联合SBAS与IPTA技术的矿区开采沉陷监测与分析

Monitoring and Analysis of Subsidence in Mining Areas Combined with SBAS and IPTA Technologies

黄陵一号煤矿属于大型煤矿,开采历史悠久,大量开采引发地表形变严重。本文基于2018年8月—2019年4月期间Sentinel-1A数据,将SBAS与IPTA两种技术联合应用在黄陵一号矿区开采沉陷监测中,获取地表沉降信息,最终从剖线、等值线、特征点方面详细分析了沉降特征。结果表明:研究区最大年平均沉降速率为-325 mm/a,最大累积沉降量为-198 mm;随着时间推移、工作面推进,时序累积沉降量不断增大,沉降影响范围逐渐扩大;采用该技术识别了沉降位置以及沉降影响范围,可为当地地面沉降治理与预防提供参考。

Huangling No.1 Coal Mine is a large-scale coal mine with a long history of mining.Large-scale mining has caused serious surface deformation.Based on Sentinel-1A data from August 2018 to April 2019,this paper applies SBAS and IPTA technologies to the mining subsidence monitoring of Huangling No.1 mining area to obtain surface subsidence information,and finally analyze the surface subsidence characteristics in detail from the profile lines,contour lines and feature points.The results show that the maximum annual average subsidence rate in the study area is-325 mm/a,and the maximum cumulative subsidence is-198 mm;with the passage of time and the advancement of the working face,the cumulative subsidence in time series continues to increase,and the range of subsidence is gradually expanded;this technology identifies the subsidence location and the subsidence influence range,which can provide reference for local land subsidence control and prevention.