以实验室模拟试验为基础,获得了地表裂缝发育的一系列规律,建立了地表裂缝发育极限深度的预计模型,建立了裂缝发育宽度和深度关系的典型曲线.实例证 Based on the laboratory simulation experiments, a series of laws of surface crack development were obtained, and a prediction model of the ultimate depth of surface crack development was established, and a typical curve of the relationship between width and depth of crack development was established.