注浆充填作用机理下地表移动变形规律研究

发布时间：2018-06-25 17:42

本文选题：注浆充填 + 变形监测　；参考：《安徽理工大学》2015年硕士论文

【摘要】：地面沉陷主要是一种在自然和人为因素的作用下；当有用矿物被采出以后,开采区域周围岩体的原始应力平衡状态就会受到破坏,应力重新分布,达到新的平衡,而此过程会使得开采区域周围的岩层和地表产生连续的移动、变形和非连续的破坏(开裂冒落等),这种现象称为“开采沉陷”。注浆充填是控制地表沉陷的有效技术手段之一,本论文主要工作如下： (1)以淮北矿业集团袁店二矿7226工作面为研究对象,对采空区进行注浆充填并建立了基于充填作用机理下的移动变形监测网,获得注浆充填作用机理下的地表沉降的观测数据； (2)通过获取的观测数据绘制析袁店二矿7226工作面在注浆充填作用机理下的移动变形曲线,分析变形规律； (3)建立GM(1,1)和D-InSAR模型,对地表监测点进行沉降监测分析,将D-InSAR技术与传统监测方法对比,展示注浆充填在控制矿区地表移动变形的优势。
[Abstract]:Ground subsidence is mainly caused by natural and human factors. When useful minerals are extracted, the original stress equilibrium state of the rock mass around the mining area will be destroyed, and the stress will be redistributed to achieve a new balance. This process will result in continuous movement, deformation and discontinuous destruction (cracking and falling) of the strata and surface around the mining area, which is called "mining subsidence". Grouting filling is one of the effective techniques to control the surface subsidence. The main work of this paper is as follows: (1) taking the 7226 face of Yuandian No. 2 Mine of Huaibei Mining Group as the research object, The grouting filling in goaf is carried out and the moving deformation monitoring network based on the filling mechanism is established to obtain the observation data of the surface subsidence under the grouting filling mechanism. (2) drawing the moving deformation curve of No. 7226 working face of Yuandian No. 2 Mine under the mechanism of grouting filling and analyzing the deformation law through the obtained observation data, (3) establishing GM (1Q1) and D-InSAR models, Based on the analysis of subsidence monitoring points, D-InSAR technology is compared with the traditional monitoring method to show the advantages of grouting filling in controlling the surface movement and deformation of mining area.
【学位授予单位】：安徽理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TD325

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