Saobraćajni institut CIP :: Road Tunnels http://www.sicip.co.rs/en/activity/Technical-documentation/civil-engineering-designs/Tunnels/Road-Tunnels/rss.html Story list en http://www.sicip.co.rs/thumbnail/2.JPG?thumbId=1461&fileSize=8494&contentType=image/jpeg&lastModified=1396955660000 Saobraćajni institut CIP :: Road Tunnels http://www.sicip.co.rs/en/activity/Technical-documentation/civil-engineering-designs/Tunnels/Road-Tunnels/rss.html Reconstruction and rehabilitation of 13 tunnels on the Niš-Pirot M1.12 main road http://www.sicip.co.rs/en/activity/Technical-documentation/civil-engineering-designs/Tunnels/Road-Tunnels/story/873/Reconstruction+and+rehabilitation+of+13+tunnels+on+the+Ni%C5%A1-Pirot+M1.12+main+road.html Since the road alignment is practically cut into the limestone rock, 13 tunnels having the total length of 1045 m were constructed. However, all 13 tunnels were considered as bottle necks since they were constructed with small clearances, 6.5 m wide pavement and height of 4.0 m. Since majority of the tunnels lacked in lining system, water of different intensity was identified on the tunnel walls.

Since the road alignment is practically cut into the limestone rock, 13 tunnels having the total length of 1045 m were constructed. However, all 13 tunnels were considered as bottle necks since they were constructed with small clearances, 6.5 m wide pavement and height of 4.0 m. Since majority of the tunnels lacked in lining system, water of different intensity was identified on the tunnel walls.

During 2005 and 2006 works were performed on rehabilitation of the said tunnels thus resulting in increased clearance of 4.50 m and pavement width of 7.10 m. Waterproofing and drainage works were also carried out in all tunnels. The waterproofing system was protected by constructing the 30 cm thick reinforced concrete lining. The accumulated water was routed through the drain pipe, 160 mm in diameter, placed on the either tunnel side. The executed works have significantly affected the level of services and safety of traffic participants.

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Sun, 14 Sep 2014 15:28:10 +0100 Road Tunnels http://www.sicip.co.rs/en/activity/Technical-documentation/civil-engineering-designs/Tunnels/Road-Tunnels/story/873/Reconstruction+and+rehabilitation+of+13+tunnels+on+the+Ni%C5%A1-Pirot+M1.12+main+road
New tunnel designs http://www.sicip.co.rs/en/activity/Technical-documentation/civil-engineering-designs/Tunnels/Road-Tunnels/story/874/New+tunnel+designs.html During the period of 2001 to 2008, preliminary designs were prepared for the following tunnels: on the E-80 (Niš-Dimitrovgrad), the E-75 (Leskovac-border with FYRM), the E-763 (Belgrade-Požega-Boljare), the E-70 (bypasses around Belgrade and Pančevo), the inner ring road and the Beli Potok-Vinča-Pančevo bypass railway line. Designs were prepared for 30 tunnels, 31 000 m in total length.

During the period of 2001 to 2008, preliminary designs were prepared for the following tunnels: on the E-80 (Niš-Dimitrovgrad), the E-75 (Leskovac-border with FYRM), the E-763 (Belgrade-Požega-Boljare), the E-70 (bypasses around Belgrade and Pančevo), the inner ring road and the Beli Potok-Vinča-Pančevo bypass railway line. Designs were prepared for 30 tunnels, 31 000 m in total length.

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Sat, 13 Sep 2014 15:29:44 +0100 Road Tunnels http://www.sicip.co.rs/en/activity/Technical-documentation/civil-engineering-designs/Tunnels/Road-Tunnels/story/874/New+tunnel+designs
’’Topčidersko brdo’’ Tunnel http://www.sicip.co.rs/en/activity/Technical-documentation/civil-engineering-designs/Tunnels/Road-Tunnels/story/875/%E2%80%99%E2%80%99Top%C4%8Didersko+brdo%E2%80%99%E2%80%99+Tunnel.html The Institute of Transportation CIP prepared the Preliminary design of ’’Topčidersko brdo’’ tunnel as a segment of the Preliminary design for the Inner Ring Road, from Paštrovićeva to Dr Milutina Ivkovića Street.

The Institute of Transportation CIP prepared the Preliminary design of ''Topčidersko brdo'' tunnel as a segment of the Preliminary design for the Inner Ring Road, from Paštrovićeva to Dr Milutina Ivkovića Street. 

The entry portal of the tunnel is situated in Banjičkih žrtava Street, and the exit portal is in Dr Milutina Ivkovića Street (toward Autokomanda Interchange).

"Topčidersko brdo" tunnel is composed of two separated tubes for bidirectional traffic. The left tunnel tube is 2 175 m long, while the right tube is 2 170 m long. The clean profile is designed to provide clearance of 4.70 m above the road surface and/or 2.50 m above the walkways. The overall effective width inside the tunnel is 9.30 m. The clear profile occupies 56 m2 in area.

When designing tunnels, the advanced methods for rock mass classification were applied, while tunnel structures and securing system were carried out according to the new Austrian Method (NATM). The tunnel structure is composed of both primary and secondary lining systems. The primary lining is made of shortcrete varying from 5 cm to 30 cm in thickness, truss steel arches, self-drilling anchor bolts, 3 m long, and mesh reinforcement fully in accordance with the rock mass category identified along the tunnel structure. The primer lining is covered with waterproofing system composed of PVC foils. The secondary lining is made of cast concrete, 30 cm thick.

The tunnel is also provided with cross-connections that enable passage of emergency vehicles, evacuation of pedestrians and niches for SOS phones and fire fighting equipment. The also design included the lighting, signalization and ventilation systems. Ventilation is enabled via portals and vertical shafts. Surveillance and control of the tunnel in both standard and emergency situations is enabled from the control center situated in Dr Milutina Ivkovića Street. ]]>
Fri, 12 Sep 2014 15:31:29 +0100 Road Tunnels http://www.sicip.co.rs/en/activity/Technical-documentation/civil-engineering-designs/Tunnels/Road-Tunnels/story/875/%E2%80%99%E2%80%99Top%C4%8Didersko+brdo%E2%80%99%E2%80%99+Tunnel
M21 Main Road, Prijepolje-Gostun-National Border Section http://www.sicip.co.rs/en/activity/Technical-documentation/civil-engineering-designs/Tunnels/Road-Tunnels/story/876/M21+Main+Road%2C+Prijepolje-Gostun-National+Border+Section.html Final rehabilitation design of the tunnel lining ID-61,ID-62 and ID-63

Final rehabilitation design of the tunnel lining ID-61,ID-62 and ID-63

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Thu, 11 Sep 2014 15:34:36 +0100 Road Tunnels http://www.sicip.co.rs/en/activity/Technical-documentation/civil-engineering-designs/Tunnels/Road-Tunnels/story/876/M21+Main+Road%2C+Prijepolje-Gostun-National+Border+Section