注浆加固后岩体单一界面抗剪强度

doi:10.13722/j.cnki.jrme.2015.1445

摘要
图/表
参考文献(20)
相关文章 (15)

全文: PDF (2178 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要针对单一岩石界面的注浆加固强度问题，分析结构面剪切破坏机制以及黏结力与摩擦力的耦合效应，并开展规则锯齿状结构面剪切试验。对三维条件下结构面粗糙程度的各向异性及其表征方法进行分析。依据结构面微凸体倾角与剪切方向的关系，提出摩擦力主控区域与黏结力主控区域的划分。基于无黏结强度时结构面的抗剪强度准则，以及结构面黏结力作用机制，建立单一界面注浆加固体的抗剪强度计算公式，计算表明，注浆材料的黏结力作用受结构面粗糙度各向异性的影响显著。注浆加固后，结构面的抗剪强度沿各个方向均得到提升，但结构面的抗剪强度仍然存在明显的各向异性。研究结果为岩体注浆加固效果提供了评判依据。

	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
	郑卓
	李术才
	刘人太
	张世杰
	李夏
	王晓晨

关键词 ：岩石力学, 注浆加固, 结构面, 裂隙岩体, 抗剪强度

Abstract：To evaluate grouting reinforcement strength of single fracture surface，shearing failure mechanism of structural surface and coupling effect between cohesion force and friction force was analyzed. Shearing tests was conducted for regular saw-tooth structural surface. Anisotropy of surface roughness and its characterization methods was analyzed. According to the relationship between shearing direction and micro asperity of the structural surface，a conception of cohesion controlling area and friction controlling area was proposed. Based on failure criterion for non-cohesion structural surface and mechanism of cohesion force，a formula was established for shearing strength on one single surface of grouted rock. Calculation shows cohesion force is influenced by the asperity of surface roughness. Grouting reinforcement increases shearing strength of structural surface along all direction，while the asperity of shearing strength still exists. Research results may provide a method for evaluation on grouting reinforcement of fractured rock.

Key words： rock mechanics grouting reinforcement structural surface fractured rock shearing strength

引用本文:

郑卓，李术才，刘人太，张世杰，李夏，王晓晨. 注浆加固后岩体单一界面抗剪强度[J]. 岩石力学与工程学报, 2016, 35(S2): 3915-3922.
ZHENG Zhuo，LI Shucai，LIU Rentai，ZHANG Shijie，LI Xia，WANG Xiaochen. Shearing strength of single structural surface of grouted rock mass. , 2016, 35(S2): 3915-3922.

链接本文:

https://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2015.1445 或 https://rockmech.whrsm.ac.cn/CN/Y2016/V35/IS2/3915

