水利学报，2019，50(4)：463–474.(GUO Baohua，CHENG Tan，CHEN Yan，et al. Seepage characteristic of marble fracture and effect of filling sands[J]. Journal of Hydraulic Engineering，2019，50(4)：463–474.(in Chinese))
[4] 杨秀荣，姜谙男，张峰瑞，等. 破裂石灰岩在渗透压–应力耦合作用下渗流特性研究[J]. 煤炭学报，2019，44(增1)：101–109. (YANG Xiurong，JIANG Annan，ZHANG Fengrui，et al. Seepage characteristics of fractured limestone under osmotic pressure-stress coupling[J]. Journal of China Coal Society，2019，44(Supp.1)：101–109.(in Chinese))
[5] SNOW D T. Anisotropic permeability of fractured media[J]. Water Resources Research，1969，5(6)：1 273–1 289.
[6] 甘 磊，马洪影，沈振中. 下凹形态裂隙面粗糙程度表征及立方定律修正系数拟合[J]. 水利学报，2021，52(4)：420–431.(GAN Lei，MA Hongying，SHEN Zhenzhong. Roughness characterization of concave fracture surface and coefficient fitting of modified cubic law[J]. Journal of Hydraulic Engineering，2021，52(4)：420–431.(in Chinese))
[7] BARTON N，BANDIS S，BAKHTAR K. Strength deformation and conductivity coupling of rock joints[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1985，22(3)：121–140.
[8] ZIMMERMAN R W，KUMAR S，BODVARSSON G S. Lubrication theory analysis of the permeability of rough-walled fractures[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1991，28(4)：325–331.
[9] NIYA S M R，SELVADURAI A P S. Correlation of joint roughness coefficient and permeability of a fracture[J]. International Journal of Rock Mechanics and Mining Sciences，2019，133：150–162.
[10] 崔 溦，王利新，江志安，等. 基于修正立方定律的岩体粗糙裂隙网络注浆过程模拟研究[J]. 岩土力学，2021，42(8)：2 250–2 258. (CUI Wei，WANG Lixin，JIANG Zhian，et al. Numerical simulation of grouting process in rock mass with rough fracture network based on corrected cubic law[J]. Rock and Soil Mechanics，2021，42(8)：2 250–2 258.(in Chinese))
[11] GAN L，CHEN G Y，SHEN Z Z，et al. Modification method of seepage parameters for rough fractures based on digital image technique[J]. Journal of Petroleum Science and Engineering，2022，209.
[12] LI Y T，ZHANG Y B. Quantitative estimation of joint roughness coefficient using statistical parameters[J]. International Journal of Rock Mechanics and Mining Sciences，2015，77：27–35.
[13] 王明玉，刘庆哲，曲辞晓，等. 基于圆盘裂隙物理模型的岩体单一裂隙渗流规律试验研究[J]. 岩土力学，2020，41(11)：3 523–3 530. (WANG Mingyu，LIU Qingzhe，QU Cixiao，et al. Experimental investigation on the seepage flow through a single fracture in rocks based on the disc fracture model[J]. Rock and Soil Mechanics，2020，41(11)：3 523–3 530.(in Chinese))
[14] 王鹏飞，谭文辉，马学文，等. 不同粗糙度和隙宽贯通充填裂隙渗流特性试验研究[J]. 岩土力学，2019，40(8)：3 062–3 070.(WANG Pengfei，TAN Wenhui，MA Xuwen，et al. Experimental study of seepage characteristics of consecutive and filling fracture with different roughness levels and gap-widths[J]. Rock and Soil Mechanics，2019，40(8)：3 062–3 070.(in Chinese))
[15] 刘才华，陈从新. 三轴应力作用下岩石单裂隙的渗流特性[J]. 自然科学进展，2007，17(7)：989–994.(LIU Caihua，CHEN Congxin. Seepage characteristics of single fracture under triaxial stress[J]. Advances in Natural Science，2007，17(7)：989–994.(in Chinese))
[16] ZHAO Y，WANG C L，BI J. Permeability model of fractured rock with consideration of elastic‐plastic deformation[J]. Engry Science and Engineering，2019，8(2)：1–11.
[17] 刘 杰，于振民，王瑞红，等. 砂岩劈裂裂隙无充填多因素影响下渗流规律研究[J]. 水利学报，2016，47(1)：54–63.(LIU Jie，YU Zhenmin，WANG Ruihong，et al. Research on seepage law of splitting sandstone with non-fillers under multiple factors[J]. Journal of Hydraulic Engineering，2016，47(1)：54–63.(in Chinese))
[18] ZHAO X B，CHEN H H，CHI Y，et al. Seepage characteristics of triaxial compression-induced fractured rocks under varying confining pressures[J]. International Journal of Gemomechanics，2020，20(9)：1–11.
