The paper adopts the regular triaxial test to measure the shearing strength of the saturated cinder,analyzes the damage model of the saturated cinder and the change rule for the strength along with the ages,proves by the result that the damage model of the saturated sample is called the brittle fracture in the test with little ambient pressure,the damage model is named the plastic failure in the test with bigger ambient pressure,the inner friction angle of the sample doesn’t change with the ages and the cohesive force increases along with tine ages.%采用常规三轴试验，测试了饱和炉渣的剪切强度，分析了饱和炉渣的破坏模式和强度随龄期的变化规律，结果表明：围压小的试验中，饱和试样破坏模式为脆性破坏；围压大的试验中，饱和试样破坏模式为塑性破坏；饱和试样的内摩擦角基本不随龄期变化，粘聚力随龄期增加而增加。
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