DOI: 10.1007/s11069-021-04738-1
论文题名: A multidisciplinary approach in cover-collapse sinkhole analyses in the mantle karst from Guangzhou City (SE China)
作者: Jia L. ; Meng Y. ; Li L. ; Yin R.
刊名: Natural Hazards
ISSN: 0921030X
出版年: 2021
卷: 108, 期: 1 起始页码: 1389
结束页码: 1410
语种: 英语
中文关键词: Cover-collapse sinkholes
; Geomorphological analyses
; Geophysical surveys
; Karst
英文摘要: Mantled karst is characterized by solution processes in underground conditions, where karst evidence can be masked. In mantled karst environments, cover-collapse sinkhole can be considered one of the most hazardous elements. This study seeks to develop a methodological framework utilizing different techniques and approaches to understand cover-collapse sinkhole genesis and its likely evolution. The study area is located in the Conghua district of Guangzhou city, Guangdong Province, in the south-eastern region of China. A mapping procedure was introduced to combine data from aerial photographs and intensive field investigations. In addition, data interpretations from borehole drilling activities and different geophysical approaches were performed to reconstruct the Quaternary deposit features, rock head morphology, and karst features. During these investigations, the detailed typology, morphometry, and chronology inventory of 49 cover-collapse sinkholes were analysed, and three karst fissure zones covered by Quaternary soil were observed. In the study, the hydrogeological data suggested that karst aquifer pumping triggered the drop in groundwater levels. Cover-collapse sinkholes might be ascribed to erosion of the soil layers due to the groundwater level decline. © 2021, The Author(s), under exclusive licence to Springer Nature B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/169102
Appears in Collections: 气候变化与战略
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作者单位: Faculty of Engineering, China University of Geosciences (Wuhan), Wuhan, Hubei 430074, China; Key Laboratory of Karst Dynamics, Institute of Karst Geology, CAGS, MNR & Guangxi, Guilin, 541004, China; Key Laboratory of Karst Collapse Prevention, CAGS, Guilin, 541004, China
Recommended Citation:
Jia L.,Meng Y.,Li L.,et al. A multidisciplinary approach in cover-collapse sinkhole analyses in the mantle karst from Guangzhou City (SE China)[J]. Natural Hazards,2021-01-01,108(1)