| 岩溶塌陷研究现状及趋势分析 |
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| 引用本文： | 蒙 彦,雷明堂.岩溶塌陷研究现状及趋势分析[J].中国岩溶,2019,38(3):411-417. |
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| 作者姓名： | 蒙 彦 雷明堂 |
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| 作者单位： | 1.中国地质大学（武汉），武汉 430074/中国地质科学院岩溶地质研究所/自然资源部、广西岩溶动力学重点实验室/中国地质调查局岩溶塌陷防治重点实验室，广西 桂林 541004 |
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| 基金项目： | 国家自然科学基金项目（41877300，41302255）；中国地质调查项目（1212011220192，DD20160254,DD20190266） |
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| 摘 要： | 为全面掌握当前国际岩溶塌陷研究动态，促进岩溶塌陷综合防治水平提升，重点从成因机制、识别评价和监测预警三个方面总结了当前国内外岩溶塌陷研究现状，以此为基础，综合运用文献和项目数据对国内外岩溶塌陷研究趋势进行了分析。结果显示:人类工程活动与岩溶环境相互作用关系是当前国际岩溶塌陷研究的热点;成因机理定量化、隐患识别快速化、监测预警精细化和风险防控时效化将是未来的重点攻关方向。
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| 关 键 词： | 岩溶塌陷 现状 趋势 大数据分析 |
Analysis of situation and trend of sinkhole collapse |
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| MENG Yan and LEI Mingtang.Analysis of situation and trend of sinkhole collapse[J].Carsologica Sinica,2019,38(3):411-417. |
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| Authors: | MENG Yan and LEI Mingtang |
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| Institution: | 1.China University of Geosciences(Wuhan), Wuhan, Hubei 430074, China/Institute of Karst Geology, CAGS/Key Laboratory of Karst Dynamics, MNR & GZAR/Key Larboratory of Karst Collapse Prevention,CGS, Guilin, Guangxi 541004, China2.Institute of Karst Geology, CAGS/Key Laboratory of Karst Dynamics, MNR & GZAR/Key Larboratory of Karst Collapse Prevention,CGS, Guilin, Guangxi 541004, China |
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| Abstract: | The karst area is more than 3.4 million km2 in China, accounting for about 36% of the country’s land area, in which sinkhole collapse and associated disaster frequently occur. A comprehensive and systematic analysis of current situation and research trend of sinkhole collapse at home and abroad is of great significance to accurately grasp the current hot topics, and to carry out scientific and effective work towards the disaster prevention and reduction. In this paper, we analyzed current research status and trend in the field of sinkhole collapse at home and abroad using big data tool on three aspects, namely, genesis mechanism, identification and evaluation, as well as monitoring and early warning, based on the CNKI database, WOS database and China karst collapse investigation and research project database. The results show that in the past five years, the international research hotspot areas in relation to sinkhole collapse are mainly concentrated in Italy, the United States, China and Spain, among them Italy is the most concerned. Foreign countries pay more attention to the erosion and corrosion of groundwater to the genetic mechanism of sinkhole collapse, and the main factors considered include rainstorm, pumping, surface runoff and sewer leakage. Among them the use of advanced equipment such as centrifuge to study the causes of karst collapse is more distinctive. Domestic studies on the causes of karst collapse can be summarized into 10 models, including gravity, erosion, suction corrosion, blasting, vibration, load, dissolution, root corrosion, pressure difference and etc. Meanwhile, mechanical and mathematical methods, such as soil arch theory and numerical simulation, have been used to gradually improve the quantification study. In terms of early identification and evaluation, remote sensing and aerial geophysical exploration methods, such as geological radar, drilling radar and Light Detection and Ranging (LiDAR), have been widely used at home and abroad. In respect of the sinkhole monitoring and early-warning, geological radars are frequently used to scan regularly in foreign countries, while in China, groundwater dynamic and chemical conditions are mainly monitored. There have been successful cases at home and abroad such as optical fiber sensing, aerial geophysical prospecting and other new technologies and methods. In terms of research trends, the current international research hotspot of sinkhole collapse mainly focuses on the interaction between human engineering activities and karst environment, which is reflected in forecasting, risk management and emergency response. In terms of project support, the largest proportion of project financial support for sinkhole collapse research mainly comes from the National Natural Science Foundation of China (NSFC) and Geological Survey Project (GSP). At present, the NSFC accounts for the largest proportion at 43%, and GSP account for 39%, showing an increasing trend in GSP. To sum up, we should combine with human engineering activities and ecological environmental protection of the study of the karst collapse closely, pay close attention to hotspots area, and focus on scientific and technological research work in the aspects of quantitative genetic mechanisms, rapid identification of hidden hazards, fine monitoring and early warning, and aging of risk prevention and control. |
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| Keywords: | sinkhole collapse current situation trend big data analysis |
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