5、rlyloading,thesaltrockelasticmodulusincreasesgraduallyalongwiththeincreaseofthepressureholdingtime,andwiththeincreaseofpressureholdingtime,thecorrespondingaxialstrainandlateralstrainofsaltrockpeakstresswillincreasegradually.Thereisanegativecorrelationbetweensaltrock d