New News information at Tunnels & Tunnelling International New and updated information from News listed on www.tunnelsonline.info http://www.www.tunnelsonline.info/ en-us http://www.www.tunnelsonline.info/ New News information at Tunnels & Tunnelling International http://www.tunnelsonline.info/content/images/logo_big.gif John Stack steps down as a CEO of Murphy http://www.tunnelsonline.info/news/john-stack-steps-down-as-a-ceo-of-murphy-4348108 http://www.tunnelsonline.info/news/john-stack-steps-down-as-a-ceo-of-murphy-4348108 <p>John started his career with Murphy as a Graduate Engineer in 1982 on the Barrow Pipeline contract, and has since progressed through the ranks both within Murphy and externally. He re-joined the business in 2008 and has been at the Murphy helm for the last six years, successfully driving the business forward through a period of great change and through what has been a very challenging time within the industry.</p><p>A Murphy spokesman added, &quot;On behalf of the Murphy family, the Board of J. Murphy &amp; Sons and all our employees, I would like to thank John for his contribution to the business and wish him every success for the future.&quot;<br /></p> Wed, 20 Aug 2014 12:15:29 GMT LTA announces Eastern Region Line and DTL3 extension alignments http://www.tunnelsonline.info/news/lta-announces-eastern-region-line-and-dtl3-extension-alignments-4346165 http://www.tunnelsonline.info/news/lta-announces-eastern-region-line-and-dtl3-extension-alignments-4346165 <p>An LTA spokesman said, &quot;The 13-kilometre East Coast stretch of the TEL will connect commuters living in the eastern parts of Singapore and who are not directly served by the rail network currently, such as those in Tanjong Rhu, Siglap, Marine Parade, Upper East Coast and Bedok South, to the heart of the city. <br /> <br />&quot;As part of the 43km-long TEL, the East Coast stretch will also connect commuters to the north-south corridor. Fully underground, this new stretch will have nine stations, including one interchange station with the Downtown Line (DTL). In all, TEL will have 31 stations, of which seven are interchanges.&quot;<br /> <br />Concurrently the LTA finalised the alignment for the Downtown Line Three Extension (DTL3e). This new extension will be 2.2km long and consists of two stations, including the interchange station with the East Coast stretch of TEL.<br /> <br />The East Coast stretch of TEL will be completed in two stages. The first seven stations from Tanjong Rhu to Bayshore will be ready in 2023, while the remaining two stations, the DTL3e and the depot will be completed in 2024.<br /></p> Mon, 18 Aug 2014 11:50:54 GMT Sinkhole caused by Seoul Metro construction http://www.tunnelsonline.info/news/sinkhole-caused-by-seoul-metro-construction-4346018 http://www.tunnelsonline.info/news/sinkhole-caused-by-seoul-metro-construction-4346018 <p><br />The size of the hole in the road was initially thought to be 1m by 1.5m, and 3m deep, though local authorities said the total vacant area underneath the road was 2.5m by 8m, and 5m deep.</p><p>&quot;We suspect that the operation of the Shield TBM used to build the subway tunnel underneath the underpass created the sinkhole,&quot; said Professor Park Chang-geun, from Kwandong University, who led the investigative team comprised of 11 experts.<br /> <br />A shield TBM spins a cylindrical shield that grinds sand and rocks to excavate straight tunnels. It is commonly used as an alternative to drilling.<br /> <br />The ground underneath the underpass is partially bedrock as well as soft soils, and boring tunnels in such an area is unprecedented in Korea, Park said. &quot;Experts believe the most dangerous environment in which to excavate is one in which bedrock and soft soils are both present. We told the city government to conduct a close examination because it is possible the shield may have created empty pockets.&quot;<br /> <br />On 13 August, investigators discovered an additional 80m-long empty pocket under the underpass, with a width of 5 to 8m and a depth of 4 to 5m. It is also suspected to have been created as the result of underground tunnel construction.<br /> <br />&quot;The second vacant area looked like a large cave, and it could have collapsed at any time,&quot; Park said. &quot;If it was left undiscovered and collapsed, it would have had huge impact on society.&quot;<br /> <br />Later on 14 August, some 25 pillars supporting the underpass that were located inside the bigger pocket were found to have cracked slightly. The city government assessed that it could develop into a concern if the ground further subsides and stopped further construction on the subway line in the area.