高河矿E1302综放工作面柔模支护沿空留巷设计VIP免费

※※※※※※※※※※※※※※※※※※※潞安矿区柔模支护完全开采技术应用研究※※※※※※※※※※※※※※※※※※※高河矿E1302综放工作面柔模支护沿空留巷设计二O一三年五月山西潞安环保能源开发股份有限公司西安科技大学I目录1概述.........................................................................................................................................11.1立项背景..........................................................................................................................11.2沿空留巷的意义..............................................................................................................41.3沿空留巷国内外研究现状..............................................................................................51.3.1沿空留巷围岩活动规律研究现状............................................................................51.3.2沿空留巷巷旁支护研究现状....................................................................................71.3.3沿空留巷工程实践现状............................................................................................81.4研究内容和技术路线......................................................................................................92E1302工作面工程地质条件...............................................................................................113柔模混凝土沿空留巷设计...................................................................................................133.1巷道原支护参数............................................................................................................133.2巷内永久加强支护设计................................................................................................143.3超前隔离支护设计........................................................................................................163.3.1切顶挡矸支柱设计..................................................................................................163.3.2护顶挡矸金属网设计..............................................................................................163.4待浇筑空间支护设计....................................................................................................163.5巷内临时加强支护设计................................................................................................163.6巷旁支护设计................................................................................................................173.7留巷埋管法瓦斯抽放技术............................................................................................203.8柔性模板设计................................................................................................................203.8.1柔性模板规格..........................................................................................................203.8.2柔模工操作规程......................................................................................................213.9浇筑混凝土设计............................................................................................................223.9.1混凝土配合比..........................................................................................................223.9.2混凝土泵注工操作规程..........................................................................................223.10留巷通风设计...............