采矿与安全工程学报2012，Vol.29Issue(3)：396-399,4.
离层型顶板事故的临界离层面积预警判据研究
Study on Warning Criterion of Critical Separation Area for Separation Type Roof Accident
摘要
Abstract
In order to better control and avoid the roof accidents, we put forward the roof accident pre-vention and control system of "roof caving mechanism-roof control design- roof support quality and dynamic monitoring-roof accident warning" in this paper. In addition, taking separation type roof ac-cident as research object, considering the roof as isotropic body, and simplifying the movement and de-struction of strata as simply supported beam, we deduced the calculation formula for critical separation area 5max of roof breakage according to the deflection curve equation of simply supported beam, and proposed Smax as the warning criterion of separation type roof accident. Through the engineering exam-ple analysis, the accuracy of Smax warning criterion for separation type roof accident is verified.关键词
顶板事故/临界离层面积/预警判据Key words
roof accident/ critical separation area/ warning criterion分类
矿业与冶金引用本文复制引用
谢建林,许家林,朱卫兵..离层型顶板事故的临界离层面积预警判据研究[J].采矿与安全工程学报,2012,29(3):396-399,4.基金项目
国家自然科学基金项目(50974116) （50974116）
国家重点基础研究计划(973)项目(2007CB209403) （973）
中国矿业大学科研人才基金(2011RC34) （2011RC34）
江苏高校优势学科建设工程项目 （）
