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Sweden’s biggest road and tunnel project A 21 km motorway bypass is being constructed to relieve traffi c in Stockholm
SWEDEN’S BIGGEST ROAD AND TUNNEL PROJECT
A 21 km motorway bypass is being constructed to relieve traffi c in Stockholm - the E4 Bypass Stockholm, or in Swedish, ‘E4 Förbifart Stockholm’. The bypass, scheduled for compleƟ on by 2030 stands out as one of Sweden’s biggest infrastructure projects and its 18 km of tunnel will make it the world’s second longest urban road tunnel.
Stockholm has the fastest growth rate in Europe. The 14 islands that make up the Stockholm region are currently home to over a fiŌ h of the Swedish populaƟ on, with 2.1 million inhabitants. By 2030, this is expected to grow to around 2.5 million. For the region to conƟ nue to develop, well-funcƟ oning infrastructure is essenƟ al, and major investments are being made in Stockholm. For example, local public transport has been improved by a new railway through Stockholm’s central districts, the Citybanan, which was offi cially opened in 2017. Although the Citybanan represents an important step towards improving public transport systems, it is not suffi cient to combat the increasing car traffi c in the city. Stockholm currently has only one major road artery - Essingeleden. The road was opened in 1967 and is designed for 80,000 vehicles per day. FiŌ y years later, around 160,000 vehicles travel on it on a typical working day and the number is rising. Consequently, the transport system in Stockholm is extremely vulnerable, with Essingeleden, in parƟ cular, having become very sensiƟ ve to road accidents. To address this situaƟ on, a 21 km motorway is being constructed, that will link the south of the city (Skärholmen) with the north (Häggvik). The new road, E4 Bypass Stockholm, will divert traffi c away from the city centre to the west.
ONE OF THE LONGEST ROAD TUNNELS IN THE WORLD Most of the bypass - 18 km of the 21 km - will run through tunnels, making the bypass the world’s second longest urban road tunnel, behind Tokyo’s Yamate Tunnel. The link will consist of twin tunnels, with its deepest point beneath Lake Mälaren, lying almost 70 m below sea level. Each tunnel will have three lanes of traffi c in each direcƟ on, supporƟ ng an anƟ cipated traffi c fl ow of 140,000 vehicles daily. During the construcƟ on work, 22 million tonnes of rock had to be excavated. Doka Sweden won the contract to provide formwork to four secƟ ons - FSE105 Kungens Kurva (King’s Curve), FSE502 Hjulsta Norra (North of Hjulsta), FSE61 Akalla and FSE62 Häggvik.
FSE105 Kungens Kurva (King´s Curve) Interchange King´s Curve is the largest of the four contracts. The project includes a traffi c area with a roundabout bridge and ramps, a concrete trough 350 m long and two concrete tunnels 330 m long.
The project includes a 20 m bored tunnel at the Interchange King´s Curve.
Client Skanska SecƟ on data Rock excavaƟ ons - 300,000 m³ Soil excavaƟ ons - 375,000 m³ Concrete - 78,000 m³ Sheet pile - 14,500 m² Concrete tunnels - 2 x 330 m Formwork in use Framax Xlife Framax Xlife plus Large-area formwork Top 50 Load-bearing tower Staxo 40 Load-bearing tower Staxo 100 Formwork traveller
FSE502 Hjulsta Norra (North of Hjulsta) SecƟ on FSE502 ‘North of Hjulsta’, where European Routes E4 and E18 meet, will be one of Sweden’s most important interchanges. The project secƟ on includes a 200 m concrete tunnel, and the challenge was to supply two formwork travellers that could be used to concrete the walls and ceiling simultaneously. The client also wanted to be able to move the travellers once a week. To achieve this, the travellers were fiƩ ed with hydraulic systems that could be used to complete the formwork work rapidly and logically. Client NCC SecƟ on data ConstrucƟ on method - parƟ ally monolithic Tunnel with formwork - 2 x 370 m Length of concrete secƟ ons - 10 m Number of concrete secƟ ons - 2 x 38 Trough - 170 m Formwork in use Framax Xlife Frami Top 50 Staxo 100 Formwork traveller
PROJECT DATA
PROJECT E4 Bypass Stockholm -FSE105 Kungens Kurva -FSE502 North of Hjulsta -FSE61 Akalla -FSE62 Häggvik
