An improved mode of coal cutting is recommended aiming at the specifical status of surface collapse of coal field in Yanzhou city, and several control policies on restoration and reclamation of collapsing land are also put forward.

• 针对兖州矿区的具体塌陷状况提出了改进采煤方式、对塌陷土地进行恢复和复垦等几点防治措施。