Grouting theories and technologies for the reinforcement of fractured rocks surrounding deep roadways

作     者：Hongpu Kang Wenzhou Li Fuqiang Gao Jianwei Yang Hongpu Kang;Wenzhou Li;Fuqiang Gao;Jianwei Yang

作者机构：CCTEG Coal Mining Research InstituteBeijingChina Coal Mining BranchChina Coal Research InstituteBeijingChina State Key Laboratory of Coal Mining and Clean Utilization(China Coal Research Institute)BeijingChina 

出 版 物：《Deep Underground Science and Engineering》 (深地科学（英文）)

年 卷 期：2023年第2卷第1期

页      面：2-19页

核心收录：

学科分类：081901[工学-采矿工程] 0819[工学-矿业工程] 08[工学] 

基　　金：Innovation and Entrepreneurship Funds of Tiandi Science&Technology Co.Ltd. Grant/Award Number:2022-2-TD-MS013 

主　　题：deep roadways development direction field study fractured rocks grouting materials grouting methods high-pressure grouting 

摘      要：Grouting is an effective method to improve the integrity and stability of fractured rocks that surround deep *** years of research and practice,various theories and a complete set of grouting technologies for deep roadways with fractured rocks have been developed and are widely applied in Chinese coal mining *** paper systematically summarizes and analyzes the research results concerning the theory,design,materials,processes,and equipment for the grouting and reinforcement of fractured rocks surrounding deep ***,in terms of grouting methods,pregrouting,groutingwhile-excavation,and postgrouting methods are explored;in terms of grouting theory,backfill grouting,compaction grouting,infiltration grouting,and fracture grouting theories are *** addition,this paper also studies grouting borehole arrangement,water-cement ratio,grouting pressure,grouting volume,grout diffusion radius,and other grouting parameters and their determination *** this basis,this paper explores the physical and mechanical properties of organic and organic-inorganic composite grouting materials,and assess grouting reinforcement quality testing methods and *** as the field cases,the application of pregrouting in front of heading faces,groutingwhile-excavation,and postgrouting in the Kouzidong coal mine are then introduced,and the effects of the grouting reinforcements are *** paper proposes a development direction for grouting technology based on problems existing in the grouting reinforcement of fractured rocks surrounding deep roadways.