复杂条件煤巷掘进顶板控制数值模拟及应用  

Numerical Simulation Research on Roof Control of Roadway in Excavation under Complex Conditions and Its Application

作　　者：魏敬喜[1] 华心祝[1] 李迎富[1] 

机构地区：[1]安徽理工大学能源与安全学院,安徽淮南232001

出　　处：《安徽理工大学学报（自然科学版）》2010年第3期23-28,共6页Journal of Anhui University of Science and Technology:Natural Science

摘　　要：为了解决刘庄煤矿大断面煤巷复合破碎顶板稳定性难于控制,制约快速掘进,影响安全施工和巷道维护这一重大工程问题,运用FLAC3D数值模拟分析,对巷道断面和支护进行优化设计,提出人造拱形断面及滞后迎头一段距离的弱化支护技术,实现了最高月掘进1 510m的好成绩,为煤巷快速掘进顶板控制提供了保障。In order to solve the difficult engineering problems of compound broken roof control of roadway in coal seam with large cross-section,limiting fast excavation and safe construction and roadway maintenance,optimal design of roadway cross-section and its support was performed by using FLAC3D numerical simulation.Technology of man-made arch cross-section with delayed support at some distance from roadway heading face was proposed.With the technology a good effect of 1510 meters of excavation development in one month was achieved.The technology provides guarantee for roof control in fast excavation of roadway.

关 键 词：复合破碎顶板 大断面 人造拱形断面 滞后支护 顶板控制 

分 类 号：TD325.1[矿业工程—矿井建设]