多源数据下老采空区上方地表残余变形规律分析

发布时间：2018-02-26 07:23

本文关键词： 老采空区地表残余变形 D-InSAR 移动变形监测 GM( )　出处：《测绘通报》2017年02期 　论文类型：期刊论文

【摘要】：为动态分析老采空区上方地表残余变形规律,本文以淮南矿区新庄孜矿新淮工厂为例,综合运用D-InSAR遥感解译反演与地表移动变形监测两种方法分析其残余变形规律,并以遥感解译数据与实测数据为基础资料,采用GM(1,1)模型进行地表残余变形规律的动态预测。D-InSAR存档数据反演结果显示2009年1月—2011年12月期间地表最大下沉量为100 mm,最大下沉速率为2.5 mm/d;地表移动变形监测结果显示2012年1月—2013年12月期间地表最大下沉量为55 mm,最大下沉速率为0.45 mm/d;GM(1,1)模型预测结果显示地表监测点下沉速度小于1.67 mm/d,地表处于残余衰退阶段;同时模型相关系数R20.95,预测结果和曲线拟合精度可靠。研究成果可为煤矿老采空区上方建筑地基残余变形监测工作提供参考。
[Abstract]:In order to dynamically analyze the law of surface residual deformation above the old goaf, this paper takes Xinhuai factory of Xinzhuangzi Mine in Huainan mining area as an example, synthetically uses D-InSAR remote sensing interpretation inversion and surface movement deformation monitoring to analyze its residual deformation law. And based on the data interpreted by remote sensing and measured data, Dynamic prediction of residual deformation law of ground surface using GMGM1 / 1) model. The inversion results of archived data of D-InSAR show that the maximum subsidence is 100mm and the maximum subsidence rate is 2.5mm / d during the period from January 2009 to December 2011, and the monitoring results of surface movement deformation show that the maximum subsidence is 100 mm and the maximum subsidence rate is 2.5 mm / d between January 2009 and December 2011. From January 2012 to December 2013, the maximum subsidence is 55 mm and the maximum subsidence rate is 0.45 mm / d. The predicted results show that the subsidence velocity of the surface monitoring point is less than 1.67 mm / d, and the surface is in the stage of residual recession. At the same time, the correlation coefficient of the model is R 20.95, and the prediction results and curve fitting accuracy are reliable. The research results can provide a reference for monitoring the residual deformation of building foundation above the old goaf of coal mine.
【作者单位】：安徽理工大学测绘学院;
【基金】：国家自然科学基金(41472323) 安徽省对外科技合作计划项目(1503062020)
【分类号】：TD17

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