A computer at the site office, some 3 km away, calls up the data logger and retrieves the data. (From Factiva via NLBs eResources website). +'?Tag=true&ID={ItemId}&List={ListId}'); return false;}}, null); javascript:SP.UI.ModalDialog.ShowPopupDialog('{SiteUrl}'+ Singapore's Deep Tunnel Sewerage System is new Innovative technology, that will take Singapore's sewage management into the next century. + '?List={ListId}&ID={ItemId}'), Active, Beautiful, Clean Waters Programme. Because this was within a railway protection zone, building codes required that the construction had to be monitored in real time. Used water is conveyed through the deep tunnels entirely by gravity to three WRPs located in Kranji. Cited By . By using new technology, this infrastructure will also take Singapore's sewage management into the next century. 4.12 Foamed concrete and CLSM Low-strength, low-density concrete has a number of applications including backfilling of utility trenches, filling old tunnels, sewers, tanks and other voids in or beneath structures. Tan Yong Soon, Lee Tung Jean and Karen Tan, Clean, Green and Blue: Singapores Journey Towards Environmental and Water Sustainability (Singapore: ISEAS Publishing, 2009), 18283 (Call no. Spanning two phases over more than 20 years, Phase 1 was completed in 2008 while Phase 2 is due to be completed by 2025. '/_layouts/15/itemexpiration.aspx' Tan, Lee and Tan, Clean, Green and Blue, 189.20. DTSS2 is the second phase of this project, comprising an approximately 30-km long South Tunnel, a 10-km long Industrial Tunnel, 60-km of Link Sewers and a new Water Reclamation Plant integrated with a NEWater facility. The $323.5m tunnel work, split into six segments, was performed using eight earth pressure balance tunnel boring nachines (EPB TBM) of 7.2m diameter each. DTSS uses deep tunnel sewers to convey used water by gravity to centralised water reclamation plants (WRPs) located at the coastal areas. +'?ID={ItemId}&List={ListId}'); return false;} if(pageid == 'audit') {STSNavigate(unescape(decodeURI('{SiteUrl}'))+ One such project is the Deep Tunnel Sewerage System. View enlarged version >>, PUB. Scope The project involves the construction of a 50km south tunnel linking Tuas to deep sea outfall in Singapore. Yue Choong Kog, Transboundary Urban Water: The Case Study of Singapore and Malaysia, in. It specified construction of 7.3 km of tunnel by tunnel boring machine and 800 m of tunnel by NATM. CLSM, controlled low-strength material is a sand-rich concrete with a high dose of a powerful air-entraining admixture. DTSS is a key part of our long-term used water system which comprises a network of link sewers leading to two major tunnels (Phase 1 & 2) criss-crossing Singapore with three large WRPs at the northern (Kranji), eastern (Changi) and western (Tuas) ends of Singapore, as well as outfall pipes. Singapore is considered to be one of the most water-stressed countries in the world. document.getElementById("copyrightYear").innerHTML = today.getFullYear(); The large tunnels are 50 meters below the surface and have diameters up to 6.5 m. The tunnels carry the sewerage to two new centralized water reclamation plants. The used water collection and . The Deep Tunnel Sewerage System (DTSS) is a superhighway for Singapores used water management. Both deep tunnels have diameters of up to 6 m and stretch across Singapore at depths of up to 55 m underground. + '?List={ListId}&ID={ItemId}'), /_layouts/15/images/sendOtherLoc.gif?rev=43, javascript:GoToPage('{SiteUrl}' + The main challenge in performing excavation in organic soils is the much wider extent of ground subsidence (if triggered) which may detrimentally affect the serviceability performance of adjacent buildings and infrastructure. By using new technology, this . The DTSS project aims to improve Singapores water conveyance and treatment system, while reducing the land occupied by the used-water infrastructure on the island by 50%. For example, the Deep Tunnel Sewerage System (DTSS) of Singapore, Kuching Wastewater Management System of Malaysia . The project, known as the Deep Tunnel Sewerage System or DTSS, consists of two large tunnels with a total length of 80 km and 170 km of smaller link sewers. The project Keller was awarded subcontract work for rock fissure grouting under Ed Zublin AG for the Deep Tunnel Sewerage System Phase 2 project in Singapore. The deep tunnel works entirely bygravity, eliminating the need for pumping stations, and thus the risks of used water overflows. The Press-in Method has been adopted for the shaft construction*1 project for