三轴压应力–化学溶液渗透作用下单裂隙花岗岩裂隙开度演化

摘要
图/表
参考文献
相关文章 (1)

全文: PDF (395 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要为研究单裂隙花岗岩在应力–化学溶液渗透条件下的开度演化规律，开展单裂隙花岗岩在恒定三轴压应力及化学溶液渗透作用下的试验。对试验过程中渗透溶液离子浓度进行分析，结果表明，压应力作用下，裂隙接触面矿物溶解、自由面矿物溶解以及矿物沉淀3个过程影响裂隙开度的演化规律。通过裂隙面三维扫描数据获取裂隙开度变化与接触面积率的关系，并基于此在已有研究基础上分别建立酸性溶液和碱性溶液渗透作用下花岗岩裂隙开度演化模型。模拟结果表明，模型计算结果与试验结果符合较好，能够很好地描述裂隙在化学溶液渗透和应力作用下的演化规律；酸性溶液渗透作用下，接触面矿物溶解过程的强弱控制着裂隙开度的演化，而碱性溶液渗透作用下，矿物的沉淀过程也发挥着重要作用。

	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；裂隙开度；压应力&ndash, 化学&ndash, 渗透耦合过程；裂隙形貌；化学溶解；沉淀；单裂隙岩石

Abstract：To study the aperture evolution of single fracture in granite under stresses and chemical solution seepage，seepage tests using different chemical solutions were carried out on granite with a single fracture under constant triaxial compressive stress. Ion concentrations of solutions were measured during the seepage tests. Analysis results show that under compression，three processes have effects on the evolution of fracture aperture，i.e. mineral dissolution at fracture contact area，mineral dissolution on free surface and mineral precipitation. The relationship between aperture evolution and contact area ratio was obtained using the 3D scanning data of fracture surface. Based on this，the aperture evolution model of granite with a single fracture under both acid and alkaline solutions seepage was established. Simulation results show good accordance with testing results. The established model can well describe the fracture aperture evolution under chemical solution seepage and stress. It shows that under acid solution seepage，the process of mineral dissolution at fracture contact area dominates aperture evolution；while under alkaline solution，the mineral precipitation also plays an important role.

Key words： rock mechanics fracture aperture compressive stress-chemistry-seepage coupling process fracture topography chemical dissolution precipitation rock with a single fracture

收稿日期: 2012-03-08

引用本文:

杨金保，冯夏庭，潘鹏志，申林方. 三轴压应力–化学溶液渗透作用下单裂隙花岗岩裂隙开度演化[J]. 岩石力学与工程学报, 2012, 31(9): 1869-1878.
YANG Jinbao，FENG Xiating，PAN Pengzhi，SHEN Linfang. APERTURE EVOLUTION OF SINGLE FRACTURE IN GRANITE UNDER TRIAXIAL COMPRESSIVE STRESS AND CHEMICAL SOLUTION SEEPAGE. , 2012, 31(9): 1869-1878.

链接本文:

