Semi-real time systems for subsidence monitoring in areas affected by underground mining:the example of the Nuraxi-Figus coal district(Sardinia,Italy)
作者机构：Department of Earth SciencesEnvironment and ResourcesUniversity of NaplesFedericoⅡ80126 NaplesItaly Department of Earth SciencesNatural History MuseumLondon SW75BDUK Sardinia Region Company Carbosulcis S.P.A.09010 GonnesaCIItaly
出 版 物：《International Journal of Coal Science & Technology》 (国际煤炭科学技术学报（英文）)
年 卷 期：2022年第9卷第6期
页 面：112-126页
核心收录：
学科分类：081901[工学-采矿工程] 0819[工学-矿业工程] 08[工学]
基 金：funded by the P.h.D.scholarship "P.O.R.Dottorati innovativi a caratterizzazione industriale 2014-2020" Scientific Responsible Prof.Nicola Mondillo
主 题：Mining monitoring A-DInSAR Numerical modeling Subsidence Underground mining
摘 要：Underground mining can produce subsidence,which can be coincident with mining activities or delayed in response to the time-dependent deformation of the ***,in these cases,it is essential to effectively monitor the soil deformations at different times during and after mining *** the present work,an integrated approach based on geotechnical numeri-cal modeling and Advanced Differential Interferometric Synthetic Aperture Radar(A-DInSAR)method has been applied to detect,study and monitor the subsidence related to mining activity in the Nuraxi Figus coal district(Sardinia,Italy).Two datasets of high-resolution COSMO-Skymed images were acquired,respectively in two covering periods:from 2011 and 2014,and from 2013 to ***-DInSAR results show that the predominant displacement rates are located in correspond-ence with the *** cumulated satellite-based LoS displacements vary in the first period between-130 and+28 mm and-293 and+28.4 mm,while,during the second period between-6.9 and+1.6 mm and-8.72 and+4.33 mm in ascend-ing and descending geometries,*** geotechnical numerical model allowed to obtain a value for the maximum *** using the vertical and horizontal components it was possible to reconstruct the kinematics of the deformation considering three phases:pre-mining,syn-mining,and post-mining *** temporal evolution of displacements started during the mining extraction in 2011,achieved the major values in correspondence of post-mining operations,during the period from 2013 to 2014 and continued slowly until *** near real-time monitoring system applied in this study proved to be very useful for detecting subsidence during the mining activity and the post-mining period.
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