扰动覆岩离层异速发展问题研究  

Study on subsidence calculation law on allometric growth of mining overburden separated strata

作　　者：于广明[1] 满孝林 胡晓阳[1] 米文瑞 郁炳尧 YU Guang-ming;MAN Xiao-lin;HU Xiao-yang;MI Wen-rui;YU Bing-yao(School of Civil Engineering, Qingdao University of Technology, Qingdao 266033, China)

机构地区：[1]青岛理工大学土木工程学院,青岛266033

出　　处：《青岛理工大学学报》2017年第6期1-7,共7页Journal of Qingdao University of Technology

基　　金：国家自然科学基金资助项目(51374135);国家留学基金资助项目(201408370008)

摘　　要：在沉积地层中,岩层表现出层状且具有明显的层面,地下开挖后,覆岩中常常产生沿着层面的离层.但是,由于各层岩性的差异、地下工程开挖工序的变化、岩层层面高度的不同等因素,导致离层规律极其复杂.研究了扰动覆岩离层异速发展问题,首先通过建立岩层地基梁-岩梁组合力学模型,分析和认识了离层异速发展的力学根源;然后,借助相似材料模型试验手段,验证扰动覆岩离层异速发展现象,并系统研究和分析了扰动覆岩离层发展规律,研究揭示了地表沉降与覆岩离层异速增长的关系,这对认识地表沉降基本规律和实施沉降损害控制具有重要意义.In the sedimentary coal stratum,rock stratum exhibits layered feature has an obvious level.Overlying rock often produces separation layer along the level after the underground coal mining.However,due to the difference in the layers of rocks,the change of the mining process,the difference height in the level and other factors,the rule of separated layer is extremely complex.Therefore,the allometric phenomenon are verified,and the laws of mining overburden separated strata are systematically studied and analyzed by means of experiment and numerical simulation.The paper studies the mechanical origin of allometric development of overburden separated strata,analyzes the space time law of mining subsidence and overburden bed separation,finds the relationship between surface subsidence and allometric growth of mining overburden separated strata,establishes its development formula based on the theory of beam in the mechanics and the subsidence model based on allometric growth of mining overburden separated strata.This is of great significance to understand the basic laws of subsidence and the implementation of settlement damage control.

关 键 词：扰动 覆岩离层 异速发展 地表沉降 地基梁岩梁组合力学模型 

分 类 号：O319.56[理学—一般力学与力学基础]