http://www.rockmech.org/CN/Y2012/V31/I9/1869

[15]	申林方，冯夏庭，潘鹏志，等. 应力作用下岩石的化学动力学溶解机制研究[J]. 岩土力学，2011，32(5)：1 320-1 326.(SHEN Linfang，FENG Xiating，PAN Pengzhi，et al. Chemical kinetics dissolution mechanism of rock under stress[J]. Rock and Soil Mechanics，2011，32(5)：1 320-1 326.(in Chinese))
[18]	SINGURINDY O，BERKOWITZ B，LOWELL R P. Carbonate dissolution and precipitation in coastal environments：laboratory analysis and theoretical consideration[J]. Water Resources Research，2004，40(W4401)，doi：10.1029/2003WR002651. " target="_blank">
[29]	YANG J B，FENG X T，SHEN L F，et al. Experimental research on aperture evolution of single granite fracture under stress-chemical solution permeation condition[C]// Rock Mechanics：Achievements and Ambitions. London：Taylor and Francis Group，2011：221-227. " target="_blank">
[31]	GENTIER S，RISS J，ARCHAMBAULT G，et al. Influence of fracture geometry on shear behavior[J]. International Journal of Rock Mechanics and Mining Sciences，2000，37(1/2)：161-174. " target="_blank">
[1]	汤连生，王思敬. 岩石水化学损伤的机制及量化方法探讨[J]. 岩石力学与工程学报，2002，21(3)：314-319.(TANG Liansheng，WANG Sijing. Analysis of mechanical and quantitative methods of chemical damage in water-rock interaction[J]. Chinese Journal of Rock Mechanics and Engineering，2002，21(3)：314-319.(in Chinese))
[3]	FENG X T，CHEN S L，LI S J. Effects of water chemistry on micro- cracking and compressive strength of granite[J]. International Journal of Rock Mechanics and Mining Sciences，2001，38(4)：557-568. " target="_blank">
[5]	周翠英，彭泽英，尚伟，等. 论岩土工程中水-岩相互作用研究的焦点问题——特殊软岩的力学变异性[J]. 岩土力学，2002，23(1)：124-128.(ZHOU Cuiying，PENG Zeying，SHANG Wei，et a1. On the key problem of the water-rock interaction in geoengineering：mechanical variability of special weak rocks and some development trends[J]. Rock and Soil Mechanics，2002，23(1)：124-128.(in Chinese)) " target="_blank">
[6]	霍润科，李宁，刘汉东. 均质砂岩酸腐蚀的力学性质分析[J]. 西北农林科技大学学报：自然科学版，2005，33(8)：149-152.(HUO Runke，LI Ning，LIU Huadong. Mechanical properties of homogenous sandstone subjected to hydrochloric acid attack[J]. Journal of Northwest Agriculture and Forest University：Natural Science，2005，33(8)：149-152.(in Chinese))
[7]	霍润科，李宁，刘汉东. 受酸腐蚀砂岩的统计本构模型[J]. 岩石力学与工程学报，2005，24(11)：1 852-1 856.(HUO Runke，LI Ning，LIU Handong. Statistical constitutive model of sandstone subjected to hydrochloric acid attack[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(11)：l 852-1 856.(in Chinese))
[9]	刘泽佳，李锡夔，武文华. 多孔介质中化学-热-水力-力学耦合过程本构模型和数值模拟[J]. 岩土工程学报，2004，26(6)：797-803.(LIU Zejia，LI Xikui，WU Wenhua. A constitutive model and numerical simulation for coupled chemo-thermo-hydro-mechanical process in porous media[J]. Chinese Journal of Geotechnical Engineering，2004，26(6)：797-803.(in Chinese))
[10]	谭卓英，刘文静，闭历平，等. 岩石强度损伤及其环境效应实验模拟研究[J]. 中国矿业，2001，10(4)：50-53.(TAN Zhuoying，LIU Wenjing，BI Liping，et al. Experimental simulation of rock strength damage and its environmental effect[J]. China Mining Magazine，2001，10(4)：50-53.(in Chinese))
[12]	周辉，汤艳春，胡大伟，等. 盐岩裂隙渗流-溶解耦合模型及试验研究[J]. 岩石力学与工程学报，2006，25(5)：946-950.(ZHOU Hui，TANG Yanchun，HU Dawei，et al. Study on coupled penetrating- dissolving model and experiment for salt rock cracks[J]. Chinese Journal of Rock Mechanics and Engineering，2006，25(5)：946-950. (in Chinese))
[2]	汤连生，张鹏程，王思敬. 水-岩化学作用之岩石断裂力学效应的试验研究[J]. 岩石力学与工程学报，2002，21(6)：822-827.(TANG Liansheng，ZHANG Pengcheng，WANG Sijing. Testing study on effect of chemical action of aqueous solution on crack propagation in rock[J]. Chinese Journal of Rock Mechanics and Engineering，2002，2l(6)：822-827.(in Chinese))
[4]	FENG X T，LI S J，CHEN S L. Effect of water chemical corrosion on strength and cracking characteristics of rocks—a review[J]. Key Engineering Materials，2004，261/262/263：1 355-1 360. " target="_blank">
