(1. Faculty of Architectural，Civil Engineering and Environment，Ningbo University，Ningbo，Zhejiang 315211，China；2. State Key Laboratory of Geohazard Prevention and Geoenvironment Protection，Chengdu University of Technology，Chengdu，Sichuan 610059，China；3. Zhejiang Geotechnical and Foundation Company，Ningbo，Zhejiang 315040，China；4. Wuhan Surveying-geotechnical Research Institute Co.，Ltd. of MCC，Wuhan，Hubei 430080，China)
Abstract：Take the interlayered rock mass composed of green schist and marble as subject of study，the numerical analysis of its mechancial characteristics under unloading condition was done by using FLAC3D. The research results show that the initial deviatoric stress has great effect on stress state and deformation when rock sample fails of confining pressure reduction test under constant axial stress. The stress increment ratio also has great effect on stress state and deformation when rock sample fails of confining pressure reduction test with increasing axial stress. The stress path has little effect on characteristics of strength and deformation of rock. The strength of interlayered rock mass is nearly not influenced by the stress path，but the deformation is significantly affected.
熊良宵1，2，虞利军3，杨昌斌4，李天斌2. 卸载条件下层状岩体力学特性研究[J]. 岩石力学与工程学报, 2014, 33(S2): 3545-3554.
XIONG Liangxiao1，2，YU Lijun3，YANG Changbin4，LI Tianbin2. RESEARCH ON MECHANICAL CHARACTERISTICS OF INTERLAYERED ROCK MASS UNDER UNLOADING CONDITION. , 2014, 33(S2): 3545-3554.
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2014, Vol. 33 