LocaƟ on Stockholm, Sweden
Type of project Tunnel and road construcƟ on
Total motorway length 21 km
EsƟ mated traffi c 140,000 vehicles/day (by 2035)
Total tunnel length 18 km
Total volume of rock 22 million tonnes
Start of construcƟ on Q3/2015
Scheduled compleƟ on of construcƟ on Q4/2030
PROJECT CREDITS
Principal Trafi kverket Swedish Transport AdministraƟ on (STA)
ConstrucƟ on companies Skanska NCC Züblin Scandinavia AB
FSE61 Akalla and FSE62 Häggvik An elliptical flyover is being built in Akalla above the local Stockholm traffic. This project section includes construction of around 950 m of motorway, major shoring measures for the excavation work, a tunnel around 120 m long built using the cut-and-cover method, the 480 m cutting for the tunnel entrance, and a roundabout. Work for the tunnel and cutting meets extensive specifications for impermeability and anchoring. ConstrucƟ on from Häggvik towards the fl yover is progressing through a deep rock gorge alongside the Hansta nature reserve. The work is being carried out in a highly challenging traffi c environment, where access for traffi c must be guaranteed at all Ɵ mes. On average, over 100,000 vehicles pass the site each day. Clients Züblin Scandinavia AB NCC SecƟ on data (FSE61 Akalla) Concrete - 60,000 m³
Reinforcement - 11,600 t Soil and Rock excavaƟ on - 715,000 m³ Rock tunnel excavaƟ on - 11,100 m³ Sheet pile - 8,745 m² Formwork in use Frami Framax Xlife Top 50 Staxo 100 Formwork traveller SecƟ on data (FSE62 Häggvik) Rock excavaƟ ons - 320,000 m³ Soil excavaƟ ons - 250,000 m³ Sheet pile - 3,500 m² Concrete - 29,000 m³ Formwork in use Frami Framax Xlife Top 50 Staxo 100 Formwork traveller
SMART AERIAL WORK PLATFORM SUITE MANITOU ASIA PRESENTS
Manitou Asia, part of the Manitou Group, a world leader in rough terrain handling, held an inaugural showcase for its innovaƟ ve range of Aerial Work Plaƞ orms (AWP) recently, at the Manitou Center Singapore. This marked a milestone in Manitou’s expansion into the AWP market to beƩ er serve the construcƟ on and industrial sectors in Asia. Manitou displayed a total of nine AWPs at the event. Each machine is built to realise enhanced safety, ease of use, reduced maintenance, operator comfort, increased productivity and reduced Total Cost of Ownership (TCO) for its users. In addition, Manitou’s fleet of smart AWPs have been developed as ‘Connected Machines’ to allow users to fully harness the benefits offered by the Internet of Things (IoT). They can provide real-time access to machine data, remote monitoring for better service levels and maintenance data on mobile apps. This means that users can track and trace their machines, enjoy anticipative maintenance to reduce downtime and achieve higher return on investment. At the event, Manitou also announced the introducƟ on of its fi rst electric all-terrain aerial plaƞ orm to Asia - the ‘Oxygen 200ATJ E’. Designed as a 100% electric mobile all-terrain elevaƟ ng work plaƞ orm, ‘Oxygen’ will address the growing demand in Asia for fl exible low-carbon soluƟ ons and accelerate users towards their goals of sustainability and effi ciency. The Oxygen 200 ATJ E is a versatile machine for indoor, outdoor and urban use due to its zero emission and noise cancellation capability. It also offers improved TCO with its zero fuel consumption, improved onboard diagnostics and reduced preventive maintenance. ‘Oxygen’ is suitable for many types of work such as cladding, framework, painting, cleaning, pruning, events, airport maintenance, port maintenance, industrial maintenance and urban worksites. In September 2019, Manitou Group started the construcƟ on of a new factory dedicated to AWPs in Candé (Maine-et-Loire), France, as part of its global investment plan. To be completed by the fi rst quarter of 2021, this new industrial facility will enable the group to respond to AWP market growth in markets including Asia. The Oxygen 200 ATJ E is a versaƟ le machine for indoor, outdoor and urban use due to its zero emission and noise cancellaƟ on capability. Top image by Manitou Group. BoƩ om image by Manitou Group, bauma 2019.
