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The paper deals with the laboratory testing of the shear strength of the soil-geotextile interface. Two samples of soil were tested, i.e., coarse-grained poorly graded sand and fine poorly graded ash. The soils were reinforced using the Thrace WG80 black woven geotextile, which is suitable for road, railway, and geo-bag applications. The tests were executed using a large-size direct shear test apparatus. The shear strength of the interface was determined using the large-size direct shear test apparatus. The ground...

In the framework of reconstruction of the Old Bridge, two exploratory wells were made in the channel of the Danube River. The depth of the exploratory wells was up to 55 m below the modified terrain around the bridge pillars. The role of the exploratory wells was verifying the thickness of Quaternary sediments and simultaneously verifying Neogene soils properties located in the channel of the Danube River. The exploratory wells verified that the Neogene subsoil of the Danube River is predominantly made up of silty...