<br /> <br />The city government closed the Seokchon Underpass on 13 August and said it will reopen it in September after maintenance work is finished. <br /></p> Mon, 18 Aug 2014 10:34:47 GMT Kuwait City metro network plans finalised http://www.tunnelsonline.info/news/kuwait-city-metro-network-plans-finalised-130814-4343225 http://www.tunnelsonline.info/news/kuwait-city-metro-network-plans-finalised-130814-4343225 <p>The three-line system would include 61 stations and cover the entire capital, according to Safat-based Arabic daily newspaper Al Shahed.<br /> <br />A 23.7km line would run from Salwa to Kuwait University, with 19 stations.<br /> <br />A 21km line would run from Hawally, stopping at 27 stations to end in Kuwait City.<br /> <br />A third line would stretch 24km from Kuwait International Airport to Abdullah Al Mubarak area, passing through 15 stations.<br /> <br />The project will be implemented as a public-private partnership and construction is expected to begin in 2017. <br /></p> Wed, 13 Aug 2014 12:51:00 GMT Guizhou tunnel collapse traps 13 http://www.tunnelsonline.info/news/guizhou-tunnel-collapse-traps-13-4343018 http://www.tunnelsonline.info/news/guizhou-tunnel-collapse-traps-13-4343018 <p>The tunnel is being built on a highway in Shiqian County. The 13 people are estimated to be 600m away from the portal.<br /> <br />Excavators have been employed to rescue the trapped. Safety regulation officers, police and medics have also arrived. <br /></p> Wed, 13 Aug 2014 10:59:21 GMT Ottawa LRT tunnel reaches 50 per cent milestone http://www.tunnelsonline.info/news/ottawa-lrt-tunnel-reaches-50-per-cent-milestone-4342732 http://www.tunnelsonline.info/news/ottawa-lrt-tunnel-reaches-50-per-cent-milestone-4342732 <p>Mining started in October 2013, and RTG has excavated an equivalent of over 50 per cent of the tunnel volume, some 58,000m3 of the estimated 110,000m3 total. The majority of the remainder of the tunnelling operation will focus on the excavation of three station caverns.</p><p>Two roadheaders are mining out Lyon and Parliament stations, and the third should reach Rideau station to begin that mining operation by the end of the year. This project is on track and on budget and tunnel excavation is expected to be completed in the summer of 2016, the city announced.</p><p>&quot;This public transit link will transform how we will move around Ottawa,&quot; said Premier Wynne. &quot;I am committed to promoting public transit and creating jobs across Ontario. This incredible project is proof of what we as a province can achieve.&quot;</p><p>&quot;The Confederation Line is an important job-creating project that will make public transit faster, safer and more convenient for commuters in Ottawa,&quot; said MP Galipeau. &quot;It will bring tremendous benefits to our City and the local economy, including thousands of new jobs, and we are pleased to see such great progress on the tunnel portion of the project.&quot;</p><p>&quot;Work on the Confederation Line tunnel began only ten months ago,&quot; said Mayor Watson. &quot;Since then we have dug more than 807 metres of tunnel and made progress on the caverns of the first two underground stations. There is a lot more to be done, but these are excellent results and I am grateful to all the work crews and the project management team for their exceptional performance.&quot;</p><p>The Confederation Line is a CAD 2.1bn (USD 1.9bn) project that is jointly funded by the Government of Canada, the Province of Ontario and the City of Ottawa.</p><p>RTG has undertaken this first stage in Ottawa's future rail network. The 12.5km electric light rail system replaces existing diesel powered buses, providing rapid transit between Blair Station in the east and Tunney's Pasture in the west. The route includes 13 stations and a 2.5km tunnel that will alleviate congestion through the downtown core. <br /></p> Wed, 13 Aug 2014 09:05:02 GMT Port of Miami tunnel opens http://www.tunnelsonline.info/news/port-of-miami-tunnel-opens-4341648 http://www.tunnelsonline.info/news/port-of-miami-tunnel-opens-4341648 <p>Florida Governor Rick Scott had previously dedicated the tunnel on May 19 but the opening was continuously delayed for various problems and repairs, including issues with the ventilation. &quot;We had a problem with one of the fans, then we had a problem with two fans. Soon as we had problems with two fans, we took all the of fans down. we brought them to the manufacturer,&quot; Christopher Hodgkins, Vice President of Miami Tunnel, told local media.