Goaf Site Stability Detection in the Overlap Area of Coal Mining Subsidence and Urban Construction

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-03-27 DOI:10.1155/2024/5375733

Guangli Dai, Hongjia Li, Chao Liu, Huaizhan Li, Youwei Chang, Yu Chen, Yandong Gao, Yafei Yuan, Wenqi Huo

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Abstract

The contradiction between coal mining and urban construction in coal resource-based cities is prominent, which greatly limits the sustainable development of these cities. Pan’an New City is a key mining-induced subsidence area in Xuzhou City, which presents significant challenges to the construction of the new city. Therefore, in order to ensure the safe construction of Pan’an New City, the residual deformation and stability of the goaf sites must be monitored and evaluated. Under such background, based on the measured leveling data of the mining-induced surface deformation in a coal mine near Pan’an New City, this paper first analyzed the accuracy of InSAR monitoring of surface deformation in coal mining subsidence area by SBAS-InSAR technology. Then, the SBAS-InSAR technology was used to monitor the surface subsidence rate and cumulative subsidence in the coal mining subsidence area of Pan’an New City, based on the 29 scene SAR data during Dec. 2020 and Jan. 2022. The results showed that the goaf site in the north and northwest of Pan’an New City is unstable, while the other areas are stable. Finally, according to the monitoring results, the suggestions have been put forward for the construction of Pan’an New Town on the goaf site. The research results have important theoretical and practical significance for the reuse of goaf sites in Pan’an New City and similar areas in Xuzhou.

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采煤沉陷与城市建设重叠区域的沼泽地稳定性探测

煤炭资源型城市煤炭开采与城市建设的矛盾突出，极大地制约了这些城市的可持续发展。潘安新城是徐州市重点矿山沉陷区，给新城建设带来了巨大挑战。因此，为了确保潘安新城的安全建设，必须对围岩场地的残余变形和稳定性进行监测和评估。在此背景下，本文基于磐安新城附近某煤矿采空区地表变形的实测平差数据，首先分析了 SBAS-InSAR 技术对采煤沉陷区地表变形的 InSAR 监测精度。然后，基于 2020 年 12 月和 2022 年 1 月的 29 个场景 SAR 数据，利用 SBAS-InSAR 技术监测了磐安新城采煤沉陷区的地表沉降速率和累计沉降量。结果表明，磐安新城北部和西北部的鹅卵石地块不稳定，其他区域稳定。最后，根据监测结果，对磐安新城鹅卵石场地建设提出了建议。研究成果对潘安新城及徐州类似地区的鹅卵石场地再利用具有重要的理论和实践意义。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.