... tunnel jovan br mechanism determination Abstract Modern tunnel engineering is a complex task. From planning, design to construction, tunnels represent great challenge for the engineers and everyone involved in the projects. Nowadays the „classic“ approach in design and tunnel construction...

... (thirteen) clay-filled bedding-plane faults crossing the cavern axis. The other was the Channel Tunnel(s) between England and France driven by TBM in chalk marl with UCS of 4 to 7MPa. This rock was strong enough to be significantly jointed and cause serious over-break due to low Jr and high Jn especially...

... restoration, cracking on walls and signs of foundation settlements started to appear. There were two reasons of settlements: collapse of loess soil due to increased water content, and vertical movement of the soil in the vicinity of old tunnels in the foot of the hill. In 2008 a remediation of foundation soil...

...”. macedonian association geotechnic isrm united states government reservoir characterization jovan br sustainability asia government geotechnical engineering construction tunnel foundation design upstream oil & gas europe government symposium software urban environment Fifth symposium...

... Abstract Predicting the behavior of rock mass during tunnel construction is a complex engineering problem, and it is important to conduct research to the extent that it is sufficient to define the characteristics of the terrain composition, before, during and after the construction...

... Abstract Argillaceous swelling rocks are generally unsaturated. Partial rock desaturation due to tunnel ventilation is a phenomenon that inevitably occurs during construction of underground structures. The characteristics of the unsaturated zone must be known in order to predict the swelling...

... Abstract During the construction of West tube of 7,9 km Karavanke motorway tunnel in the 1980s, the builders experienced frequent water intrusions, which caused general tunnel instability. The most prominent cases occurred at chainages cca 700 m where tunnel nearly collapsed and at cca 3000m...

... iraq government designer jovan br upstream oil & gas reservoir geomechanics geotechnic isrm limestone macedonian association tunnel symposium asia government reservoir characterization zagro main fault investigation curved invert excavation calculation displacement figure 6...

... compressive strength uniaxial compressive strength sample specimen laz tunnel serbia government reservoir characterization furnace jovan br fragment europe government macedonian association geotechnic isrm tunnel reservoir geomechanics srp en 1926 symposium belgrade...

... Abstract In the construction of tunnels in low-bearing and water-saturated rock masses, grouting is often used as a ground improvement technique. Improvement of rock mass properties prior to excavation is of great importance for excavation stability, reduction of convergence of the excavated...