摘要
为了研究长壁工作面顶板周期下沉量对支架支撑高度的影响,本文以某长壁工作面为背景,利用数值模拟和理论分析方法,通过分析长壁工作面上覆岩层运动规律,对浅埋深长壁工作面顶板破坏特征进行研究,并对顶板所成结构形式进行了探讨,分析了顶板周期下沉量对支架支撑高度的影响,最后通过现场实测数据对所得结论进行了验证。研究结果表明,顶板最大周期下沉量对于确定工作面采高及支架最小可缩量具有重要意义。本文的研究结论对浅埋深长壁工作面顶板结构形式也提出了新的探讨。
In order to understand the movement characteristics and the structure of roof at longwall face,the deformation characteristics and the structure of roof at longwall face were investigated using numerical simulation and theoretical analysis.The results show that the bearing structure in the overburden strata can still be formed under a shallow buried depth and the structure can protect the support.The conclusion was verified through the observation data.The paper presents the new findings for the roof structure and movement characteristics at longwall face with a shallow depth.
出处
《辽宁工程技术大学学报(自然科学版)》
CAS
北大核心
2010年第6期1046-1049,共4页
Journal of Liaoning Technical University (Natural Science)
基金
国家自然科学基金资助项目(50774046)
国家自然科学基金重点资助项目(50434020)
关键词
浅埋煤层
顶板结构
运动规律
顶板下沉
shallow coal seam
roof structure
movement laws
roof subsidence