充填岩石节理法向闭合变形特性试验研究

doi:10.13722/j.cnki.jrme.2023.0676

Abstract
Figure/Table
References (0)
Related Citation (15)

Download: PDF (1917 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract The normal closure of rock joint is one of the key factors affecting the mechanical and seepage behaviours of rock masses，and sand particles or other gouges are often filled in natural rock joint to form an infilled rock joint. However，there are abundant researches on the normal closure deformation of clean rock joints，while few researches on the normal closure of infilled rock joints have been reported. In this study，artificial rock joints with the morphology of the 5th and 8th Barton?s standard profiles were prepared by using rock-like materials，and quartz sand was chosen as the filling material to prepare artificial sand-infilled rock joint specimens with nine filling degrees. Then laboratory normal closure tests were conducted on these artificial sand-infilled rock joint specimens and their normal closure curves were obtained. According to the experimental results，the influences of infilled material on the normal closure of sand-infilled rock joints were analysed，and the power function was used to fit the normal closure curve and the maximum normal closure of sand-infilled rock joints with different filling degrees，thus establishing the empirical normal closure model and the empirical maximum normal closure formula of the infilled rock joint，respectively.

Key words： rock mechanics infilled rock joint normal closure deformation filling degree

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	XIAO Weimin1
	2
	ZHU Bin1
	2
	LIU Weichao1
	2
	ZHU Zhanyuan3

Cite this article:

XIAO Weimin1,2,ZHU Bin1, et al. Experimental research on the normal closure deformation of infilled rock joints[J]. , 2024, 43(S2): 3832-3840.

URL:

https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2023.0676 OR https://rockmech.whrsm.ac.cn/EN/Y2024/V43/IS2/3832

[1]	夏才初，孙宗颀. 工程岩体节理力学[M]. 上海：同济大学出版社，2002：3-4.(XIA Caichu，SUN Zongqi. Engineering jointed rock mechanics[M]. Shanghai：Tongji University Press，2002：3-4.(in Chinese))
[2]	俞缙，赵晓豹，赵维炳，等. 改进的岩石节理弹性非线性法向变形本构模型研究[J]. 岩土工程学报，2008，30(9)：1 316-1 321.(YU Jin，ZHAO Xiaobao，ZHAO Weibing，et al. Improved nonlinear elastic constitutive model for normal deformation of rock fractures[J]. Chinese Journal of Geotechnical Engineering，2008，30(9)：1 316- 1 321.(in Chinese))
[3]	RONG G，HUANG K，ZHOU C B，et al. A new constitutive law for the nonlinear normal deformation of rock joints under normal load[J]. Science China：Technological Sciences，2012，55(2)：555-567.
[4]	GOODMAN R E. Methods of geological engineering in discontinuous rocks[M]. New York：West Publishing Company，1976：170-171.
[5]	KULHAWY F H. Stress deformation properties of rock and rock discontinuities[J]. Engineering Geology，1975，9(4)：327-350.
[6]	BANDIS S C，LUMSDEN A C，BARTON N. Fundamentals of rock joint deformation[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1983，20(6)：249-268.
[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]	MALAMA B，KULATILAKE P H S W. Models for normal fracture deformation under compressive loading[J]. International Journal of Rock Mechanics and Mining Sciences，2003，40(6)：893-901.
[9]	GREENWOOD J. Contact of nominally flat surfaces[J]. Proceedings of the Royal Society of London Series A：Mathematical and Physical Sciences，1966，295：300-319.
[10]	GREENWOOD J，TRIPP J. The Contact of two nominally flat rough surfaces[J]. Proceedings of the Institution of Mathematical and Physical Sciences，1970，69(2)：625-634.
[11]	SWAN G. Determination of stiffness and other joint properties from roughness measurements[J]. Rock Mechanics and Rock Engineering，1983，16(1)：19-38.
[12]	BROWN S R，SCHOLZ C H. Closure of rock joints[J]. Journal of Geophysical Research：Solid Earth，1986，91(B5)：4 939-4 948.
[13]	TANG Z C，JIAO Y Y，WONG L N Y. Theoretical model with multi-asperity interaction for the closure behavior of rock joint[J]. International Journal of Rock Mechanics and Mining Sciences，2017，97：15-23.
[14]	TANG Z C，ZHANG Q Z. Elliptical Hertz-Based general closure model for rock joints[J]. Rock Mechanics and Rock Engineering，2021，54：477-486.
[15]	LUO Z Y，ZHENG W，DU S G，et al. Experimental study on normal deformation characteristics of filled rock joints with typical fluctuation morphology[J]. Frontiers in Earth Science，2022，10：1-12.
[16]	BARTON N，CHOUBEY V. The shear strength of rock joints in theory and practice[J]. Rock Mechanics and Rock Engineering，1977，10(1/2)：1-54.
[17]	LADANYI B，ARCHAMBAULT G. Shear strength and deformability of filled indented joints[C]// Proceedings of International Symposium on Geotechnics of Structurally Complex Formations. Capri，Italy：[s. n.]，1977：317-326.
[18]	International Society for Rock Mechanics Commission on Standardization of Laboratory and Field Tests. Suggested methods for the quantitative description of discontinuities in rock masses[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1978，15(6)：319-368.
[19]	肖维民，余欢，李锐，等. 薄层充填岩石节理抗剪强度特性试验研究[J]. 岩石力学与工程学报，2019，38(增2)：3 420-3 428. (XIAO Weimin，YU Huan，LI Rui，et al. Experimental research on the shear strength of thinly-infilled rock joints during shearing[J]. Chinese Journal of Rock Mechanics and Engineering，2019，38(Supp.2)： 3 420-3 428.(in Chinese))