竖井工作面高压预注浆止浆垫设计与施工

摘要

评述某铁矿主副井工作面高压预注浆的两种设计结果：一是以地质特点为依据，严格按科学设计，施工技术措施得当，给注浆施工带来了良好的技术经济效益；二是未从实际出发进行设计，给工程造成不应有的损失，剖析其失败原因。%Review is made on the results of two designs for the high pressure pregrouting at the stopes of the main shaft and the auxiliary shaft in an iron mine.One design took the geological characteristics as the basis and was strictly and scientifically made.With proper construction technical measures,it brough both good technical and economical effects to the grouting engineering.The another design was made in no consideration of practice.As a result,it brought avoidable losses to the engineering.Its failure cause are analyzed.