高密度电法在草炭土分布特征调查中的应用

摘要

In order to study the basic information of turfy soil wetland,and to obtain its distribution character-istics,the authors chose the turfy soil wetland in eastern Jilin Province as the research site.The difference of detec-tion results under three devices are compared using high-density resistivity method, and then compared with the known data of the trench.It shows that Winner--Schellenberg device is the most reasonable and most reliable de-vice.This device was subsequently used in other turfy soil areas to obtain the resistance of turfy soil and its distri-bution.The apparent resistivity of peat soil is 50~300 Ω· m at depths of 1.2~3.9 m.In the inversion images, the turfy soil is characterized by low resistance,with obvious layers and electricity boundary.%为了更好的研究草炭土湿地基本信息,获取草炭土分布特征,选择吉林省东部沼泽草炭土湿地为研究对象,运用高密度电阻率法,对比不同装置下探测结果的差异,再与已知的探槽资料做对比,得出温纳—施伦贝格装置为最可靠、最合理的探测装置.再将该装置运用到其他草炭土地区,得出对草炭土湿地的探测为浅层地质问题,草炭土的视电阻率为50~300 Ω· m,深度为1.2~3.9 m,在反演图像中表现为低阻体部分,各地层间层状结构明显,电性界限分明.