摘要
为查明唐山黄庄岩溶塌陷形成地质条件与机理,文章从该区岩溶塌陷的地质、地层岩性、水文地质特征对岩溶塌陷的影响等方面入手,研究岩溶地面塌陷的成因诱发条件,利用综合物探方法、钻探及地下水长期观测等技术手段,采用二维高密度测网数据,进行三维高密度数据处理和三维结果多角度分析,研究岩溶塌陷区地下三维空间分布形态、水流运移通道和基岩分布等。研究区岩溶地面塌陷应属于渗透潜蚀作用,塌陷坑分布于地下水的降落漏斗范围内和流水通道区域,特别集中于地下水主要径流方向和水交替强烈的地下水联系密切地段,雨季水气压力变化极为频繁、剧烈,加剧了土洞形成。
In order to evaluate the geological conditions and the mechanisms of karst collapse in the Tangshan area,the impacts of karst geology,lithology and hydrogeological conditions on karst collapse in the region were evaluated using integrated geophysics means,borehole drilling technology,groundwater long-term ob-servation,etc.Geological conditions,mechanisms of surface karst collapse,collapse forecast and develop-ment trends were investigated using two-dimensional and three-dimensional Electrical Resistivity Tomo-graphy （ERT）data.The distribution of karst collapse on a three-dimensional scale,the underground flow channel and the basement distribution were also evaluated.It is included that karst collapse mainly takes place in areas with extensive cone of depression zones and underground flow channels,the locations in which main flow channel and in particular with frequent interaction with surface water,which often occurs in the rainy season.The study of karst collapse using three-dimensional ERT data and three-dimensional inversion technology help characterize the karst development and the quaternary aquifer.
出处
《中国岩溶》
CAS
CSCD
2014年第3期299-307,共9页
Carsologica Sinica
关键词
岩溶塌陷
三维反演
水流运移通道
高密度电法
karst collapse
three-dimensional inversion
Electrical Resistivity Tomography
