GEOTECHNICAL CHARACTERISTICS OF EMBANKMENT ALONG THE RAILWAY ROUTE OF ENTITY BORDER OF FEDERATION OF BIH – MAGLAJ, SECTION km 103+500 MAGLAJ

Abstract

Railway route from entity border to Maglaj is on corridor V of railways that connects Adriatic sea
with European Union countries. More precisely, it is on the railway Samac – Sarajevo that was built
during the fifties. From Doboj to Zenica exist two tracks, one built in 1947. and the other thirty years
later. In time, the railway worn out, since it was not maintained properly during its exploitation, so
allowed train speed is 40 km/h. Reconstruction of railway had previously started on sections with aim
to achieve the level of train speed to 120 km/h.
Terrain research in order to overview quality of material on which the railway is laid, and immediate
environment that has effect on railway route, were conducted by sections, from which section km
103+500 – Maglaj is one of the most important considering characteristics of the terrain on which the
route passes. Research along railway route were conducted by using research trial pits from both sides
and in between tracks, to depth of entry in basic soil. Depth of research works is different for old and
new track, considering the way of construction in time period of 30 years. Beyond narrow corridor of
railway route research of characteristics of the terrain were not conducted, because of inability to
access due to mining. Results of terrain and laboratory tests showed geotechnical characteristics of
material, based on which were given quality improvement measures for deposited materials, and base
for reconstruction of railway.