CATERPILLAR TO PRESENT NEW PRODUCTS AT CONEXPOͳCON/AGG 2020
The Caterpillar exhibit at CONEXPO-CON/AGG 2020 will include a mix of staƟ c displays, equipment demonstraƟ on area, and new services/technologies under the theme of ‘Your Work MaƩ ers’. The 60,000 Ō 2 (5574 m 2 ) exhibit in the show’s new outdoor FesƟ val Grounds includes Operator’s Stadium, where the fi nals of the Global Operator Challenge and equipment demonstraƟ ons take place.
Caterpillar is invesƟ ng in technology and safety features showcased in more than 30 Cat machines on display, including nine new product introducƟ ons from the dozer, excavator, arƟ culated truck and backhoe loader families.
A wide range of new models Successor to the Cat D5K2, the new Cat D3 dozer is characterised by grading accuracy and effi ciency. The operator cab delivers greater visibility, while enhanced controls deliver easier, intuiƟ ve fi nish grading. Powertrain advancements improve fuel effi ciency by up to 10% over previous models. The new centre-pivot 420XE backhoe loader now off ers seat-mounted controls for low-eff ort machine control to boost operator effi ciency and reduce faƟ gue. Dual Mode operaƟ on increases machine producƟ vity, while electronic loader controls off er true parallel liŌ . A new IT quick coupler delivers quick change-out of a large porƞ olio of Cat aƩ achments. The new 150 AWD motor grader features an all-wheel drive that assists with tracƟ on and manoeuvring, allowing the machine to work in any environment. Eco mode is said to deliver up to 10% greater fuel effi ciency without producƟ vity loss, and owning and operaƟ ng costs are reduced via new fi lters and longer service intervals. The new mastless 3D Cat GRADE control system unleashes the potenƟ al of the mouldboard to give it full range of moƟ on. The GNSS receivers are bolted to the machine, which increases upƟ me and reduces costs associated with potenƟ al receiver, mast or machine damage when using the dual 3D GNSS system. The integrated 3D Cat GRADE will iniƟ ally be available on the 140, 150 and 160 joysƟ ck motor graders. include up to 9% increased speed on grades, 8% improved acceleraƟ on and a 7% producƟ vity increase.
Five hydraulic excavators to debut Caterpillar will introduce fi ve new wheeled, small, medium and large hydraulic excavator models at CONEXPO-CON/AGG 2020. The new Cat M318 wheeled excavator is said to improve operator effi ciency by up to 45% with Cat GRADE, E-Fence and PAYLOAD opƟ ons and deliver up to 10% lower maintenance costs with longer service intervals. The new 313 GC is said to deliver low owning and operaƟ ng costs through a simple design that is easy to operate, maintain and own. The new 315 boasts a 13% larger cab and improved performance with up to 10% more swing torque and up to 14% more drawbar pull. Advanced engine technology and control system for the new 325 medium excavator is said to reduce fuel consumpƟ on by up to 25%, while a precise combinaƟ on of lower engine speed and large hydraulic pump pressure and fl ow delivers more work per unit of fuel. Extended maintenance intervals means geƫ ng more work done with up to 20% lower maintenance costs. The new 395 excavator is built to move tons of material quickly and effi ciently. With 10% more swing torque and 10% more sƟ ck force than the model it replaces, operators will experience faster cycle Ɵ mes with bigger buckets for greater ground-breaking power and producƟ on. Cat PAYLOAD also comes standard so operators can validate producƟ on at the end of every shiŌ . Plus two Ɵ mes more structural durability means longer service life, and extended service intervals lower maintenance costs by up to 20%.