Singapore's Deep Tunnel Sewerage System (DTSS). PUB, Tuas Nexus, press release, accessed 23 October 2019.The information in this article is valid as atNovember 2019and correct as far as we are able to ascertain from our sources. The second phase of the project began in 2016 and involved extending the tunnel system to the west of Singapore and constructing an advanced, state-of-the-art water reclamation plant. , et al. (From National Archives of Singapore document no. To meet Singapore's needs, the Singapore government put in place an S$3.65 billion Deep Tunnel Sewerage System (DTSS). Lee Yock Suan, The Ground-Breaking Ceremony for the Deep Tunnel Sewerage System Contract T-05 Kranji Tunnel, speech, Mandai Road, 8 July 2000, transcript, Ministry of The Environment (For National Archives of Singapore document no. The new deep tunnel system will make use of gravity for the collection of sewage. Under this project some 48km of tunnels of diameters between 3.3m to 6m will be constructed. 1. Storage: 405 million gallons Phase Two (2006) Length: 7.1 miles Diameter: 20 feet Depth Underground: 120 - 165 ft. In the late 1960s, the Public Works Department drew up the Sewerage Master Plan to guide the development of a comprehensive sewerage system to cope with rapid population growth and industrialisation in post-independence Singapore, as well as to improve the quality of life. 20171120003); PUB, , , 21 November 2017 (From Factiva via NLBs, 12. Benefits, PUB, accessed 23 October 2019.18. Data Loggers, Readouts, Atlas Web-Based Monitoring, Geosynthetics Testing (Interface Shear Box). to 32 ft. Singapore is the world leader in sustainable water and sewage management. MultiMon softwarerunning on the office computer then processes and displays the data, all in near-real time. The design life is 100 years, or even more. Portal ventilation.Seconndary TBM Ventilators. They are connected to the existing sewerage system by the smaller link sewers that divert used water flows from the existing sewers into the deep tunnels. Another issue with the existing system was the large land area occupied by treatment plants and pumping stations. Construction for Phase 2 began in 2017 and is scheduled to be completed by 2025. 1997032501), , speech, Kallang Theatre, 23 August 1998, transcript, Ministry of Information, Communications and the Arts. The MTS is a gravity-based sewerage system that conveys sewage to the Doha South Sewage Treatment Plant (STW). This was the first rock fissure grouting in Singapore and was carried out with the help of our Global Product Team and prior experience in Malaysia. The treated used water is further purified into ultra-clean, high-grade reclaimed water called NEWater or discharged to the sea through outfalls. . For example, food waste from the IWMF will be co-digested with sewage sludge at the WRP to produce a higher yield of biogas (a form of biofuel produced through the decomposition of organic matter). Sewershed Approach to Optimize Sewer System Operation. Copyright 2022 Durham Geo-Enterprises, Inc. All Rights Reserved. PUB, Deep Tunnel Sewerage System (DTSS).14. The 30km long south tunnel connecting the Tuas WRP will be built as part of the DTSS phase II. City of Indianapolis Deep Tunnel System. '/_layouts/15/expirationconfig.aspx' . In this phase, domestic used water and industrial used water will be conveyed separately through the South Tunnel and Industrial Tunnel respectively. Phase I of the DTSS is comprised of north and spur tunnels and associated link sewers connected to the Changi WRP. At a Glance. Presentation Overview. The Ground-Breaking Ceremony of the Ulu Pandan Sewerage Treatment Works Compact and Convered Extension, The Ground-Breaking Ceremony for the Deep Tunnel Sewerage System Contract T-05 Kranji Tunnel, PUB Starts Second Phase of DTSS with S$2.3B of Work Contracted Out, PUB Breaks Ground for Conveyance System of Deep Tunnel Sewerage System Phase 2, Tuas WRP DTSS 2 Industry Briefing, PUB, Singapore's National Water Agency, PUB and NEA to Call Over S$5 Billion in Tenders for Tuas Nexus, Construction Begins for S$6.5 Billion, 100km Superhighway for Used Water, Domestic policy (Water Resource Management), Water shortages and rationing in Singapore, Active, Beautiful, Clean Waters (ABC Waters) Programme, Clean-up of Singapore River and Kallang Basin. +'?ID={ItemId}&List={ListId}'); return false;} if(pageid == 'tag') {STSNavigate(unescape(decodeURI('{SiteUrl}'))+ A portion of this tunnel system, covered by contract T04, was awarded to Samsung Engineering and Construction. 