Assessment of tunnel erosion in Cheshmeh Lee village in Golestan province

One of the types of erosions is tunnel erosion, which has been less studied than surface erosion due to its complex formation and measurement problems. Tunnel erosion is one of the water erosions whose occurrence causes significant changes in the earth's landscape and environmental degradation. Cheshmeh Lee village is located 45 km northeast of Kalaleh and 27 km southwest of Maraveh Tappeh in Golestan province. Geoelectric studies in the area of Cheshmehli village with the aim of studying sinkholes, was considered. A total of four profiles named AB, CD, EF and GH were designed in this village, after harvesting the field data, the data obtained from the geoelectric studies were processed. The results of studies performed as geoelectric sections for resistivity data using data inversion using specialized Res2Dinv software. In general, the values of resistivity for the studied profiles showed the trend of changes in the amount of resistivity, mainly affected by the loess units of the region. However, the trend of change has increased or decreased in some parts. Increasing the amount of resistivity is mainly associated with stone units.