The new 725 arƟ culated truck off erings include new cab features such as assisted hoist, AutomaƟ c Retarder Control and Advanced AutomaƟ c TracƟ on Control, which improve operator experience and reduce operator acƟ ons. Performance improvements
The Liebherr LTM 1750-9.1 mobile crane is geƫ ng stronger. The use of refi ned staƟ c calculaƟ on methods means that liŌ ing capacity values have been increased across almost the enƟ re working range. The LTM 1750-9.1 is becoming an 800 tonner, with the type designaƟ on LTM 1750-9.1 being retained. Liebherr has compiled a new luffi ng jib confi guraƟ on using exisƟ ng laƫ ce secƟ ons to provide addiƟ onal capacity increases for wind power applicaƟ ons. Cranes already in use on the market can be retrofiƩ ed with the new system. The wide-ranging experience that design engineers and structural engineers have with thin-walled boom profi les has enabled the popular calculaƟ on models and approaches to the Finite Element Method to be further refi ned. Supported by high-performance computers, the real-load-bearing structure of the crane is simulated even beƩ er in the staƟ c calculaƟ on model. The company has now transferred the latest fi ndings and methods, which had already been applied in the LTM 1650-8.1 presented at bauma, to the LTM 1750- 9.1, which was brought to market in 2012. The most recent calculaƟ on standards have also been taken into consideraƟ on. The result is that the liŌ ing capaciƟ es of the 750-tonner are now higher than originally calculated across the vast majority of working ranges. The new load capacity tables also contain a table with the nominal max load capacity of 800 tonnes. Operators of the LTM 1750-9.1 now have the possibility to update the crane soŌ ware with the new tables and, if necessary, to add any addiƟ onal equipment required. Thanks to the new luffi ng fl y jib confi guraƟ on, the LTM 1750-9.1 has moved into a higher load capacity class in the area of wind power applicaƟ ons. So, for example, more than 10 tonnes of addiƟ onal load capacity can be generated for the mounƟ ng of wind turbines on 90 m and 100 m high towers. The LTM 1750-9.1 is also much stronger in the area of heavy load liŌ ing. The gain in load capacity in such applicaƟ ons is in excess of 7 tonnes. Liebherr now off ers load capacity tables for three wind velociƟ es for this crane and for the latest new developments, giving the customer signifi cant support in both job planning and operaƟ on. The increase in load capacity of the LTM 1750-9.1 for wind power applicaƟ ons is more than 10 tonnes.
THE CTLH 192ͳ12 LUFFING JIB TOWER CRANE
Terex Cranes has presented its fi rst luffi ng jib tower crane with hydraulic luffi ng technology. Specifi cally designed for inner-city construcƟ on sites, this new model reaches the lowest in-service and out-of-service radius, of only 3 m and 8 m, respecƟ vely. The company said it focused its R&D eff orts to develop a model that is tailor-made for the high-demand markets where space issues are of primary importance and the crane is required to work on constrained areas and even with mulƟ ple cranes. The CTLH 192-12, with a jib length from 25 mm to 55 m (82 Ō to 180 Ō ), can deliver a maximum 12 t (13.2 US ton) and up to a 2.35 t (2.59 US ton) load at the maximum 55 m (180 Ō ) jib length. The company’s Terex Power Plus (TPP) funcƟ on will temporarily allow for an increase of the liŌ ing capacity by approximately 10%, giving the operator extra liŌ ing capacity just at the touch of a buƩ on. The hydraulic luffi ng technology off ers key advantages in terms of reduced occupied space, both in-service (up to only 3 m) and out-of-service (up to only 8 m). This technology also allows the operator to manoeuvre the crane with greater precision and readiness, as well as providing high performance for liŌ ing signifi cant loads both at the maximum and at the jib Ɵ p. The CTLH 192-12 has also been designed to opƟ mise assembly and dismantling operaƟ ons, as most of the parts are quickly assembled on the ground and the full crane erecƟ on can be completed with few liŌ s. Maintenance is also simplifi ed on the CTLH 192-12, thanks to the high reliability of all hydraulic components and clever soluƟ ons such as the auxiliary hydraulic system in addiƟ on to the main one, to ensure conƟ nuity of operaƟ on in any condiƟ on, and the dedicated system for oil cooling and oil heaƟ ng to keep the unit operaƟ onal whatever the external ambient temperature. For extremely cold temperatures, a dedicated ‘low temperature’ oil is available as an opƟ on. The CTLH 192-12 features the ergonomic S-Pace cab with new advanced electronic controls including, besides the Terex Power Plus funcƟ on, also the Easy Setup and the Terex Power Match, and is ready for AnƟ -Collision and Zoning systems. Hoist, slewing and luffi ng speeds are designed so that operators can move and posiƟ on heavy loads effi ciently and precisely. The crane’s new control system features expanded confi guraƟ on opƟ ons, allowing the CTLH 192-12 to effi ciently and quickly adapt to diff erent jobsite needs. The new Terex Slewing technology enhances the control of the crane on varying job sites condiƟ ons, adjusƟ ng the responsiveness of the crane to operator preferences or, for example, to wind condiƟ ons, fi ne-tuning the speeds, the acceleraƟ on and the counter-manoeuvre. The model can be confi gured with HD23, TS23, TS21 and H20 masts, from 2.0 m to 2.3 m (6.6 Ō to 7.6 Ō ) widths, and with several opƟ ons for basement, from foundaƟ on anchors to various chassis types from 4.5 m (14.8 Ō ) to 8 m (26.3 Ō ) base selecƟ ons, so that customers can effi ciently manage component inventory while cost-effecƟ vely meeƟ ng tower height needs. The crane can be equipped with the opƟ onal T-Link Plaƞ orm for remote control of crane fl eet data anyƟ me and from anywhere via web, to opƟ mise effi ciency and reduce costs. A wide range of real-Ɵ me data and a variety of analyses are visualised to assess the fl eet’s performance. The CTLH 192-12 luffi ng jib tower crane has been developed with several advanced features.
