Method and device for measuring karst fissure soil peristalsis in karst region

The invention relates to a method and device for measuring karst fissure soil peristalsis in a karst region. The method comprises: 1) preparing a rectangular cavity for simulating karst fissures in akarst region, wherein the lower mouth of the rectangular cavity is used to simulate a fissure outlet, 2) filling the rectangular cavity with test soil for simulating sedimentary soil in the karst fissures in the karst region, 3) slicking and roughening the surface of the soil with a thin wood plate so that the roughening degree of the soil surface is the same to that of soil in a natural state, 4)placing the rectangular cavity filled with the test soil in water, wherein the water level height is lower than the test soil height, so that water permeates the test soil from bottom to top until the test soil is saturated, 5) applying static pressure to the upper surface of the test soil, starting timing, connecting a sample to a lower opening of the rectangular cavity, counting time, and collecting sample data until th