A Novel Mogi Type True Triaxial Testing Apparatus and Its Use to Obtain Complete Stress-Strain Curves of Hard Rocks

doi:10.1007/s00603-015-0875-y

CORC > 武汉岩土力学研究所 > 中科院武汉岩土力学所 > 岩土力学所知识全产出 > 期刊论文

	A Novel Mogi Type True Triaxial Testing Apparatus and Its Use to Obtain Complete Stress-Strain Curves of Hard Rocks
	Kong, R.2; Feng, Xia-Ting1 ; Zhang, Xiwei 2; Wang, G.2
刊名	ROCK MECHANICS AND ROCK ENGINEERING
	2016
卷号	49 期号:5 页码:1649-1662
关键词	True triaxial apparatus Deep mining Hard rock Brittle failure Post-peak deformation
ISSN号	0723-2632
DOI	10.1007/s00603-015-0875-y
英文摘要	A true triaxial apparatus (TTA) was designed and fabricated at Northeastern University, Shenyang, China, by modifying the original Mogi type testing apparatus to emulate three-dimensional stress paths in deep mining and tunneling excavations. Such an apparatus can be used to investigate deformation and brittle failure behaviors of hard rocks as well as the cause of rockbursts. The novel TTA can capture the post-peak behavior of a 50 x 50 x 100 mm(3) specimen. Technical improvements such as a considerable increase of the stiffness of the loading frames were implemented to deal with difficulties in TTA testing. The accuracy of the volume change measurement was improved and a combined pneumatic and hydraulic technique was applied to create a "floating" vertical loading frame. The end friction effect and the loading gap effect were evaluated using a series of tests. Repeatability tests, brittle failure tests in a loading stress path and an unloading stress path (unloading of sigma(3)) were carried out on granite specimens to verify the performance of the TTA. The test results show that the apparatus achieves its original design goal.
WOS研究方向	Engineering ; Geology
语种	英语
出版者	SPRINGER WIEN
WOS记录号	WOS:000374981500004
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/3867]
专题	岩土力学所知识全产出_期刊论文岩土力学所知识全产出国家重点实验室知识产出_期刊论文
作者单位	1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn ; 2.Northeastern Univ, Minist Educ Safe Min Deep Met Mines, Key Lab
推荐引用方式 GB/T 7714	Kong, R.,Feng, Xia-Ting,Zhang, Xiwei,et al. A Novel Mogi Type True Triaxial Testing Apparatus and Its Use to Obtain Complete Stress-Strain Curves of Hard Rocks[J]. ROCK MECHANICS AND ROCK ENGINEERING,2016,49(5):1649-1662.
APA	Kong, R.,Feng, Xia-Ting,Zhang, Xiwei,&Wang, G..(2016).A Novel Mogi Type True Triaxial Testing Apparatus and Its Use to Obtain Complete Stress-Strain Curves of Hard Rocks.ROCK MECHANICS AND ROCK ENGINEERING,49(5),1649-1662.
MLA	Kong, R.,et al."A Novel Mogi Type True Triaxial Testing Apparatus and Its Use to Obtain Complete Stress-Strain Curves of Hard Rocks".ROCK MECHANICS AND ROCK ENGINEERING 49.5(2016):1649-1662.