(1. State Key Laboratory of Geomechanics and Geotechnical Engineering，Institute of Rock and Soil Mechanics，Chinese Academy of Sciences，Wuhan，Hubei 430071，China；2. Research Center of Geotechnical and Structural Engineering，Shandong University，Jinan，Shandong 250061，China)
Abstract：Weak intercalated layers，to a large degree，affect the stability of rock mass when excavating roadways in underground engineering. According to analyzing the features of damage and separation-growing of weak intercalated layers，the exponential nonlinear damage evolution model of weak intercalated layers is proposed；and the contrast optimization of supporting is done for some roadway buried in deep mudstone with weak intercalated layers by finite element software ABAQUS. Aiming at the problem of floor heaving to a large deformation and a serious buckling deformation in the vicinity of weak intercalated layers at the initial period of roadway excavation，measures of prestressed anchor reinforcement，inverted arch excavation and backfilling and steel arch of shoring are proposed，which can restrain separation-growing or damage of weak intercalated layers and deformation of rock mass effectively. The research results can provide useful reference for some similar roadways in deep soft rock mass.
伍国军1，陈卫忠1，2，杨建平1，谭贤君1. 基于软弱夹层损伤破坏模型的软岩巷道支护优化研究[J]. 岩石力学与工程学报, 2011, 30(S2): 4129-4135.
WU Guojun1，CHEN Weizhong1，2，YANG Jianping1，TAN Xianjun1. SUPPORT OPTIMIZATION OF SOFT ROCK ROADWAYS BASED ON DAMAGE CONSTITUTIVE MODEL FOR WEAK INTERCALATED LAYERS. , 2011, 30(S2): 4129-4135.
何满潮，景海河，孙晓明. 软岩工程力学[M]. 北京：科学出版社，2002：2-3.(HE Manchao，JING Haihe，SUN Xiaoming. Mechanics for soft rocks[M]. Beijing：Science Press，2002：2-3.(in Chinese))
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2011, Vol. 30 
