Karabük Sanayi Bölgesi Heyelanında Güvenliğin Sağlanması

Abstract

This study is about the investigation of the landslide which occurred at the Organized Industrial Zone located in Zopran village / Karabük. Because the boundary of the landslide was immediately adjacent to the Transformer Substation and Overhead Power Line, urgent solutions were required. The reasons for the occurrence of landslide were discussed and the proposed solutions were also presented in this paper. The landslide was stated to move twice in different times. The width and length of the landslide were almost 80 m and 120 m, respectively. While the height of the main scarp was 9-11 m, rock outcrop was not observed at the main scarp. It was also observed that there were some other secondary scarps in the moving land. The soil consists of uncemented loose silty and sandy formations containing low plasticity clay bands. There were some small puddles and the saturated soil near the foothills was observed to be very soft. During the investigation of the source of the water, it was found out that the wastewater of Organized Industrial Zone was transferred by using concrete pipes for a long time. It was, hence, concluded that the main factor to trigger the landslide was the saturation of the soil because of the leakage from the pipes. Physical and mechanical laboratory tests were conducted on the undisturbed and disturbed soils to understand the nature of the soils in the study area. After the limit equilibrium analysis, it was shown that piled wall and berm solution is enough to have a safe design.