</p> Tue, 12 Aug 2014 10:04:32 GMT Proposed MTA budget funds Second Avenue Phase Two http://www.tunnelsonline.info/news/proposed-mta-budget-funds-second-avenue-phase-two-4341642 http://www.tunnelsonline.info/news/proposed-mta-budget-funds-second-avenue-phase-two-4341642 <p>He addressed the New York State Assembly Standing Committee on Corporations, Authorities and Commissions on 7 August regarding the Metropolitan Transportation Authority's (MTA) 2015-2019 Capital Program. The program will be submitted to the MTA board later this year and then forwarded to the Capital Program Review board in Albany.</p><p>Phase One of the Second Avenue Subway, between 96th and 63rd Streets, is expected to complete in 2016. Phase Two concerns the segment between 125th Street and 96th street, with an existing tunnel between 99th and 105th Streets.</p><p> </p> Tue, 12 Aug 2014 10:03:14 GMT Zublin/Hochtief to build Rastatt rail tunnel http://www.tunnelsonline.info/news/zublinhochtief-to-build-rastatt-rail-tunnel-4341636 http://www.tunnelsonline.info/news/zublinhochtief-to-build-rastatt-rail-tunnel-4341636 <p>The core element of the project is the twin-tube rail tunnel which passes directly under the city area of Rastatt and will be bored mechanically with a hydro shield TBM over a length of around 3.8km. The contract also includes the trough sections to the south and north as well as a supply shaft and an operational building.</p><p>&quot;As a traditional company from the state of Baden-Württemberg, we are proud to play a major role as technical leader in another trail-blazing inner-city rail construction project,&quot; underlines Edgar Schömig, Director of Ed. Züblin AG, in view of the new large contract.</p><p>&quot;We are very pleased that, with this project, we will be building an important part of Deutsche Bahn AG's main north-south railway route. Our experts with their expertise in tunnel boring machines are thus once again involved in the upgrading of modern, sustainable transportation infrastructure in Germany,&quot; says Wilfried Rammler, General Manager of HOCHTIEF Infrastructure GmbH.</p><p>Work will start on the project in November 2014 and conclude in mid-2018. <br /></p> Tue, 12 Aug 2014 10:01:43 GMT Israel fears Hamas tunnel threat http://www.tunnelsonline.info/news/israel-fears-hamas-tunnel-threat-4335401 http://www.tunnelsonline.info/news/israel-fears-hamas-tunnel-threat-4335401 <p><br />Similar to recently discovered excavations, one tunnel found last year was, after investigations, found to be 1.5 miles (2.4km) long and up to 20m deep, using 800t of concrete and estimated to cost USD 10M.<br /><br />It was equipped with electricity, and had chambers with provisions to last occupants extended periods of time. Pedal-operated tools were used for excavation.<br /><br />From early use of tunnels for smuggling restricted materials (weapons, building supplies, and even KFC) past<br />IDF checkpoints, Hamas moved into more daring territory for its underground activities. Bunker complexes were created to protect commanders, and clandestine routes into Israel to allow the deployment of strike teams have been dug.<br /><br />It is the latter use which allowed the famous kidnap of an Israeli soldier in 2006, and earlier this month facilitated a mission to infiltrate and attack a kibbutz in the country's south.<br /><br />Another recent raid targeted a patrol Jeep and fighters were equipped with tranquilisers.<br /><br />Investigating one such location on 30 July, IDF soldiers were killed entering a tunnel that had been preemptively booby trapped by Hamas forces. One explosive device was concealed within the tunnel, while a second was in the house above the portal, collapsing the structure.<br /><br />Since the start of the current Operation<br /><br />Protective Edge, the IDF claims to have uncovered 23 tunnels with 66 access points. With detection the most important part of the tunnel war for Israel, the Times of Israel newspaper has reported that the IDF considered, but didn't follow up with procuring the work of Paul Bauman, who holds the position of technical director of geophysics for WorleyParsons' Canadian business.<br /><br />Bauman is an expert in below-surface exploration with electrical resistivity tomography (ERT). While it is not foolproof, it is thought a combination<br /><br />of several techniques including radar, tomography and seismic measuring could go some way to mapping the area's covert use of underground space.<br /><br />Fighting in the region has escalated in recent weeks, with over 1,700 Palestinians, and over 50 Israelis having lost their lives at the time of writing. <br /></p> Wed, 06 Aug 2014 04:13:44 GMT