To handle a cave caused by roof fallin a underground mine is a very hard and dangrous work.This paper introduced new research achievements of Beijing Research Institute of coal mining, CCMRI.

• 介绍了煤炭科学研究总院北京开采所新近研究成功的用于机械化充填井下各种空洞的泡沫水泥新材料、新设备和新工艺。