[1]	张霄，李术才，张庆松，等. 矿井高压裂隙涌水综合治理方法的现场试验[J]. 煤炭学报. 2010，35(8)：1314-1318.(ZHANG Xiao，LI Shucai，ZHANG Qingsong，et al. Filed test of comprehensive treatment method for high pressure dynamic grouting[J]. Journal of China Coal Society，2010，35(8)：1314-1318.(in Chinese))
[2]	张庆松，韩伟伟，李术才，等. 灰岩角砾岩破碎带涌水综合注浆治理[J]. 岩石力学与工程学报，2012，31(12)：2412-2419.(ZHANG Qingsong，HAN Weiwei，LI Shucai，et al. Comprehensive grouting treatment for water gushing analysis in limestone breccias fracture zone[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(12)：2412-2419.(in Chinese)).
[3]	阮文军. 基于浆液粘度时变性的岩体裂隙注浆扩散模型[J]. 岩石力学与工程学报，2005，24(15)：2709-2714.(RUAN Wenjun. Spreading model of grouting in rock mass fissures based on time-dependent behavior of viscosity of cement-based grouts[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(15)：2709-2714.(in Chinese))
[4]	李术才，刘人太，张庆松，等. 基于黏度时变性的水泥-玻璃浆液扩散机制研究[J]. 岩石力学与工程学报，2013，32(12)：2415- 2421.(LI Shucai，LIU Rentai，ZHANG Qingsong，et al. Research on C-S slurry diffusion mechanism with time-dependent behavior of viscosity[J].Chinese Journal of Rock Mechanics and Engineering，2013，32(12)：2415-2421.(in Chinese))
[5]	阮文军. 注浆扩散与浆液若干基本性能研究[J]. 岩土工程学报，2005，27(1)：69-73.(RUAN Wenjun. Research on diffusion of grouting and basic properties of grouts[J]. Chinese Journal of Geotechnical Engineering，2005，27(1)：69-73.(in Chinese))
[6]	杨志全，侯克鹏，郭婷婷，等. 黏度时变性宾汉体浆液的柱-半球形渗透注浆机制研究[J]. 岩土力学，2011，32(9)：2697-2703.(YANG Zhiquan，HOU Kepeng，GUO Tingting，et al. Study of column-hemispherical penetration grouting mechanism based on Bingham fluid of time-dependent behavior of viscosity[J]. Rock and Soil Mechanics，2011，32(9)：2697-2703.(in Chinese))
[7]	张霄.地下工程动水注浆过程中浆液扩散与封堵机理研究及应用[博士学位论文][D].济南：山东大学，2011.(ZHANG Xiao. Study on mechanism of slurry diffusion and sealing at the process of underground engineering moving water grouting and its application[Ph. D. Thesis][D]. Ji¢nan：Shandong University，2011.(in Chinese))
[8]	刘人太. 水泥基速凝浆液地下工程动水注浆扩散封堵机理及应用研究[博士学位论文][D]. 济南：山东大学，2012.(LIU Rentai. Study on diffusion and plugging mechanism of quick setting cement based slurry in underground dynamic water grouting and its application[Ph. D. Thesis][D]. Jinan：Shandong University，2012.(in Chinese))
[9]	PATTONFD.Multiplemodesofshearfailureinrock[C]// Proceedingsofthe1st International CongressofRock Mechanics. Lisbon，Portugal：International Society of Rock Mechanics，1966：509-513.
[10]	LADANYIB，ARCHAMBAULT G.Simulationoftheshearbehaviorofajointedrock mass[C]// Proceedingsofthe11thUSSymposiumon Rock Mechanics. Berkeley：The University of California，1970：105-125.
[11]	BARTON N，CHOUBEYV.Theshearstrengthofrockjointsintheoryandpractice[J].Rock Mechanics and Rock Engineering，1977，10：1-54.
[12]	BANDIS S，LUMSDEN AC，BARTONNR.Experimentalstudiesofscaleeffectsonthe shear behaviorofrockjoints[J].International Journal of Rock Mechanics andMining Sciences andGeomechanics Abstracts，1981，18(1)：1-21.
[13]	GRASSELLI G.Shearstrengthofrockjointsbasedonquantified surfacedescription[Ph. D. Thesis][D].Lausanne：École Polytechnique Fédérale De Lausanne Epfl，2001.
[14]	TATONE B，GRASSELLI G. A method to evaluate the three-dimensional roughness of fracture surfacesin brittle geomaterials[J]. Review of Scientific Instruments，2009，80(12)：125110-1-125110-11
[15]	BELEM T，HOMANA-ETIENNE F，SOULEY M. Quantitative parameters for rock joint surface roughness[J]. Rock Mechanics and Rock Engineering，2000，33(4)：217-242.
[16]	YANG ZY，CHIANG DY. An experimental study on the progressive shear behavior of rock joints with tooth-shaped asperities[J]. International Journal of Rock Mechanics andMining Sciences andGeomechanics Abstracts，2000，37(8)：1247-1259
[17]	YANG ZY，LO SC，DI CC.Reassessing the joint roughness coefficient(JRC) estimation using Z2[J]. Rock Mechanics and Rock Engineering，2001，34(3)：243-251.
[18]	PARK JW，SONG JJ. Numerical method for the determination of contact areas of a rock joint under normal and shear loads[J]. International Journal of Rock Mechanics andMining Sciences andGeomechanics，2013，58(7)：8-22.
[19]	GRASSELLI G，WIRTH J，EGGER P. Quantitative three-dimensionaldescription of a rough surface and parameter evolution withshearing[J]. International Journal of Rock Mechanics andMining Sciences andGeomechanics，2002，39(6)：789-800.
[20]	GRASSELLI G，EGGER P. Constitutive law for the shear strength ofrock joints based on three-dimensional surface parameters[J]. International Journal of Rock Mechanics andMining Sciences andGeomechanics，3003，40(1)：25-40.