Jan 09, 2019
Since 2015, the international competition "the ITA Tunnelling and Underground Space Awards" seeks and rewards the most ground-breaking innovation and outstanding projects in tunnelling and underground space utilization. Last year the event took place in China, Nanjing. After editions in Hagerbach, Singapore and Paris, France the fourth ITA Tunnelling Awards returned to Asia for the 2018 event.
Vice-President of the ITA, Jinxiu (Jenny) Yan highlighted the increasing role of subterrean spaces in China for 40 years: “Although the uncertainty of geology and complex environment China completed 45.000 km of tunnels over the past 40 years. One of the main issue for China is also the construction of tunnels in high altitude. The Sichuan-Tibet Railway, a mega future project is also one of the most challenging as it has to cope with a freezing environment."
Through 8 categories and 1 Lifetime Achievement Award, the ITA Tunnelling Awards identifies and reward major disruptive innovations and groundbreaking projects. This edition, the event took place in Chuzhou, November the 7th, following the 20th CTUC conference (Chinese Tunnels and Underground Works Conference).
After two days of presentations, case studies and technical conferences, the Awards ceremony was a successful finale and offered the audience an immersion in of ancient China. With more than 300 attendees for the 4th edition (day and ceremony), the ITA Tunnelling Awards confirms its position as a reference for recognizing major projects and innovations on-going in the world.
Artificial islands have been created at the both ends of the tunnel to connect it to the bridges. This bridge link is 45m under the sea, to allow passage of 300,000 DWT tankers. This is one of the deepest immersed tunnels in the world.
Some innovative techniques have been used to build this tunnel. Due to delicate geological conditions, the foundations of the immersed tunnel have been mixed between rigid and soft ones. This resulted in the use of Pre-stressed High Strength Concrete piles, Jet grouting piles, Sand Compaction Piles, Compacted Block Stone plus Gravel Bed Foundation to create optimum foundation conditions.
This is also the first tunnel in the world where curved tunnel elements have been prefabricated, improving many technologies to measure what size was necessary. To conclude, the final section of the immersed tunnel, the so-called closure joint is an innovation in a “V shape” and of a sandwich structure (steel box structure filled with high fluid concrete) as the basic structure.
The Queershan Tunnel conquered a number of technical problems in construction in the high altitude and cold regions of plateau and broke the natural barrier on the northern line of the Sichuan-Tibet Highway, which will further close the link between the mainland and Tibet and help accelerate economic and social development in Tibetan region. It cost €150 millions.
The tunnel was completed on schedule, 100% good quality rate was reached, and no casualty occurred in construction. Queershan Tunnel completely changes the traffic in Queershan section, which will not be blocked by snow and ice in winter since then, ensuring G317 safe and unblocked throughout the year.
The project has been constructed by going under the subway line of Tehran Metro Line 1 with 3 minutes headway time and 550,000 daily commuters, and the North-South Railway with transportation of 40,000 passengers and a hundred tons of goods per day.
This project is located between the South Passenger Terminal and two Tehran's subway stations. The date of completion of tunnelling civil works is June, 2017 and the overall cost is €6.5 millions.
Safe and fast, this new method guarantees the quality of construction and the working environment. Compared with single circular cutter head EPB-TBM, newly developed horseshoe shape EPB-TBM with multiple cutter heads could reduce manufacture cost of the TBM, increase utilization ratio of the section, and reduce the quantity of excavation and construction material.
The project has developed the world first large horseshoe section (10.95m height and 11.9m width) EPB-TBM with multiple cutter heads. This project last 441 days (Nov. 11th, 2016 - Jan. 26th, 2018) and cost overall 60 million euros.
It fulfils “safety, comfort, environmental friendly, and energy efficient” requirement simultaneously for tunnel decoration and lighting. LUMA are innovative products which promote the technological advance of energy saving, safety and disaster prevention in road tunnels. LUMA is novel and unique, and has many functions such as non-flammable, energy storage, delayed luminescence, negative oxygen ion release, anti-mildew, anti-corrosion, anti-pollution, self-cleaning and other functions.
Since 2016, it was estimated that LUMA helped to save 22 million RMB of energy cost. LUMA significantly reduces the energy consumption in tunnel lighting. It alleviates contamination to tunnel walls from car exhaust increases the visibility and air quality in tunnel, and provides illumination for escaping from accidents.
