A Trial Section with GeocompositePrior commencement of the works on the trial section with the use of geocomposites, with replacement ofmaterial, it is mandatory to take the following preliminary steps:------1. Preparation of the foundation soil for laying geocomposite------ removal of topsoil in the designed thickness (30 cm);taking soil samples to determine the characteristics of the foundation soil on which the geotextilewill be laid (this is important so that we know in the future which thickness of the replacementlayer to apply, i.e. whether replacement is needed at all);excavation to the planned elevation of material replacement, i.e. 20 to 30 cm below the designedelevation of subsoil (it is important to note that material replacement should not be done in a layerthickness of less than 20 cm, given that the maximum grain size cannot be greater than 2/3 of thelayer thickness):ensuring flat base surface for laying geocomposite (it is important that the surface is as smooth aspossible and without the presence of roots, that there are no large depressions that might retainatmospheric water);ensuring continuous transverse slope (> 1.5%) in order to divert any atmospheric water to the lowerside of the terrain;excavation of a small drainage trench on the lower side for reception of surface water and ensuringthat the collected water is taken from the works zone (to the recipient, to the absorption well, etc.);checking whether there is access for mechanization to the area on which the geocomposite will belaid (providing a ramp for mechanization and trucks from the access road to the segment where thetrial section is to be performed).------2. Material preparation ------ the selection of materials in the borrow pit (Mili éevci mine) is very important, considering thatlarge pieces of rock mass, boulders and the like should not arrive at the installation site;deposition of the material at the construction site (this is very important, given that the truck cyclefrom the mine to the installation site is about 1 hour and 20 minutes, which would drastically slowdown the construction of the embankment, and it is recommended that the material to be previouslytemporary disposed directly along the route, in order to be installed quickly, and in that case therewill be no need to hire more than 3 trucks, so the dumping itself and the construction will beperformed significantly faster);sampling of materials from the temporary stock pile (it should be mandatory, in order to concludea complete picture of the replacement of materials, and to submit the complete documentation tothe Designer as a supporting document, i.e. as an argument for replacement of materials).------3. Resources------it is necessary to have a person who will be permanently on the construction site and follow theseinstructions.it is necessary to provide 4-5 help workers who will lay the geocomposite (since the weight of theroll is about 191 kg)it is necessary to deliver to the construction site a sufficient number of rolls for installation(therefore, it is necessary to organize some transportation vehicle - small truck is enough, since thewidth of a single roll is 4.75 m);sufficient number of trucks for embankment is 3 (is material is previously temporary disposed)spreading and installation of embankment material over geocomposite is done with a bulldozer(more economical, faster) or excavator (more suitable if there are a large number of big aggregateparticles due to the stacking of materials and to avoiding possible segregation of material which ishighly dangerous for achieving required results):rolling is done exclusively with smooth rollers according to the technology proposed in the MethodStatement below.