煤矿安全2019，Vol.50Issue(8)：84-87,4.DOI:10.13347/j.cnki.mkaq.2019.08.020
大厚度薄层复合顶板煤巷高强联合支护技术
High-strength Combined Supporting Technology of Coal Roadway with Large Thickness and Thin-Layered Composite Roof
赵明洲 1杨仁树 2方娟3
作者信息
- 1. 中国矿业大学(北京)资源与安全工程学院,北京 100083
- 2. 贵州工程应用技术学院 矿业工程学院,贵州 毕节551700
- 3. 北京科技大学 土木与资源工程学院,北京 100083
- 折叠
摘要
Abstract
To solve the problem of large deformation of the roadway with large thickness and thin-layered composite roof in the 53151 haulage roadway of Zhaozhuang Coal Mine, combining with field investigation, laboratory experiments, theoretical analysis and physical experiments, the main causes of deformation and failure of the roadway are analyzed, including the thickness of stratification of composite roof, content of expansive minerals, unreasonable supporting parameters of supporting body and supporting surface components. Based on the theory of combination beam and suspension, the "high-strength combined support technology"is proposed, and the support parameters are optimized. The results of numerical simulation and field practice show that compared with the original support scheme, the deformation amount of roof and floor and two sides of roadway in the optimized supporting scheme are reduced by more than 80% and 63% respectively, and good surrounding rock control effect is achieved.关键词
薄层复合顶板/分层厚度/高强联合支护/组合承载梁/协调作用Key words
thin-layer composite roof/thickness of stratification/high-strength combined support/composite bearing beam /coordinating function分类
矿业与冶金引用本文复制引用
赵明洲,杨仁树,方娟..大厚度薄层复合顶板煤巷高强联合支护技术[J].煤矿安全,2019,50(8):84-87,4.
