Geotechnical Aspects in the Planning of Radioactive by Product Landfill Facilities

Abstract

Radioactive by-products (MIR) can be produced from non-nuclear activities. It is crucial to ensure proper management of MIR from the moment they are created. The issue of permanent disposal in landfill facilities has recently been resolved. Design planning, land availability, financing, public acceptance, and other factors are essential considerations in this process. This paper provides an overview of the role and influence of geotechnical engineering in planning MIR landfill facilities. The methodology involves a literature study of regulations, research results, and recommendations from international organizations. The Government Regulation No. 52 of 2022 outlines the general landfill criteria. However, the regulation of MIR and Hazardous and Toxic Waste (B3) differs in concept and approach. Geotechnical studies the properties of rocks and soil. For MIR landfills, the characteristics of the MIR to be disposed of must be considered during planning and design. Physical, chemical, and activity concentration elements of the MIR affect the planning and design process. Geotechnical aspects, such as soil and rock type, groundwater level (MAT), pore water pressure, grain size, water content, density, shear strength, compression, permeability, and chemical testing, are necessary considerations. Several geotechnical tests are carried out to prevent infrastructure failure. The first step in planning and design is to understand the characteristics of the MIR material to be disposed of in landfills. Some geotechnical aspects include slope stability analysis, soil carrying capacity, and foundation suitability. Although the current regulations do not explicitly mention the geotechnical aspects that must be met, the general criteria for the acceptability of landfill locations are used in designing landfill designs. Keywords: radioactive by-products, planning, landfill, geotechnic