LUMA have been used in road construction of China and was recommended for application in the national traffic system. They can be applied in underground engineering for energy saving and disaster prevention by providing emergency lighting.
The Norwegian Rock Blasting Museum is an entertaining and informative journey through the history of Norwegian tunnelling and rock blasting, with a 240 m long semi-circular tunnel as the main attraction. The tunnel display equipment and tunnelling techniques date from the beginnings of tunnelling all the way to modern computerised drilling and TBM boring. This is a unique museum, and possibly the only purpose-built "tunnelling museum" in the world.
For the past 3 years Bouygues TP R&D teams in collaboration with Dragages Hong Kong have worked to develop a specific tool to replace human involvement in this repeated setting- out, drilling and anchors installation by this robotic system which significantly reduces the risks associated with the drilling operation.
Through development, this has led to the so called ROBY 850 - Semi-Automatic Drilling Robot. ROBY 850 has been developed in order to improve the safety and productivity and has brought evolutional change to this practice and eliminated the health and safety risk.
He is currently Deputy Project Manager for the West Vaughan Sewage Servicing Project, a 14-km tunnel with 9 shafts in the Greater Toronto Area (Canada), and the Design Project Manager for the Suffolk Outfall in NY (USA).
He has been elected as a Fellow of the Royal Academy of Engineering (UK), a Foreign Associate of the US National Academy of Engineering and a Fellow of the Canadian Academy of Engineering.
He has published more than 100 papers and 3 books. His consulting work has included major civil and mining projects in 35 countries around the world and has involved rock slopes, dam foundations, hydroelectric projects, underground caverns and tunnels excavated conventionally and by TBM.
Jan 24, 2019
Guest editorial by Ron Thompson, President, National Water Resources Association (NWRA), General Manager, Washington County Water Conservancy District: Americans expect clean, safe and affordable water.
Jan 23, 2019
Reclamation has released a study that shows how the ten partnership tribes currently use their water, projects how future water development could occur and describes the potential effects of future tribal water development on the Colorado River.
Jan 22, 2019
The BMBF project "IWRM Zayandeh Rud" was successfully completed and celebrated with the opening of a German-Iranian training center.
Jan 21, 2019
Xylem Inc., a leading global water technology company dedicated to solving the world’s most challenging water issues, announced plans to partner with Imagine H2O, a non-profit organization that helps entrepreneurs build and scale solutions to solve the world’s water challenges.
Jan 18, 2019
New Jersey American Water was recognized by the New Jersey Department of Environmental Protection (DEP) as one of this year’s recipients of the annual Governor’s Environmental Excellence Awards. Recipients were recognized earlier at a luncheon held at the New Jersey ...
Jan 17, 2019
Plumbing Manufacturers International (PMI) introduced parameters for the use of indoor recycled water. Developed for the benefit of water utilities to ensure that plumbing products function as intended by manufacturers, the water quality limits provide recommended ranges on 13 different ...
Jan 16, 2019
WinCan, a market leader in sewer asset management software and inspection data storage, released a reference guide for PACP 7 structural defect codes. This poster groups structural sewer defects by category, illustrates how they look within pipelines, and lists the ...
Jan 15, 2019
Itron, Inc., which is innovating the way utilities and cities manage energy and water, signed a contract with the City of Waco, Texas to install Itron’s OpenWay® Riva IoT solution, including smart water communication modules and leak sensors, to reduce ...
Jan 14, 2019
Pipeline Renewal Technologies (PRT) released a white paper discussing the components and complexities of cured-in-place-pipe (CIPP) liners. CIPP involves curing liners directly inside the pipe. This method repairs damaged pipes with a liner that, essentially, becomes a new, jointless pipe ...
Jan 11, 2019
Over 100 delegates attended British Water’s inaugural Women in Water event held in London on 27 November 2018. The event sold out weeks in advance and attendees heard career advice from water industry leaders and took advantage of the opportunity ...
Jan 10, 2019
As part of the EU project "Integrated aquaculture based on sustainable water recirculating system for the Victoria Lake Basin (VicInAqua)", a pilot plant for (waste) water treatment for sustainable fish farming was officially opened on 23 November 2018 in Kisumu, ...
Jan 08, 2019
Sewers are a front-line defense for public health and the environment, but they're hidden from sight. Even so, explaining their value and operation is essential to building public support and securing funding.