The vertical profile of the scs is shown in figure 2. The deep tunnel has prevented more than 125 billion gallons of pollution from getting into lake michigan. Commentary for deep tunnel sewerage system dtss a superhighway for used water management, the deep tunnel sewerage system dtss is an efficient and costefficient solution conceived by pub to meet singapores longterm needs for used water collection, treatment, reclamation and disposal. Jul 21, 2016 the deep tunnel sewerage system dtss is a massive integrated project being developed by the public utilities board pub in singapore to meet the island countrys long term clean water needs through the collection, treatment, reclamation and disposal of used water from industries, homes and businesses. Dtss uses deep tunnel sewers to convey used water by gravity to centralised water reclamation plants. A super highway for used water management, the deep tunnel sewerage system dtss was conceived in the 1990s as a longterm solution for singapore.
The use of a onepass lining can reduce the construction schedule, save capital costs and improve overall quality. Since 1994, a more than 26mile 42kilometer long tunnel has been keeping milwaukees sewage from spilling into lake michigan. Along the tunnel alignment, all the ground is composed of granite with different. Singapores deep tunnel sewerage system dtss will completely replace the tiny island nations wastewater infrastructure with a network of tunnels, pipelines. Mmsd is a regional government agency that provides water reclamation and flood management services for 1. Sewerage manual part 1 v4 with eurocodes deletion of sm3. The deep tunnel sewerage system dtss is a massive integrated project being developed by the public utilities board pub in singapore to meet the island. Until 2010, wastewater in singapore was collected through a sewer system that included 9 pumping stations that pumped water to six wastewater treatment plants. Sep 03, 2009 the singapore deep tunnel sewerage system dtss was conceived as a long term solution to meet the needs for used water collection, treatment and disposal to serve the development of singapore.
Jun 14, 2018 for the undersea tunnel sections, that total a length of 3. The deep tunnel sewerage system dtss is aimed at providing a robust and efficient means of catering to singapores usedwater needs. Water supply and sanitation in singapore wikipedia. There is not much of a manual for starting up a tunnel, since there are not many moving parts. Dtss phase 1, comprising the north and spur tunnels, the associated link sewers, the changi wrp and outfall, was completed in 2008. Dtss was envisaged to be implemented in two phases. Tunnelling through a frequently changing and mixed ground. Excellent performance lead to clients trust and more projects awarded. In this paper, we will discuss about the planning and design for the deep sewage tunnels for hats stage 2. In addition, a project to expand the jebel ali sewerage plant has been approved and will cost aed 1.
Factsheet about the deep tunnel sewerage system dtss. Deep tunnel sewerage system, singapore green cosmos. Solved water ingress systematically, allowing client to maintain launch schedule. The tunnel and reservoir plan abbreviated tarp and more commonly known as the deep tunnel project or the chicago deep tunnel is a large civil engineering project that aims to reduce flooding in the metropolitan chicago area, and to reduce the harmful effects of flushing raw sewage into lake michigan by diverting storm water and sewage into. Deep tunnel sewerage system singapore global collaboration provided client with the comfort of best practice solution to a complex challenge. The contract period is 49 months and will end in mar 2004.
Dubai municipality signs aed 12 billion contract for deep. The used water collection and purification project will have. Deep tunnel sewerage system dtss page 1 of 2 ministry. Overview of singapores deep tunnel sewerage system pub. A case study in guangzhou city, china article pdf available in water 88. Krishnan design of sewerage system sewage mixture of water and waste products types of sewage. Systems that carry a mixture of both domestic sewage and storm sewage are called combined sewers. Deep tunnel sewerage system infopedia nlb eresources. Sewage superhighway the completion of the entire deep. Deep tunnel sewerage system dtss phase 2 a used water superhighway for the future, the deep tunnel sewerage system dtss is a costefficient and sustainable solution conceived by pub, singapores national water agency, to meet the longterm needs of singapore for used water collection, treatment, reclamation and disposal. Hussain nasser lootah, director general of dubai municipality, signed a contract awarding parsons corporation the project implemented for the first time in the.
A used water superhighway for the future, the deep tunnel sewerage system dtss is a costefficient and sustainable solution conceived by pub to meet singapores longterm needs for used water collection, treatment, reclamation and disposal. Scope of the hats stage 2 sewage conveyance system the total length of the sewage conveyance system under hats stage 2 the scs is about 21km. Louis deep tunnel those in italics are deep tunnel systems that were represented at the april 12, 2018 workshop. Dtss2 is the second phase of this project, comprising an approximately 30km long south tunnel, a 10km long industrial tunnel, 60km of link sewers and a new water reclamation plant integrated with a newater facility. Pub, singapores national water agency, held a groundbreaking ceremony for the enhanced conveyance system of the deep tunnel sewerage system dtss phase 2 to mark the start of construction works.
The deep tunnel sewerage system is an integral part of singapores water management as it allows every drop of used water to be collected, treated, and further purified, said pubs chief executive, khoo teng chye, upon accepting the water project of the year award at the global water awards in zurich, switzerland, in april, 2009. Singapore s deep tunnel sewerage system experiences and. Includes its description, stats, participants, location and more. Construction of the deep tunnel sewerage system dtss in. Large diameter sewer tunnels can be built with either a twopass or onepass lining to protect the structural concrete from aggressive sewer gases, thereby lowering a tunnels maintenance needs and extending its life cycle. Kumagai sembcorp jv, philipp holzmann sembcorp jv, ed. The new deep tunnel system makes use of gravity for the collection of sewage. Paper on planning of deep sewage tunnels in hong kong.
