“高档面破碎顶板注浆加固技术研究”通过鉴定中国矿业大学和平顶山矿务局共同完成的“高档面破碎顶板注浆加固技术”于日前通过了由河南省科委组织的技术鉴定。在破碎顶板条件下如何保证矿井工作面生产的正常进行，一直是矿山压力研究的主题之一。由平顶山矿务局和中国矿... “High-grade surface broken roof grouting reinforcement technology” through the identification of China University of Mining and Pingdingshan Mining Bureau jointly completed the “high-grade surface broken roof grouting reinforcement technology” recently passed by the Henan Provincial Science and Technology Commission organized the technical appraisal. How to ensure the normal operation of mine face under the condition of broken roof has been one of the topics of mine pressure research. From Pingdingshan Mining Bureau and China Mine ...