https://etalpykla.vilniustech.lt/handle/123456789/160141 2026-04-27T11:51:44Z 2026-04-27T11:51:44Z Forsman, Juha Dettenborn, Taavi Skepast, Peeter Mets, Mait Olep, Mattias Ellmann, Artu Vallas, Ivo Tõnts, Taavi Kontson, Karli https://etalpykla.vilniustech.lt/handle/123456789/160212 2026-04-10T08:21:32Z 2016-01-01T00:00:00Z

Road Embankment Test Sections over Soft Peat Layer, Võõbu, Estonia Forsman, Juha; Dettenborn, Taavi; Skepast, Peeter; Mets, Mait; Olep, Mattias; Ellmann, Artu; Vallas, Ivo; Tõnts, Taavi; Kontson, Karli Various road embankment reinforcements on over a 2 to 4 meter thick peat deposit have been constructed in summer to autumn 2015 in the area of Kose-Võõbu in the northern part of Estonia. The test sections consist of five different reinforced road embankments: one layer of georeinforcement, two layers of georeinforcements, geocell mattress, light weight aggregate (LWA) and expanded polystyrene (EPS) light weight embankment structures with georeinforcement. An additional test section is a mass replacement. To accelerate the consolidation of the peat, reinforced test sections are loaded with surcharge. This paper presents information about peat field and laboratory tests, geodetic monitoring, settlement predictions and preliminary evaluation of the structures. The settlements of each test section are precisely measured with settlement plates installed over the peat layer, over e.g. EPS and LWA layers and surface dressing (bituminous layer). In addition, the surface treatment layer has been mapped by high-resolution laser scanning, also after surcharge removal the scanning will be conducted to obtain settlement profile due the surcharge. The intent of this test construction is to validate technical and economic feasibility of different reinforcement methods over designed road alignment (road E263).

2016-01-01T00:00:00Z Romāns Arhipenko https://etalpykla.vilniustech.lt/handle/123456789/160211 2026-04-10T08:02:58Z 2016-01-01T00:00:00Z

Additional Geotechnical Investigation Task for Slope Stabilization Project at Regional Road P130 Līgas – Kandava – Veģi, km 14.00 – 14.20, Latvia Romāns Arhipenko Slope stabilization is quite rare geotechnical design task in Latvia. Therefore, no much practical experience is accumulated in geotechnical society hands within this field. The problem solving process is unroutine and shall be based on engineering judgement, made by person responsible for design. The case study of the particular creeping slope stabilization problem contains the history of it’s evolution and the planned geotechnical investigation methods which will be implemented for additional geotechnical investigations. In author’s opinion the experience described in this article highlights the importance of geotechnical work programme elaboration by the person responsible for the design structural solution, and the necessity of supervision during geotechnical investigation process.

2016-01-01T00:00:00Z Buca, Rafał Mitrosz, Oskar https://etalpykla.vilniustech.lt/handle/123456789/160210 2026-04-10T07:49:12Z 2016-01-01T00:00:00Z

Complex Geotechnical Engineering for Port of Gdansk Development – Gateway to Central-Eastern Europe Buca, Rafał; Mitrosz, Oskar Port of Gdansk development strategy 2027 is to become leading European hub in the Baltic Sea and assumes i.a. improvement of inland road and rail accessibility, increase of the port capacity for container throughput and intermodal transport, increase port’s throughput capacity for goods other than containerized cargo. The paper presents several complex geotechnical design & build tasks that have already been done for port’s infrastructure and superstructure development and extension i.a. road tunnel under Vistula river linking port with city industrial area or Deepwater Container Terminal Gdansk with a new berth and container stacking yards. The paper discusses multiple geotechnical challenges and alternative soil treatment methods. The authors share conclussions and recommendations of successful application of various ground improvement technologies.

2016-01-01T00:00:00Z Gegieckas, Saulius https://etalpykla.vilniustech.lt/handle/123456789/160209 2026-04-10T07:24:48Z 2016-01-01T00:00:00Z

Construction of “Panemunė Bypass” Highway in the Nemunas River Delta. Problems of 2003–2015 Roadbed Exploration, Design, and Construction Gegieckas, Saulius In the Republic of Lithuania, there had been almost no experience in the road (roadbed) construction prior to the Panemunė bypass in terms of very complex geological, geotechnical and paleogeomorphological territories. All the roads constructed in previous decades in the Nemunas River Delta were built practically without special geotechnical and geological research and the resulting problems were solved either on the spot during construction or rectified later upon the emergence of reclaimed deformation. The article analyzes the whole process of the geological and geotechnical research during the bypass construction – from the first exploration work and designing to construction completion. The geological and geotechnical research stages are described; methods, research conditions, mistakes made, and recommendations for geotechnical investigations under similar conditions in the future are given. At the same time, the article contains the detailed geological and geotechnical conditions of the bypass, roadbed construction problems, forecasts of the roadbed seating during the design and construction with the assumption of additional factors. The article provides and analyses the actual results of the bed deposition monitoring and further forecast of the bed deposition.

2016-01-01T00:00:00Z