花岗岩微观力学性质试验研究

doi:10.13722/j.cnki.jrme.2017.0129

Abstract
Figure/Table
References (20)
Related Citation (15)

Download: PDF (594 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract

In order to study the micro-mechanical properties of granite，the mineral compositions of granite and their proportion were obtained by powder X-ray diffraction experiments，also the surface morphology of granite was observed by optical microscope. Nano-indentation tests were conducted，and then，the load-displacement curves and residual indentation prints were obtained to qualitatively analyze the mechanical properties of the mineral compositions. The elastic modulus and hardness of each component were obtained by statistical analysis of indentation results. A two-step homogenization method was applied to calculate the equivalent elastic modulus and Poisson¢s ratio of the granite，which were compared with those obtained by uniaxial compression test and existing research materials respectively. Results show that：the granite is mainly composed of quartz，feldspar and biotite，which can be identified by color and morphological features. The quartz structure is compact and the mechanical properties are good，which is followed by the feldspar，but the biotite texture is very soft and its pore structure is obvious. The difference between the elastic modulus calculated by the homogenization method and that obtained from the uniaxial compression test is relatively small and the Poisson¢s ratio is in agreement with the existing data，which has important engineering significance for evaluating the mechanical properties of materials. The results of this study can help to better understand the micro-mechanical properties of granite and provide a reference for the study of macroscopic mechanical properties of rock from a microscopic view.

Key words： rock mechanics micro-mechanical properties nano-indentation test mineral composition

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	ZHANG Fan1
	2
	GUO Hanqun2
	ZHAO Jianjian2
	HU Dawei1
	SHENG Qian1
	SHAO Jianfu2
	3

Cite this article:

ZHANG Fan1,2,GUO Hanqun2, et al. Experimental study of micro-mechanical properties of granite[J]. , 2017, 36(S2): 3864-3872.

URL:

https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2017.0129 OR https://rockmech.whrsm.ac.cn/EN/Y2017/V36/IS2/3864

[1]	张帆，盛谦，朱泽奇，等. 三峡花岗岩峰后力学特性及应变软化模型研究[J]. 岩石力学与工程学报，2008，27(增1)：2 651-2 655. (ZHANG Fan，SHENG Qian，ZHU Zeqi，et al. Study on post-peak mechanical behavior and strain-softing model of three gorges granite[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(Supp.1)：2 651-2 655.(in Chinese))
[2]	赵庆新. 矿物掺合料对高性能混凝土徐变性能的影响机理[博士学位论文][D]. 南京：东南大学，2007：36-43.(ZHAO Qingxin. Effects and mechanisms of mineral admixtures on creep properties of high performance concrete[Ph. D. Thesis][D].Nanjing：Dongnan University，2007：36-43.(in Chinese))
[3]	MAGNENETV，AUVRAYC，FRANCIUSG，et al. Determination of the matrix modulus of Meuse/Haute-Marne argillite[J]. Appied ClaySciences，2011，52(3)：266-269.
[4]	BANDINIA，BERRYP，BEMPORADE，et al. Effects of intra- crystalline microcracks on the mechanical behavior of a marble under indentation[J]. International Journal of Rock Mechanics and Mining Sciences，2012，54(1)：47-55.
[5]	SHUKLAP，KUMARV，CURTISM，et al. Nanoindentation studies on shales[C]// The 47thUS Rock Mechanics/GeomechanicsSymposium. San Francisco，USA：[s. n.]，2013：23-26.
[6]	张泰华. 微纳米力学测试技术[M]. 北京：科学出版社，2013：21-25.(ZHANGTaihua.Micro/nano-mechanical testing technology[M].Beijing：Science Press，2013：21-25.(in Chinese))
[7]	黎明，温诗铸. 纳米压痕技术理论基础[J]. 机械工程学报，2003，39(3)：142-145.(LI Ming，WEN Shizhu.Theoretical methods on nanoindentation[J]. Chinese Journal of Mechanical Engineering，2003，39(3)：142-145.(in Chinese))
[8]	赵宏伟，赵宏健，姚金玖，等. 一种钠钙硅酸盐玻璃的纳米压痕测试分析[J]. 纳米技术与精密工程，2009，7(3)：205-210.(ZHAO Hongwei，ZHAO Hongjian，YAO Jinjiu，et al. Nanoindentation test and analysis of a kind of soda lime silica glass[J]. Nanotechnology and Precision Engineering，2009，7(3)：205-210.(in Chinese))
[9]	孙浩，徐金明，吴红斌. 使用试验视频图像研究花岗岩中不同矿物成分的变化特征[J]. 水文地址工程地质，2014，41(5)：44-49. (SUN Hao，XU Jinming，WU Hongbin. An investigation of mineral composition changes on granite surface using video images from uniaxial compression test[J]. Hydrogeology and Engineering Geology，2014，41(5)：44-49.(in Chinese))
[10]	CONSTANTINIDES G，RAVI CHANDRANK S，ULM F J，et al. Grid indentation analysis of composite microstructure and mechanics：principles and validation[J]. Material Science and Engineering，2006，430(12)：189-202.
[11]	MILLER M，BOBKO C，VANDAMME M. Surface roughness criteria for cement paste nano-indentation[J]. Cement and Concrete Research，2008，38(4)：467-476.
[12]	蔡美峰，何满潮，刘东燕. 岩石力学与工程[M]. 北京：科学出版社，2013：49-51.(CAI Meifeng，HE Manchao，LIU Dongyan. Rock Mechanicsand Engineering[M].Beijing：Science Press，2013：49-51.(in Chinese))
[13]	GUERY A C，CORMERY F，SHAO J F，et al. Application of a micromechanical model to cavity excavation analysis in argillite[J]. InternationalJournal ofRock Mechanics and Mining Sciences，2009，46(5)：905-917.
[14]	GUERY A C，CORMERY F，SHAO J F，et al. A comparative micromechanical analysis of the effective properties of a geomaterial：effect of mineralogical compositions[J]. Computers and Geotechnics，2010，37(5)：585-593.
[15]	HUANG Y，SHEN W Q，SHAO J F，et al.Multi-scale modeling oftime-dependent behavior of claystoneswitha viscoplasticcompressile porous matrix[J]. Mechanics of Materials，2014，79(1)：25-34.
[16]	SHEN W Q，SHAO J F，KONDO D，et al.A micro-macro model for clayey rocks with a plastic compressive porous matrix[J]. International Journal of Plasticity，2012，36(9)：64-85.
[17]	SHEN W Q，KONDO D，DORMIEUX L，et al. A closed-form three scale model for ductile rocks with a plasticallycompressible porous matrix[J].Mechanics of Materials，2013，59(6)：73-86.
[18]	MORI T，TANAKA K.Average stress in matrix and average elastic energy of materials with misfittinginclusions[J]. Acta Metallurgica，1973，42(7)：597-629.
[19]	谢仁海，渠天祥，钱光谟. 构造地质学[M]. 徐州：中国矿大出版社，2007：25-37.(XIE Renhai，QU Tianxiang，QIAN Gangmo. Geological tectonics[M]. Xuzhou：China Mining and Technology Press，2007：25-37.(in Chinese))
[20]	赵素晶，孙伟. 纳米压痕在水泥基材料中的应用与研究进展[J].硅酸盐学报，2011，39(1)：164-176.(ZHAO Sujing，SUN Wei. Application and research progress of nanoindentation in the field of cement-based materials[J]. Journal of the Chinese Ceramic Society，2011，39(1)：164-176.(in Chinese))