COMPARISON STUDY ON TWO KINDS OF INDIRECT MEASUREMENT METHODS OF TENSILE STRENGTH OF COAL IN LAB
煤岩抗拉强度两种室内间接测定方法比较与成果分析

The basic principle,experiment device and testing method of Brazil test method and sleeve fracturing method are introduced to determine the tensile strength of coal in lab. The distribution characteristics of tensile strength of coal is systematically analyzed. The differences of tensile strength of coal and its formation with the two methods are evaluated.