The Study on Creep Characteristics of Coal

Abstract：The study on creep test of Jincheng coal is run by using the self- developed apparatus of creep test under uniaxial compression.The creep strength is compared with the instantaneous strength based on the test results.An empirical formula of creep curve is fitted and it is considered that the creep test curve is approximate to the logarithmic rule.The theoretical model is established and its parameters are obtained.

Keyword：creep;creep test;theoretical model;creep parameters;