摘要
在经济与技术上,沿空留巷无煤柱护巷相较于保留煤柱护巷都具有极大的优越性,在我国,沿空留巷技术的发展和应用受制于多样化的煤层赋存条件。采用理论分析、数值模拟和工业性试验等方法研究围岩应力特征演化规律、围岩控制技术,实现特厚坚硬顶板条件下沿空留巷,形成对围岩控制具有针对性的技术体系。
In contrast with roadway maintenance retained pillar, non-pillar roadway maintenance has great advantages in technology and economic, however, in our country,due to various conditions of coal occurrence, development and application of gob-side roadway retaining technology were restrained.For gob-side roadway retaining in the conditions of thick and hard roof covered directly, evolution law of surrounding rock stress characteristic and rock control technology were studied by theory analysis,numerical simulation and industrial experiment, individualized technology system of surrounding rock control was established.
出处
《煤炭技术》
CAS
北大核心
2015年第10期40-43,共4页
Coal Technology
关键词
沿空留巷
厚硬顶板
无煤柱连续开采
围岩控制
gob-side roadway retaining
thick and hard roof covered directly
non-pillar continuous mining
surrounding rock control