[19] 周 新，盛建龙，叶祖洋，等. 岩体粗糙裂隙几何特征对其Forchheimer型渗流特性的影响[J]. 岩土工程学报，2021，43(11)：2 075–2 083.(ZHOU Xin，SHENG Jianlong，YE Zuyang，et al. Effects of geometrical feature on Forchheimer-flow behavior through rough-walled rock fractures[J]. Chinese Journal of Geotechnical Engineering，2021，43(11)：2 075–2 083.(in Chinese))
[20] 马德宜，刘 杰，李建林，等. JRC、围压和轴压共同作用下砂岩裂隙面渗流特性的试验研究[J]. 自然灾害学报，2018，27(6)：109–119.(MA Deyi，LIU Jie，LI Jianlin，et al. Research on seepage characteristics of sandstone fracture under JRC，confining pressure and axial pressure[J]. Journal of Natural Disasters，2018，27(6)：109–119.(in Chinese))
[21] 盛金昌，李凤滨，姚德生，等. 渗流–应力–化学耦合作用下岩石裂隙渗透特性试验研究[J]. 岩石力学与工程学报，2012，31(5)： 1 016–1 025.(SHENG Jinchang，LI Fengbin，YAO Desheng，et al. Experimental study of seepage prorerties in rocks fracture under coupled hydro-mechano-chemical process[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(5)：1 016–1 025.(in Chinese))
[22] 贺玉龙，陶玉敬，杨立中. 不同节理粗糙度系数单裂隙渗流特性试验研究[J]. 岩石力学与工程学报，2010，29(增1)：3 235–3 240.(HE Yulong，TAO Yujing，YANG Lizhong. Experimental research on hydraulic behaviors in a single joint with various values of JRC[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(Supp.1)：3 235–3 240.(in Chinese))
[23] TSE R. Estimating joint roughness coefficients[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1979，16(5)：303–307.
[24] MAERZ N H，FRANKLIN J A，BE NNETT C P. Joint roughness measurement using shadow profilometry[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1990，27(5)：329–343.
[25] LEE Y H，CARR J R，BARR D J，et al. The fractal dimension as a measure of the roughness of rock discontinuity profiles[J]. International Journal of Rock Mechanics and Mining Science and Geomechanics Abstracts，1990，27(6)：453–464.
[26] 李 锐，肖维民. 基于Barton标准剖面线精细数字化处理的岩石节理JRC计算新公式研究[J]. 岩石力学与工程学报，2018，37(增1)：3 515–3 522.(LI Rui，XIAO Weimin. Study on a new equation for calculating JRC based on fine digitization of standard profiles proposed by Barton[J]. Chinese Journal of Rock Mechanics and Engineering，2018，37(Supp.1)：3 515–3 522.(in Chinese))
[27] 夏才初，唐志成，宋英龙. 基于三维形貌参数的偶合节理峰值抗剪强度公式[J]. 岩石力学与工程学报，2013，32(增1)：2 833–2 839. (XIA Chucai，TANG Zhicheng，SONG Yinglong. A new peak shear strength formula for matching irregular joints based on 3D morphplpgy parameters[J]. Chinese Journal of Rock Mechanics and Engineering，2013，32(Supp.1)：2 833–2 839.(in Chinese))
[28] 胡云进，杨申东，钟振，等. 灰岩单裂隙非饱和渗流–应力耦合特性试验研究[J]. 岩石力学与工程学报，2022，41(增1)：2 846–2 856. (HU Yunjin，YANG Shendong， ZHONG Zhen，et al. Experimental study on unsaturated flow properties through a single limestone fracture under confining pressure[J]. Chinese Journal of Rock Mechanics and Engineering，2022，41(Supp.1)：2 846–2 856.(in Chinese))
[29] 王 媛，速宝玉. 单裂隙面渗流特性及等效水力隙宽[J]. 水科学进展，2002，13(1)：61–68.(WANG Yuan，SUN Baoyu. Research on the behavior of fluid flow in a single fracture and its equivalent hydraulic aperture[J]. Advances in Water Science，2002，13(1)：61–68.(in Chinese))
[30] 刘 杰，李建林，王瑞红，等. 含密实原岩充填物的宜昌砂岩裂隙渗流试验研究[J]. 岩石力学与工程学报，2010，29(2)：366–374.(LIU Jie，LI Jianlin，WANG Ruihong，et al. Experimental study of seepage in yichang fractured sandstone with tight original rock fillings[J]. Chinese Journal of Rock Mechanics and Engineerin，2010，29(2)：366–374.(in Chinese))
[31] 王 珂，盛金昌，郜会彩，等. 应力–渗流侵蚀耦合作用下粗糙裂隙渗流特性研究[J]. 岩土力学，2020，41(增1)：30–40.(WANG Ke，SHENG Jinchang，GAO Huicai，et al. Study on seepage characteristics of rough crack under coupling of stress-seepage erosion[J]. Rock and Soil Mechanics，2020，41(Supp.1)：30–40.(in Chinese))
[32] SUN W B，XUE Y C，YIN L M，et al. Experimental study on seepage characteristics of large size rock specimens under three-dimensional stress[J]. Geomechanics and Engineering，2019，18(6)：567–574.
[33] FU H Y，JIANG H B，QIU X，et al. Seepage characteristics of a fractured silty mudstone under different confining pressures and temperatures[J]. Journal of Central South University，2020，27：1 907–1 916.
[34] 盛金昌，吴彦青，白柯含，等. 不同溶液渗透溶蚀作用下碳酸盐岩渗透特性研究[J]. 岩石力学与工程学报，2019，38(增2)：3 279–3 286.(SHENG Jinchang，WU Yanqing，BAI Kehan，et al. Study on the permeability evolution of carbonate rocks under seepage corrosion effect of different solutions[J]. Chinese Journal of Rock Mechanics and Engineering，2019，38(Supp.2)：3 279–3 286.(in Chinese))
2023, Vol. 42 
