凤冈新建乡岩溶塌陷预测  

Prediction of Karst Collapse in Xinjian,Fenggang County

作　　者：杨洋[1] 赵云龙[2] 丁坚平[1] 

机构地区：[1]贵州大学资源与环境工程学院,贵州贵阳550025 [2]贵州省地矿局第二工程勘察院,贵州遵义563000

出　　处：《贵州大学学报（自然科学版）》2015年第6期53-56,共4页Journal of Guizhou University:Natural Sciences

基　　金：贵州省重大科研项目(黔科合重大专项字[2011]6004)

摘　　要：通过实地调查及高密度电阻率法探测等手段对新建乡塌陷现状的分布特征作了分析后得出,研究区地下管道(地下河)发育方向及塌陷易发地段受断裂构造控制,呈北东向分布,地下河顶部的垂直管道(裂缝)与土层接触部位,受地下水位升降变化及土的力学性质状态改变产生致塌作用,引发岩溶塌陷地质灾害。根据现状塌陷的水文地质特征结合物探成果资料,对研究区的岩溶塌陷进行了预测,为新城镇规划防灾减灾提供了依据。The distribution characteristics of collapse were analyzed through the means of the study area ; such as data collection and multi-electrode resistivity method. The results show general trend of prediction tubular karst passage is NE trending, and faulted structures control the development of tubular karst passage. The vertical pipe at the top of the underground river （crack） and the contact part of the soil layer are affected by collapse force, which is caused by the change of the water level fluctuation and the mechanical properties of the soil, and cause karst collapse. Based on the hydrogeological characteristics of the present situation and the results of geophysical exploration, the karst collapse in the study area can be predicted. And it provides the basis for the new town planning and disaster prevention and reduction.

关 键 词：岩溶塌陷 高密度电阻率法 地灾预测 贵州凤冈 

分 类 号：P641[天文地球—地质矿产勘探]