IES COMMEMORATES DUTCH FRIENDSHIP WITH JOINT FORUM ON PROFESSIONAL DEVELOPMENT AND CROSSͳBORDER MOBILITY
Marking the fi rst anniversary of IES’ partnership with the Royal Netherlands Society of Engineers (KIVI), a forum was held on 2 December 2019 at Mandarin Orchard Singapore, Ɵ tled “Professional Development & Mobility for Engineers”. It was aƩ ended by more than 120 engineers, with Senior Minister of State for Trade and Industry and EducaƟ on, Mr Chee Hong Tat, and the Dutch ambassador to Singapore, Ms Margriet Vonno, gracing the event as disƟ nguished guests. Against the backdrop of conƟ nuous professional development (CPD) and cross-border mobility of engineers, Mr Chee paid homage to local engineers for contribuƟ ng to Singapore’s development, and noted the importance of keeping up with global engineering and technology trends. Ms Vonno then shared briefl y about the unique engineering challenges faced in the Netherlands, striking an upbeat note about the potenƟ al for knowledgesharing between Singaporean and Dutch engineers. Echoing their senƟ ments was the fi rst speaker for the day, Mr Thijs Kamphuis. Drawing on his experiences as a lecturer and project engineer in the off shore wind energy sector, he emphasised the need for CPD and upskilling oneself for greater marketability in today’s rapidly-changing job market. Up next was Mr Tan Kok Yam, Deputy Secretary of the Smart NaƟ on and Digital Government Offi ce in the PMO. He provided updates on the Digital Government Blueprint, and made some perƟ nent suggesƟ ons on how engineers could keep up with the advancements brought about by Industry 4.0. Ms PaƩ y Mamola and Emeritus Professor Elizabeth Taylor, who are the Chairperson of the APEC Engineers Agreement and Deputy Chairperson of the InternaƟ onal Engineering Alliance (IEA) Governing Group respecƟ vely, spoke about the various IEA agreements and accords, how these can benefi t, as well as their future outlook. Mr Danny Lee, the Vice Chairman of the Steering CommiƩ ee for the NaƟ onal Career Progression Pathway for Technologists and Technicians, updated everyone present about its progress and the proposed framework. The forum then wrapped up with a lively panel discussion led by Emeritus President Dr Lock Kai Sang. The career progression pathway aƩ racted parƟ cularly strong interest, with many quesƟ ons from the fl oor posed to Mr Lee. Following this, all parƟ cipants adjourned to the funcƟ on space next door to network over food and drink. Here’s to many more years of friendship with the Dutch!
Ms Margriet Vonno, the Dutch ambassador to Singapore, spoke at length about the potenƟ al for engineering interacƟ on between both countries.
(From leŌ ) Ms PaƩ y Mamola, Mr Thijs Kamphuis, Prof Yeoh, Dr Lock, Em Prof Elizabeth Taylor, Er. Tan Seng Chuan and Mr Danny Lee pose for a group photo on stage aŌ er the forum.
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