The invention relates to the technical field of
geological survey, and particularly discloses a rock resistivity measurement method considering
water content change and application. The method comprises the following steps: firstly, synchronously acquiring initial
mass and initial volume parameters of an on-site
rock sample by using a weighing method and a drainage method, and further accurately calculating the initial density of the on-site
rock sample; in the rock
processing link, after the rock is processed into a regular geometrical shape, the rock volume is accurately measured, the theoretical
mass is calculated by combining the initial density, meanwhile, the actual
mass is obtained by adopting a weighing method, and the
moisture content of the rock is accurately regulated and controlled by adopting a
dehydration method or an infiltration method by comparing the difference between the theoretical mass and the actual mass. The deviation between the density of the processed rock and the initial density is controlled within an extremely
small range, so that the initial physical state of the rock in the
natural environment is effectively restored, and the measurement of the initial resistivity of the rock is realized. And the resistivity measurement result deviates from the true value of the
natural state due to the significant change of the
moisture content.