The thesis analyzes the effect of the increase of mining depth on the floor heave, discusses the laws that gravity stress, tectonic stress, the strength of surrounding rock, terrestrial heat and imbibition water change with the increase of mining depth.

• 分析了采深对巷道底鼓的影响，以及自重应力、构造应力、围岩强度、地温、水随开采深度变化的规律。