Sep, 2017 the contract is a part of the deep tunnel sewerage system dtss phase 2 project and worth 309 million. Milwaukee deep tunnel new york city dep deep tunnels for water paris tima portland deep tunnel seattle deep tunnel singapore pub deep tunnel sewerage system dtss phase 1 st. It is expected to free up the equivalent of 214 football fields of land, which is currently. Deep tunnel sewerage system phase 2 hydraulics water. The deep tunnel sewerage system dtss is aimed at providing a robust and efficient means of catering to singapores usedwater. These pumping stations and plants were gradually decommissioned while a newer system, the deep tunnel sewerage system dtss was made operational. A onepass lining solution is being applied for the. Deep tunnel sewerage system phase 2 hydraulics water practice. Innovative onepass lining solution for dohas deep tunnel. Construction is scheduled to start in march 2018 and will be finished in september 2023. Sewerage projects the official portal of the uae government. Deep tunnel systems are generally 10foot 3meter or larger in diameter and used for dry weather sewage or used water, wet weather, stormwater, and csos.
Work begins on phase 2 of deep tunnel sewerage system in. Dubai, 15th may, 2016 wam after his highness sheikh mohammed bin rashid al maktoum, vice president and prime minister of the uae and ruler of dubai, approved the implementation of the deep tunnel sewerage system project, eng. Domestic sewage consists of liquid wastes originating from urinals, latrines, bathrooms, kitchen sinks, wash basins etc. The deep tunnel sewerage system dtss was conceptualised in the 1990s. Four tunnel boring machines will trench to give threeandahalf to six metre wide tunnels. The deep tunnels constructed during the first phase of the dtss convey wastewater by gravity to the centralized water reclamation plant wrp built on reclaimed. The deep tunnel sewerage system dtss was conceptualised in the 1990s as a sustainable, costeffective solution to meet singapores used water collection, treatment, reclamation and disposal needs in the long run. Jun 12, 2014 a deep tunnel system is designed to capture the initial surge from multiple parts of the city over time which is why you should always hear of them closing part of the tunnel to save room in it. The ang mo kio tunnel which has a finished diameter of 4. The hats consists of a deep tunnel system to collect all sewage in the urban area and to convey it to the stonecutters.
Deep tunnel for regulating combined sewer overflow pollution and flood disaster. A deep tunnel sewerage system dtss is now under construction in singapore, which aims to release land for higher value development such as residential and commercial development with additional benefits of increasing the water quality in the strait of johor and enhancing the operational reliability of the sewerage system. The deep tunnel sewerage system is a mega infrastructure project aimed to meet. Sewage superhighway the completion of the entire deep tunnel. Singapores deep tunnel sewerage system experiences and challenges english marshall, r. Singapore deep tunnel sewerage system dtss youtube. The kranji tunnel is part of the deep tunnel sewerage system in singapore. The deep tunnel sewerage system dtss is a massive integrated project being developed by the public utilities board pub in singapore to meet the island countrys long term clean water needs through the collection, treatment, reclamation and disposal of used water from industries, homes and businesses. Singapore pub deep tunnel sewerage system dtss phase 1. A deep tunnel system is designed to capture the initial surge from multiple parts of the city over time which is why you should always hear of them closing part of the tunnel to save room in it. Thanks to the tunnel and many other improvements, mmsd has captured and cleaned 98. Bur dubai strategic sewerage tunnel dsstdr phase 2. Singapores deep tunnel sewerage system dtss phase 2 extends the existing deep tunnel system to collect used water from the western and southern parts of singapore. Spanning two phases over more than 20 years, phase 1 was completed in 2008 while phase 2 is due to be completed by 2025.
This deep water tunnela holding tank on steroidscomprises. The deep tunnel sewerage system dtss is a core used water infrastructure which provides a costeffective and sustainable solution to support singapores continued growth and meet its longterm used water infrastructure needs. This was based on the twopass lining solution previously implemented on singapores deep tunnel sewerage system dtss and the strategic tunnel enhancement programme step in abu dhabi, uae. Diameter ranges from 3m to 6m diameter of pipes ranges from 0. Wastewater treatment wastewater treatment sewerage systems. Deep tunnel sewerage system phase 2 public utilities board.
Society of mining, metallurgy and exploration new search for. Chicago tunnel and reservoir plan, mainstream and mccook. Deep tunnel sewerage system wins engineering awardssingapores deep tunnel sewerage system dtss has won this years prestigious engineering achievem home, sweet deep tunnel sewerage system. Soil the soil in an onsite sewage system performs two major functions. Pdf innovative onepass lining solution for doha s deep. Singapores deep tunnel sewerage systemexperiences and challenges english marshall, r. Oct 15, 2008 since 1994, a more than 26mile 42kilometer long tunnel has been keeping milwaukees sewage from spilling into lake michigan. Factsheet about the deep tunnel sewerage system dtss a. A sewerage system, or wastewater collection system, is a network of pipes, pumping stations, and appurtenances that convey sewage from its points of origin to a point of treatment and disposal. Jul 14, 2016 singapores deep tunnel sewerage system dtss phase 2 extends the existing deep tunnel system to collect used water from the western and southern parts of singapore. Learn more about bur dubai strategic sewerage tunnel dsstdr phase 2, an under design infrastructure project in uae. Pdf deep tunnel for regulating combined sewer overflow. The singapore deep tunnel sewerage system dtss was conceived as a long term solution to meet the needs for used water collection, treatment.
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