中国岩溶2017，Vol.36Issue(6)：801-807,7.DOI:10.11932/karst20170603
黔中高原台面浅覆盖型岩溶塌陷分布及影响因素浅析
Brief analysis of distribution and influence factor of table-board shallow overburden type karst collapse in central Guizhou Plateau
摘要
Abstract
Qianzhong Plateau table is in the second topographic step of Guizhou Province,with an average al-titude of 800-1,600 m.The area is characterised by widely distributed soluble rocks,extremely developed karst landscapes,thin Quaternary soil layers and shallow groundwater with strong groundwater flow dynam-ics.Karst collapse is one of the major geological hazards in this area.In this paper,based on the statistical data of karst collapse in central Guizhou,the distribution and influencing factors of the karst collapse were analyzed.The results showed that 83.8% of the karst collapse were distributed in the peak valleys and karst valley,and 97.5% of karst collapse was distributed in clay with layer thickness of 1-10 m,and 83.7% of karst collapse is distributed in dolomite formation in Guanling Formation of the middle Triassic strata and Anshun Formation of the early and middle Triassic strata,and 73.3% of karst collapse is distributed along the fracture and fold zones,of which the groundwater is the most important trigger in the area.In terms of human factors,it is closely related to groundwater mining intensity and urbanization process,which occurs along with the urbanization process and the increase of pumping activities.关键词
黔中/浅覆盖型岩溶塌陷/自然影响因素/人为影响因素/岩溶塌陷防治和监测Key words
central Guizhou/shallow overburden type karst collapse/natural influencing factor/human influ-ence factor/prevention-control and monitoring of karst collapse分类
天文与地球科学引用本文复制引用
杨元丽,杨荣康,孟凡涛,王乾..黔中高原台面浅覆盖型岩溶塌陷分布及影响因素浅析[J].中国岩溶,2017,36(6):801-807,7.基金项目
中国地质调查局调查项目(12120114022401)黔中地区岩溶塌陷调查 （12120114022401）
贵州省地矿局(黔地矿科[2015]16号) （黔地矿科[2015]16号）
中国地质调查项目(DD20160254) （DD20160254）
