Expansion force measuring device with dry-wet freeze-thaw cycle and permeability coefficient measuring functions

The invention discloses an expansive force measuring device with dry-wet freeze-thaw cycle and permeability coefficient measuring functions, and relates to the field of geotechnical test data measuring equipment, and the expansive force measuring device comprises a sample cylinder, an expansive force measuring system, an osmotic pressure measuring system, a freeze-thaw cycle system and a dry-wet cycle system. The expansive force measuring device with dry-wet freeze-thaw cycle and permeability coefficient measuring functions ensures more convenient, accurate and efficient soil expansion rate measurement, and ensures the accuracy of related test data; according to the expansive force measuring device with the dry-wet freeze-thaw cycle and permeability coefficient measuring functions, the expansive force and permeability coefficient of a soil sample can be measured, dry-wet cycle and freeze-thaw cycle of the soil sample can be achieved, integrated arrangement is achieved, different testing devices do not need to