Failure Behavior for Rocklike Material with Cross Crack under Biaxial Compression

doi:10.1061/(ASCE)MT.1943-5533.0002540

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	Failure Behavior for Rocklike Material with Cross Crack under Biaxial Compression
	Liu, Xuewei ; Liu, Quansheng ; Liu, Bin ; Zhu, Yuanguang ; Zhang, Penglin
	2019
发表期刊	JOURNAL OF MATERIALS IN CIVIL ENGINEERING
ISSN	0899-1561
卷号	31 期号:2 页码:-
摘要	This paper presents an experimental study in which molded gypsum specimens with different crack geometries (T-shaped and X-shaped cross crack) were tested in biaxial compression. Crack propagation and failure behaviors were investigated and nine crack types were detected, namely, wing crack, antiwing crack, secondary crack, horizontal wing crack, quasi-coplanar wing crack, quasi-coplanar secondary crack, far-field crack, surface spalling, and lateral split crack. Moreover, horizontal wing crack and quasi-coplanar wing crack were first observed in the rocklike specimens, which was caused by the added confining pressure. Besides, the cracks and failure modes under uniaxial and biaxial compression were compared according to proposed nine types of new cracks. With an increase in confining pressure, surface spalling and lateral split crack appeared. Lateral split cracks were observed only in T04 (sigma 2=1.5MPa), X03 (sigma 2=1.0MPa), and X04 (sigma 2=1.5MPa), which indicate that lateral split crack is hardly induced under lower confining pressure. The reason is that confining pressure prevents the lateral deformation, therefore, failure can appear only along the free face such as surface spalling and lateral split crack. In practice, surface spalling is the common failure near excavation faces in deep tunnels, which validates the experimental results here.
关键词	Rocklike material Rock mass Failure characteristic Cross crack Biaxial compression
DOI	10.1061/(ASCE)MT.1943-5533.0002540
收录类别	SCI
语种	英语
WOS研究方向	Construction & Building Technology ; Engineering ; Materials Science
WOS类目	Construction & Building Technology ; Engineering, Civil ; Materials Science, Multidisciplinary
WOS记录号	WOS:000453216200004
引用统计	被引频次：31[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://119.78.100.198/handle/2S6PX9GI/15066
专题	岩土力学所知识全产出_期刊论文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, Wuhan 430071, Hubei, Peoples R China; 2.Wuhan Univ, Sch Civil Engn, Key Lab Safety Geotech & Struct Engn Hubei Prov, Wuhan 430072, Hubei, Peoples R China; 3.Wuhan Univ, Sch Civil Engn, Wuhan 430072, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Liu, Xuewei,Liu, Quansheng,Liu, Bin,et al. Failure Behavior for Rocklike Material with Cross Crack under Biaxial Compression[J]. JOURNAL OF MATERIALS IN CIVIL ENGINEERING,2019,31(2):-.
APA	Liu, Xuewei,Liu, Quansheng,Liu, Bin,Zhu, Yuanguang,&Zhang, Penglin.(2019).Failure Behavior for Rocklike Material with Cross Crack under Biaxial Compression.JOURNAL OF MATERIALS IN CIVIL ENGINEERING,31(2),-.
MLA	Liu, Xuewei,et al."Failure Behavior for Rocklike Material with Cross Crack under Biaxial Compression".JOURNAL OF MATERIALS IN CIVIL ENGINEERING 31.2(2019):-.

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