Taking the carbonaceous phyllite as investigative subject,which is the weak layer widely distributed in Yunfu pyrite,Guangdong province,the deformation characteristics and strength properties of the carbonaceous phyllite rock mass are analyzed through laboratory uniaxial and triaxial compression tests.Based on the tests on natural and saturated carbonaceous phyllite,the elastic constitutive equations of the carbonaceous phyllite,considering the closing of micro cracks,are established; and the deformation characteristics andstrength properties of water-weakening influence is analyzed.Through the tests,the deformation characteristics and strength properties of the carbonaceous phyllite are further understood,which can give some advices to the design of rock slope containing weak layers of the carbonaceous phyllite.
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