2.8 kilometers of sewage tunnel for Phase 2 of the Deep Tunnel Sewerage System in Singapore. press release. The tunnel system will also replace more . RSING 363.70095957 TAN); Tan Gee Paw, Water (Singapore: Institute of Policy Studies; Straits Times Press Pte Ltd, 2016), 29. </p> Skip to content WSP WSP Toggle navigation Click to close search Click to open search WSP WSP Who We Are Ho Lee Construction was the sanitary and plumbing contractor for DTSS phase I. Yokogawa Engineering Asia supplied flow metres and transmitters to the Changi WRP, whilst ABB provided power solution and automation for the WRP. The first phase of the DTSS project was completed with an investment of $2.7bn and is comprised of a deep tunnel system running 48km long to channel the flows of water from existing gravity sewers to the Changi WRP in the east and Kranji WRP in the north. The project has received a number of awards and recognitions, such as being named "Water Project of the Year 2009" during the Global Water Awards ceremony in Zurich, Switzerland. The whole of Singapore will be served by the DTSS when Phase 2 is complete by 2025. In addition, the lining is also required to be as watertight as possible. NEWater factory at the Changi WRP started operation in 2010. RSING 333.91095957 WAT), D. A. Paulo and A. DSouza, The Long Road to Ensuring That Singapores Waste Doesnt Go to Waste,, The information in this article is valid as at. With construction underway, this is the first project in Singapore to install HAT-type steel sheet piles using the Hard Ground Press-in Method*2. at the northern, eastern and western ends of Singapore respectively. The treated used water is then reclaimed and further purified into NEWater, with excess effluent discharged to the sea in an environmentally responsible manner. Led by Guan Chuan Engineering Construction, the ongoing DTSS project currently has the 6133 E crane in place, the largest telescopic crawler crane to date in the SENNEBOGEN product line. (Call no. PUB, Singapore's National Water Agency, , , press release, 20 November 2017 (From National Archives of Singapore document no. 18 Built in phases, the multi-billion dollar project is slated to eventually replace the existing system of sewage collection, treatment and disposal. The challenge Monitoring was still in progress at the time of writing and will continue for three years. The electricity generated at the IWMF will fully power both facilities at Tuas Nexus, with excess electricity fed to the grid. Portal ventilation for 4 tunnel drives of lot T07 as well as secondary fans on the tunnel boring machines. After being treated at the WRPs, the reclaimed water is channelled to NEWater factories and further purified into NEWater. An average of 39 million tons of sewage flow each year from the 35 . The access shafts are exceptionally deep, some more than 100 ft spanning over two miles between some access shafts. '/_layouts/15/Hold.aspx' Collectively called Tuas Nexus, both facilities will allow Singapore to harness potential synergies in the water-energy-waste nexus. The Changi WRP has the capacity to treat 900,000 cu m of used water per day. '/_layouts/15/DocSetVersions.aspx' The tunnel boring machine (TBM) has been operating at a rate of 30 feet per hour since June 2007. RSING 363.70095957 TAN); Tan Gee Paw, (Singapore: Institute of Policy Studies; Straits Times Press Pte Ltd, 2016), 29. The Kranji WRP was an existing facility, while the Changi and Tuas WRPs are new ones built under the DTSS project. One of the most ambitious wastewater management programs in the world, the $3.65 billion DTSS will allow Singapore to accommodate an expected population increase from 4.5 million to 5.5 million, enable . One such project is the Deep Tunnel Sewerage System. +'?ID={ItemId}&List={ListId}', 'center:1;dialogHeight:500px;dialogWidth:500px;resizable:yes;status:no;location:no;menubar:no;help:no', function GotoPageAfterClose(pageid){if(pageid == 'hold') {STSNavigate(unescape(decodeURI('{SiteUrl}'))+ Aused water superhighway for the future,the Deep Tunnel Sewerage System (DTSS) is a cost-efficient and sustainable solution conceived by PUB to meet Singapores long-term needs for used water collection, treatment, reclamation and disposal. After the completion of DTSS Phase 1 in 2008, the Kim Chuan, Seletar and. Singapores sewerage system previously consisted of six water reclamation plants, one sludge treatment works and 139 pumping stations located islandwide. Advanced technology will be used to generate less sludge, thus reducing the cost of sludge disposal. 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