中国有色金属学报(英文版)
中國有色金屬學報(英文版)
중국유색금속학보(영문판)
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
2014年
4期
1248-1254
,共7页
阎跃观%戴华阳%葛林林%郭俊廷%Alex Hay-Man NG%李晓静
閻躍觀%戴華暘%葛林林%郭俊廷%Alex Hay-Man NG%李曉靜
염약관%대화양%갈림림%곽준정%Alex Hay-Man NG%리효정
DInSAR监测%数值模拟%动态地表移动变形%补充
DInSAR鑑測%數值模擬%動態地錶移動變形%補充
DInSAR감측%수치모의%동태지표이동변형%보충
DInSAR monitoring%numerical simulation%dynamic surface deformation%supplement
合成孔径雷达干涉测量(DInSAR)技术是监测动态地表沉陷的新方法,能够大范围地监测地表下沉盆地的动态演化过程,可以较好地反映各阶段的地表下沉形态。但是受到噪声等因素的影响,基于DInSAR数据计算的倾斜、水平变形等曲线规律性较差,与实际偏差较大,而倾斜、水平变形又是研究地表受护对象是否安全的重要指标。基于DInSAR监测数据,采用数值模拟方法,对澳大利亚West Cliff煤矿长壁工作面32开采动态地表移动变形进行分析研究。结果表明,数值模拟得到的下沉曲线与DInSAR实测数据比较吻合,相关系数可达95%以上,且数值模拟方法求算的地表倾斜、曲率和水平变形与理论形态一致。因此,进行矿区地表及其附属建(构)筑物受采动影响分析时,应以DInSAR实测数据为基础确定模型参数,结合数值模拟方法揭示地表动态其他移动变形值的分布规律。研究表明,该方法具有良好的适用性,可为类似的情况提供参考。
閤成孔徑雷達榦涉測量(DInSAR)技術是鑑測動態地錶沉陷的新方法,能夠大範圍地鑑測地錶下沉盆地的動態縯化過程,可以較好地反映各階段的地錶下沉形態。但是受到譟聲等因素的影響,基于DInSAR數據計算的傾斜、水平變形等麯線規律性較差,與實際偏差較大,而傾斜、水平變形又是研究地錶受護對象是否安全的重要指標。基于DInSAR鑑測數據,採用數值模擬方法,對澳大利亞West Cliff煤礦長壁工作麵32開採動態地錶移動變形進行分析研究。結果錶明,數值模擬得到的下沉麯線與DInSAR實測數據比較吻閤,相關繫數可達95%以上,且數值模擬方法求算的地錶傾斜、麯率和水平變形與理論形態一緻。因此,進行礦區地錶及其附屬建(構)築物受採動影響分析時,應以DInSAR實測數據為基礎確定模型參數,結閤數值模擬方法揭示地錶動態其他移動變形值的分佈規律。研究錶明,該方法具有良好的適用性,可為類似的情況提供參攷。
합성공경뢰체간섭측량(DInSAR)기술시감측동태지표침함적신방법,능구대범위지감측지표하침분지적동태연화과정,가이교호지반영각계단적지표하침형태。단시수도조성등인소적영향,기우DInSAR수거계산적경사、수평변형등곡선규률성교차,여실제편차교대,이경사、수평변형우시연구지표수호대상시부안전적중요지표。기우DInSAR감측수거,채용수치모의방법,대오대리아West Cliff매광장벽공작면32개채동태지표이동변형진행분석연구。결과표명,수치모의득도적하침곡선여DInSAR실측수거비교문합,상관계수가체95%이상,차수치모의방법구산적지표경사、곡솔화수평변형여이론형태일치。인차,진행광구지표급기부속건(구)축물수채동영향분석시,응이DInSAR실측수거위기출학정모형삼수,결합수치모의방법게시지표동태기타이동변형치적분포규률。연구표명,해방법구유량호적괄용성,가위유사적정황제공삼고。
Differential interferometric synthetic aperture radar (DInSAR) technology is a new method to monitor the dynamic surface subsidence. It can monitor the large scope of dynamic deformation process of surface subsidence basin and better reflect the surface subsidence form in different stages. But under the influence of factors such as noise and other factors, the tilt and horizontal deformation curves regularity calculated by DInSAR data are poorer and the actual deviation is larger. The tilt and horizontal deformations are the important indices for the safety of surface objects protection. Numerical simulation method was used to study the dynamic deformation of LW32 of West Cliff colliery in Australia based on the DInSAR monitoring data. The result indicates that the subsidence curves of two methods fit well and the correlation coefficient is more than 95%. The other deformations calculated by numerical simulation results are close to the theory form. Therefore, considering the influence, the surface and its subsidiary structures and buildings due to mining, the numerical simulation method based on the DInSAR data can reveal the distribution rules of the surface dynamic deformation values and supply the shortcomings of DInSAR technology. The research shows that the method has good applicability and can provide reference for similar situation.