两种岩石试件的“超声–回弹–密度”综合筛选法研究

doi:10.13722/j.cnki.jrme.2016.1247

Abstract
Figure/Table
References (20)
Related Citation (0)

Download: PDF (377 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract

In order to avoid the discreteness in laboratory test of rock mechanics，with the current prevailing technology of non-destructive testing，in view of the Hertz contact theory and energy conservation law，and based on the principle of rebound detection，the mechanism of rock-strength prediction by “ultrasonic- rebound-density” comprehensive screening method is studied，and multiple regression models are established concerning the relationships of rock uniaxial compressive strength with density，rebound and compressional wave velocity. Thus combined with stratigraphic CT scanning technique，a new method to predict the compressive strength of rock mass is put forward. Then after the non-destructive testing of granite and sandstone，this paper obtained their predicted compressive strength with the models mentioned above. The predicted results deviate from the results obtained by lab test by no more than －2.53% to 2.06% and 3.09% to 4.84%，and the correlation coefficients of the two fitting formulas are both more than 0.9. Conclusions are that this method is much more accurate than previous empirical formulas and can provide reference for rock grouping under different working conditions，and the prediction error of the grouped rock samples ranges from －5% to +5%.

Key words： rock mechanics；granite；sandstone；“ultrasonic - rebound-density&rdquo comprehensive method；contact theory；strength prediction

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	WANG Zijuan1
	2
	LIU Xinrong1
	FU Yan3
	YUAN Wen1
	MIAO Luli1

Cite this article:

WANG Zijuan1,2,LIU Xinrong1, et al. Comprehensive screening method of “ultrasonic-rebound-density” for two kinds of rock specimens[J]. , 2018, 37(S1): 3575-3583.

URL:

https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2016.1247 OR https://rockmech.whrsm.ac.cn/EN/Y2018/V37/IS1/3575

[1]	中华人民共和国国家标准编写组. GB/T50266—2013工程岩体试验方法标准[S]. 北京：中国计划出版社，2013.(The National Standards Compilation Group of People′s Republic of China. GB/T50266—2013 Standard for tests method of engineering rock masses[S]. Beijing：China Planning Press，2013.(in Chinese))
[2]	WASANTHA P L P，RANJITH P G，ZHAO J，et al. Strain rate effect on the mechanical behaviour of sandstones with different grain sizes[J]. Rock Mechanics and Rock Engineering，2015，48(5)：1883-1895.
[3]	WASANTHA P L P，RANJITH P G. The Taguchi approach to the evaluation of the influence of different testing conditions on the mechanical properties of rock[J]. Environmental Earth Sciences，2014，72(1)：79-89.
[4]	SHARMA P K，KHANDELWAL M，SINGH T N. A correlation between Schmidt hammer rebound numbers with impact strength index，slake durability index and P-wave velocity[J]. International Journal of Earth Sciences，2011，100(1)：189-195.
[5]	AYDIN A，BASU A. The Schmidt hammer in rock material characterization[J]. Engineering Geology，2005，81(1)：1-14.
[6]	AYDIN A. ISRM suggested method for determination of the Schmidt hammer rebound hardness：revised version[C]//The ISRM Suggested Methods for Rock Characterization，Testing and Monitoring：2007-2014. [S.l.]：Springer International Publishing，2008：25-33.
[7]	张后全，徐建峰，贺永年，等. 灰岩单轴压缩试验室尺度效应研究[J]. 岩石力学与工程学报，2012，31(增2)：3491-3496.(ZHANG Houquan，XU Jianfeng，HE Yongnian，et al. Study of laboratory scale effect of limestone under uniaxial compression[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(Supp.2)：3491-3496.(in Chinese))
[8]	刘宗平，王润起，吴小林，等. 施密特锤试验数据处理方法及其在预估岩石可钻性中的应用[J]. 现代地质，1990，4(4)：113-125.(LIU Zongping，WANG Runqi，WU Xiaolin，et al. Schmidt hammer rebound data processing method and its application to estimation of rock drill ability[J]. Geoscience，1990，4(4)：113-125.(in Chinese))
[9]	朱合华，周治国，邓涛. 饱水对致密岩石声学参数影响的试验研究[J]. 岩石力学与工程学报，2005，24(5)：823-828.(ZHU Hehua，ZHOU Zhiguo，DENG Tao. Acoustic parameters of low-porosity rock under dry and saturated conditions[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(5)：823-828.(in Chinese))
[10]	邓华锋，李建林，邓成进，等. 岩石力学试验中岩样选择和抗压强度预测方法研究[J]. 岩土力学，2011，32(11)：3399-3403.(DENG Huafeng，LI Jianlin，DENG Chengjin，et al. Analysis of sampling in rock mechanics test and compressive strength prediction methods[J]. Rock and Soil Mechanics，2011，32(11)：3399-3403.(in Chinese))
[11]	VILHELM J，RUDAJEV V，LOKAJÍ?EK T，et al. Velocity dispersion in fractured rocks in a wide frequency range[J]. Journal of Applied Geophysics，2013，90：138-146.
[12]	MCKENZIE C K，STACEY G P，GLADWIN M T. Ultrasonic characteristics of a rock mass[C]//International Journal of Rock Mechanics and Mining Sciences andGeomechanics Abstracts，1982，19(1)：25-30.
[13]	FENER M. The effect of rock sample dimension on the P-wave velocity[J]. Journal of Nondestructive Evaluation，2011，30(2)：99-105.
[14]	RAYNAUD S，VASSEUR G，CÉLÉRIER B，et al. Experimental study of the relation between the permeability of kaolinite and its deformation at micro and macro scale[J]. International Journal of Rock Mechanics and Mining Sciences，2010，47(4)：559-567.
[15]	陈志城. 混泥土材料的接触损伤及球压法无损评判研究[硕士学位论文][D]. 北京：中国建筑材料科学研究院，2001.(CHEN Zhicheng. Contact damage and nondestruetive test of concrete materials by using sphere indentation[M. S. Thesis][D]. Beijing：China Building Materials Academy，2001.(in Chinese))
[16]	诸德超，刑誉峰. 点弹性碰撞问题之解析解[J]. 力学学报，1996，28(1)：99-103.(ZHU Dechao，XING Yufeng. The analytical solution of the point impact[J]. Journal of Mechanics，1996，28(1)：99-103.(in Chinese))
[17]	张继业，曾京，舒仲周. 杆的纵向冲击振动[J]. 振动与冲击，1999，18(3)：57-61.(ZHANG Jiye，ZENG Jing，SHU Zhongzhou. The axial impact vibration of bar[J]. Vibration and Impact，1999，18(3)：57-61.(in Chinese))
[18]	王俊峰. 碰撞冲击力的数值计算与测试方法研究[硕士学位论文][D].上海：上海交通大学，2007.(WANG Junfeng. Study on numerical simulation and testing method of impact force[M. S. Thesis][D]. Shanghai：Shanghai Jiao Tong University，2007.(in Chinese))
[19]	翟越，马国伟，赵均海，等. 花岗岩和混凝土在冲击荷载下的动态性能比较研究[J]. 岩石力学与工程学报，2007，26(4)：762-768.(ZHAI Yue，MA Guowei，ZHAO Junhai，et al. Dynamic capability of granite and concrete under impact compressive loading[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(4)：762-768.(in Chinese))
[20]	杨更社. 岩石细观损伤力学特性及本构关系的CT识别[J]. 煤炭学报，2000，25(12)：102-106.(YANG Gengshe. CT identification on the meso-damage mechanic characteristics and constitutive relation of rock[J]. Journal of China Coal Society，2000，25(12)：102-106.(inChinese))