[13]	郭永海，王驹，吕川河，等. 高放废物处置库甘肃北山野马泉预选区地下水化学特征及水-岩作用模拟[J]. 地学前缘，2005，12(增)：117-123.(GUO Yonghai，WANG Ju，LU Chuanhe，et a1. Chemical characteristics of groundwater and water-rock interaction：modeling of the Yemaquan preselected area for China?s high level radioactive waste repository[J]. Earth Science Frontiers，2005，12(Supp.)：117-123.(in Chinese))
[16]	SINGURINDY O，BERKOWITZ B. The role of fractures on coupled dissolution and precipitation patterns in carbonate rocks[J]. Advances in Water Resources，2005，28(5)：507-521.
[20]	POLAK A，ELSWORTH D，YASUHARA H，et al. Permeability reduction of a natural fracture under net dissolution by hydrothermal fluids[J]. Geophysical Research Letters，2003，30(20)：1.1-1.4. " target="_blank">
[8]	李宁，朱运明，张平，等. 酸性环境中钙质胶结砂岩的化学损伤模型[J]. 岩土工程学报，2003，25(4)：395-399.(LI Ning，ZHU Yunming，ZHANG Ping，et al. A chemical damage model of sandstone in acid environment[J]. Chinese Journal of Geotechnical Engineering，2003，25(4)：395-399.(in Chinese))
[14]	申林方，冯夏庭，潘鹏志，等. 单裂隙花岗岩在应力-渗流-化学耦合作用下的试验研究[J]. 岩石力学与工程学报，2010，29(7)：1 379-1 388.(SHEN Linfang，FENG Xiating，PAN Pengzhi，et al. Experimental research on mechano-hydro-chemical coupling of granite with single fracture[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(7)：1 379-1 388.(in Chinese))
[17]	SINGURINDY O，BERKOWITZ B. Evolution of hydraulic conductivity by precipitation and dissolution in carbonate rock[J]. Water Resources Research，2003，39(1)：1 016-1 029. " target="_blank">
[19]	POLAK A，ELSWORTH D，LIU J，et al. Spontaneous switching of permeability changes in a limestone fracture with net dissolution[J]. Water Resources Research，2004，40(W03502)，doi：10.1029/2003WR 002717. " target="_blank">
[21]	TENTHOREY E，COX S F，TODD H F. Evolution of strength recovery and permeability during fluid-rock reaction in experimental fault zones[J]. Earth and Planetary Science Letters，2003，206(1/2)：161-172. " target="_blank">
[22]	MOORE D E，LOCKNER D A，BYERLEE J D. Reduction of permea- bility in granite at elevated temperatures[J]. Science，1994，265(5 178)：1 558-1 561. " target="_blank">
[23]	LIU X，ORMOND A，BARTKO K，et al. A geochemical reaction- transport simulator for matrix acidizing analysis and design[J]. Journal of Petroleum Science and Engineering，1997，17(1/2)：181-196. " target="_blank">
[24]	DIJK P E，BERKOWITZ B. Buoyancy-driven dissolution enhancement in rock fractures[J]. Geology，2000，28(11)：1 051-1 054. " target="_blank">
[25]	DIJK P E，BERKOWITZ B，YECHIELI Y. Measurement and analysis of dissolution patterns in rock fractures[J]. Water Resources Research，2002，38(2)：5.1-5.12. " target="_blank">
[27]	YASUHARA H，ELSWORTH D，POLAK A. Evolution of permeability in a natural fracture：significant role of pressure solution[J]. Journal of Geophysical Research—Solid Earth，2004，109(B03204)：1 029-1 038. " target="_blank">
[11]	崔强，冯夏庭，薛强，等. 化学腐蚀下砂岩孔隙结构变化的机制研究[J]. 岩石力学与工程学报，2008，27(6)：1 209-1 216.(CUI Qiang，FENG Xiating，XUE Qiang，et al. Mechanism study of porosity structure change of sandstone under chemical corrosion[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(6)：1 209-1 216.(in Chinese))
[26]	YASUHARA H，ELSWORTH D. Compaction of a rock fracture moderated by competing roles of stress corrosion and pressure solution[J]. Pure and Applied Geophysics，2008，165(7)：1 289- 1 306. " target="_blank">
[30]	LASAGA A C. Chemical kinetics of water-rock interactions[J]. Journal of Geophysical Research，1984，89(B6)：4 009-4 025. " target="_blank">
[28]	YASUHARA H，POLAK A，MITANI Y，et al. Evolution of fracture permeability through fluid-rock reaction under hydrothermal conditions[J]. Earth and Planetary Science Letters，2006，244(1/2)：186-200. " target="_blank">
[32]	RE F，SCAVIA C. Determination of contact areas in rock joints by X-ray computer tomography[J]. International journal of rock Mechanics and Mining Sciences，1999，36(7)：883-890. " target="_blank">
[33]	STESKY R M，HANNAN S S. Growth of contact area between rough surfaces under normal stress[J]. Geophysical Research Letters，1987，14(5)：550-553. " target="_blank">