Describes the methods of reinforcing roof of the plank and surrounding rock by using pipe-burying filling, to mak them as a whole, so as to go-through the caving zone safely and smoothly.

详细介绍了采用埋管注浆方法充填加固冒落段巷道顶板及围岩，使之胶结成为整体，从而安全顺利地通过该冒落带的施工技术。