ABSTRACT
The paper presents some results of settlement calculations performed after completion of a municipal solid waste landfill built on collapsible soils (sensitive soils). The results of the calculations are compared in the hypothesis of maintaining the conditions of natural moisture content of the collapsible soil and in the hypothesis of flooding the collapsible soil as a result of an imperfect sealing system. Starting from the requirements of the national legislation in force which imposes a slope of at least 1% of the drains that take the leachate from the landfill, after consuming the settling of the deposit, the position of the drain is analyzed to ensure the transport capacity of the leachate from the moment of opening the landfill and until its filling and consumption of the settlement under the load transmitted by the stored waste. Another aspect treated in the paper is related to the tensile effort that may occur in the geosynthetics from the landfill bottom system, as a result of the foundation soil settlement. The settlement calculations were performed according to the Romanian technical norms: “Technical norm for foundation of buildings on moisture – sensitive, collapsible soils, indicative NP 125: 2010” and “Technical norm regarding the determination of characteristic and calculation values of geotechnical parameters, indicative NP 122: 2010”, which are correlated to the Eurocode 7.
