文献类型：期刊文献

中文题名：深部大型硐室壳体均撑支护控制技术

英文题名：Technology of even supporting by using large chamber shell in deep mines

作者：朱光丽 王树立 张开智 蒋金泉 夏均民

第一作者：朱光丽

通信作者：Wang, Shuli

机构：[1]山东理工大学资源与环境工程学院;[2]山东科技大学矿山灾害预防控制省部共建国家重点实验室培育基地;[3]贵州理工学院矿业工程学院

第一机构：山东理工大学资源与环境工程学院,山东淄博255000

年份：2018

卷号：35

期号：3

起止页码：525-531

中文期刊名：采矿与安全工程学报

外文期刊名：Journal of Mining & Safety Engineering

收录：CSTPCD;;EI(收录号：20183505741800);Scopus;北大核心:【北大核心2017】；CSCD:【CSCD2017_2018】；

基金：国家自然科学基金项目(51564004;51374139;51574155);山东省自然科学基金项目(ZR2013EEM018);贵州省科技厅;贵州理工学院联合基金项目([2014]7370)

语种：中文

中文关键词：深部大型硐室;壳体均撑;高压封闭注浆;最小承载能力

外文关键词：large chamber in deep mine;total support by shell;closed grouting with high pressure;minimum bearing capacity

摘要：针对当下煤矿深部支护难题,立足于服务年限长的大型硐室,提出深部大型硐室支护控制原则:全断面均撑、耦合让压及超强防冲支护。基于壳体的优良力学性能,借鉴建筑和岩土工程领域的相关技术,提出深部大型硐室壳体均撑支护控制技术:以"U型钢棚+双层链接钢筋网"并辅以混凝土整体浇筑,形成内层衬砌承重强壳体;以"浅部注浆+预应力注浆锚索+高压封闭深部注浆"形成外层围岩自承载壳体;两者组合形成沿硐室轴向的连续双层壳体结构,通过锚索高预应力张拉内层承重强壳体,在硐室全断面内提供均布预应力,实现硐室全断面均撑支护。系统分析了壳体均撑支护作用机理与技术优势,推导了内层壳体最小承载能力计算方法及硐室稳定性判据。研究成果在千米深井唐口煤矿大型绞车房硐室进行了成功实践,对于当下矿井深部支护具有重要指导和借鉴意义。
Aiming at the problem of support in the deep mines, especially the large chamber with a long service time, the support principles in deep mines are proposed, which are the total supports in the whole cross-section, coupling and coordination against pressure and super anti-scour. Based on the excellent mechanical properties of shell and using the technology in construction engineering and geotechnical engineering, technology of total support by shell to large chamber in deep mines is put forward： using U shape shed and lattice grid as a skeleton to pour concrete forming strong bearing shell; using pre-stressed grouting anchor cable and closed high-pressure grouting to reinforce deep rocks forming the outside stable shell of surrounding rock and using anchor wires combing bearing shell with outside stable shell to provide high pressure. Finally, all of them could form continuous double shells along the axial direction of chamber. The mechanism are analyzed systematically to derive the damage critical load of strong bearing shell and stability criterion of chamber. The research outcomes are successfully used in the winch room of Tangkou mine and also play guidance for supportting in deep mines.