Experiments on fluid flow and solute transport in the fracture network pipe model

doi:10.7523/j.issn.2095-6134.2014.01.009

Abstract

Abstract:

It is important to understand groundwater flow and solute transport in fractured rocks for establishing appropriate groundwater protection policies and implementing effectively protection measures. Based on the discrete fracture network model and fracture network pipe flow model, a representative physical model was built and a set of the laboratory experiments were carried out in order to investigate the correlations of flow discharge and solute transport mass with fracture geometry parameters. On the basis of the correlation analyses and regression analyses, we obtained the corresponding regression trends and statistical relationships.

Key words: fracture, pipe network, physical model, simulation experiment, flow and solute transport

CLC Number:

X523
P641

TENG Qiang, WANG Mingyu, WANG Huifang. Experiments on fluid flow and solute transport in the fracture network pipe model[J]. , 2014, 31(1): 54-60.

References

[1] Wang M Y. Investigation of effective prevention and remediation of groundwater contamination in China[J]. Bulletin of Chinese Academy of Sciences, 2012(4):462-468(in Chinese). 王明玉. 中国地下水污染有效防控探析[J]. 中国科学院院刊, 2012(4):462-468.

[2] 王洪涛. 多孔介质污染物迁移动力学[M]. 北京: 高等教育出版社, 2008.

[3] Qian J Z, Yang L H, Li R Z, et al. Advances in laboratory study of groundwater f low in fractures system[J]. Journal of Hefei University of Technology:Natural Science, 2003(4): 510-513(in Chinese). 钱家忠, 杨立华, 李如忠, 等. 基岩裂隙系统中地下水运动物理模拟研究进展[J]. 合肥工业大学学报:自然科学版, 2003(4):510-513.

[4] 周志芳, 等. 裂隙介质水动力学原理[M]. 北京:高等教育出版社, 2007.

[5] Zhang C H. Seepape-stress coupled model of heterogeneous and random fractured rock mass[J]. Journal of China Coal Society, 2009(11): 1460-1464(in Chinese). 张春会. 非均匀、随机裂隙展布岩体渗流应力耦合模型[J]. 煤炭学报, 2009(11):1460-1464.

[6] 覃华. 单裂隙沟槽流模型水流与溶质运移基本规律试验研究[D]. 合肥:合肥工业大学, 2007.

[7] Trivedi J J, Babadagli T. Experimental and numerical modeling of the mass transfer between rock matrix and fracture[J]. Chemical Engineering Journal, 2009, 146(2): 194-204.

[8] Chen Z, Qian J, Luo S, et al. Experimental study of friction factor for groundwater flow in a single rough fracture[J]. Journal of Hydrodynamics, Ser B, 2009, 21(6): 820-825.

[9] 李亚帮. 膨胀性充填裂隙水力特性实验研究[D]. 郑州:郑州大学, 2010.

[10] Tang L, Zhang H, Sprenger S, et al. Fracture mechanisms of epoxy-based ternary composites filled with rigid-soft particles[J]. Composites Science and Technology, 2012, 72(5): 558-565.

[11] Wang H L. Review on the numerical simulation of seepage of bedrock fissure water[J]. World Nuclear Geoscience, 2012(2):85-91(in Chinese). 王海龙. 基岩裂隙水渗流数值模拟研究综述[J]. 世界核地质科学, 2012(2):85-91.

[12] Wang P, Yu J, Zhang Y, et al. Groundwater recharge and hydrogeochemical evolution in the Ejina Basin, northwest China[J]. Journal of Hydrology, 2013: 72-86.

[13] Leung C, Zimmerman R. Estimating the hydraulic conductivity of two-dimensional fracture networks using network geometric properties[J]. Transport in Porous Media, 2012, 93(3): 777.

[14] Schwartz M. Modelling radionuclide transport in large fractured-media systems: the example of Forsmark, Sweden[J]. Hydrogeology Journal, 2012, 20(4): 673.

[15] Tsang Y.Channel model of flow through fractured media[J]. Water Resources Research, 1997, 23(3): 486-493.

[16] Cacus M C, Ledoux E, Marsily G D, et al. Modeling of fracture ow with astochastic discrete fracture network: calibration and validation-1, the ow model[J]. Water Resources Research, 1990, 26(3):479-489.

[17] Ubertosi F, Delay F, Bodin J, et al. A new method for generating a pipe network to handle channelled flow in fractured rocks[J]. Comptes Rendus Geoscience, 2007, 339(10): 682-691.

[18] Wang M Y, Kulatilake P, Um J. Estimation of REV size and three dimensional hydraulic conductivity tensor for a rock mass through discrete fracture fluid flow modeling[J]. Rock Mechanics in the National Interest, 2001(1/2): 713-720.

[19] Liu H M, Wang M Y, Song X F. Stepwise approach for identifying pairwise fracture intersections in 3D fracture networks[J]. Journal of Graduate University of Chinese Academy of Sciences, 2013, 30(1): 24-32.

[20] Liu H M, Wang M Y. Algorithms and their optimization for identification of the connected flow paths for 3D fracture networks in fractured rocks[J]. Journal of Graduate School of Chinese Academy of Sciences, 2010, 27(4):463-470(in Chinese). 刘华梅, 王明玉. 三维裂隙网络渗流路径识别算法及其优化[J]. 中国科学院研究生院学报, 2010, 27(4):463-470.

[21] Wang M Y, Chen J S, Wan L. Groundwater (fluid) flow modeling in fractured rocks via discrete fracture fluid flow approach[J]. Earth Science(Journal of China University of Geosciences), 2002(1):90-96(in Chinese). 王明玉, 陈劲松, 万力. 离散裂隙渗流方法与裂隙化渗透介质建模[J]. 地球科学(中国地质大学学报), 2002(1):90-96.