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https://tunnelbuilder.com/News/Malaysia-Special-SMART-Tunnel-on-National-Geographic-Channel.aspx
Malaysia Special: SMART Tunnel on National Geographic Channel
29/01/2008
Malaysia Special: SMART Tunnel on National GeographicChannelAnnually, floods besiege Kuala Lumpur, Malaysia's capital city. TheStormwater Management and Road Tunnel (SMART) project can divert flood watersfrom the problematic Klang River away from the city centre. The world's firststorm water tunnel with a built-in motorway, capable of turning even themotorway into a secondary flood channel, is strategically located in one ofKuala Lumpur's most busy ring road. With the help of the largest tunnel boringmachines in Southeast Asia, plus an impressive artillery of technology andknowledge, the 9.7 km-long 13.3 m excavated diameter SMART tunnel has beendesigned to end the city's major flood woes.
The construction of the project took place in the KualaLumpur limestone formation, well known for its well developed solution featuressuch as interconnected caves, cavities, sinkholes, dolinas and its erraticrockhead known to drop by 20-30 metres within a few metres.
The formation along the tunnel alignment is overlain byloose alluviums or by mine tailings. The low, 1-1.6 diameter cover in a cityenvironment added to the challenging nature of the tunnelling.
Several shafts to connect the roads with their ramps had tobe excavated by drilling and blasting more than half million cubic metres oflimestone, close to the centre of the city.
The erratic rockhead made the task interesting to supportthe excavations.A documentary on the SMART tunnel will premiere exclusively onNational Geographic Channel in Asia (including Malaysia on Astro Channel 553)on Friday 25th January at 10 pm. It repeats on Sunday 27th January at 8 pm andFriday 1st February at 4 pm. For more information, visit www.astro.com.my, www.ngcasia.com or www.ngs.org Hungarian tunnel specialist Gusztav Kladosserved as senior project manager for the construction of the SMART tunnel Themain character in the SMART story is Gusztav Klados, who was project manager.He knows everything about the building of the tunnel. Klados worked on theSMART project since 2002 before moving on to another project when the SMARTproject ended. The one-hour documentary is shooted with high-definition (HD)camera. The crew had 21 HD filming days spread out from January through Augustto film various events happening on the SMART, from the construction andtesting of the road to its opening.Some of the filming conditions wereextremely challenging and inhospitable. For example, filming the cutterheadintervention was tough. The filming crew was only allowed to do it because theywere certified divers and knew what it was like to be in compressed air. Theyhad to go through a decompression chamber to get to the front of the TBM. Thearea is so narrow, less than a 1.5 m wide, with temperatures hovering past40ºC. High humidity also caused the lens to fog up. The crew ended up with agreat sequence but was all soaking wet with perspiration. The documentary alsoexplains how the SMART really works, how it monitors the rivers and how gatescontrol the amount of water in the tunnel. It is quite amazing to see millionsof litres of water rushing through a tunnel you normally drive through. Themotorway tunnel was opened to the public in May 2007 while the stormwatertunnel began operation a month later. Click here, here, here and my/16. ReadE-News Weekly 48/2007, 28/2007, 15/2007, 9/2006, 3/2006, 39/2005, 26/2005,3/2005 & 9/2004.
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