Novapoint Civil Construction

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planning work was started. The first working drawings were delivered on approximately 1 December 2006, one month after start up. Project completion is 15 December 2007. 7 I.e. only one year from the detail planning start to project completion. ThE PROJECT The road project includes approximately 4 km of new highway 44, approximately 2 km of local roads and a similar length of footpaths. A rock tunnel, three bridges and four underpasses are included in the project. There is in addition a significant amount of municipal line re-routing. The rock tunnel has been stipulated to Normal profile surface section protect the valuable recreational area by Kleppelunden. The road would probably otherwise have been planned as a surface road on the west side of ridge if this condition had not been included. The road section has three crossings which are designed as roundabouts. Dimensioning traffic 20 years after opening is estimated to be 18,000 AADT. At this traffic volume level, the road should be designed as a four lane road with central reservation. The tunnel should, in accordance with standards, have two shafts with two lanes in each direction. The Norwegian Public Roads Administration has approved an exemption from road and tunnel standards and set the road standard to a wide two lane road with central barrier. Tunnel cross section T10.5 is selected to achieve a 1.5 m separation zone in the centre of the tunnel. Barriers are not acceptable in a tunnel, as this would hinder evacuation in the event of an accident. PLANNING The project is planned digitally using the different professional modules in Novapoint. Organisation of 8 drawings and folder structure follows The Norwegian Public Roads Administration’s PROF standard. A digital terrain model is set up based on digital maps and supplementary surveying data along the entire route. The surveying was carried out by Skanska Survey. The OPS project E39 Klett - Bårdshaug in the county of Sør- Trøndelag and the tender phase for OPS E18 Grimstad - Kristiansand has allowed ViaNova to develop a strong cooperation with Skanska. This cooperation continues in this project. Cooperation has contributed to the development of both planning methodology and software. A modern road construction site with GPS controlled machines and equipment needs much more comprehensive surveying data than was previously the norm. Road models have been supplied for all roads, both road surfaces and formations. Surveying data has in addition been prepared in kof format for all lines, manholes, lighting foundations, sign foundations, cable trenches etc. Surveying data in the form of goals from a reference line has as far as possible been avoided. A work procedure where the solutions are verified in a 3D model is required if satisfactory cross-profession co-ordination and survey data control is to be achieved. Controls carried out in the ‘old fashioned’ way in 2D using associated height calculations can no longer be accepted, as the solution also must be cross-profession checked in x, y, z. A cross profession VR model was therefore set up immediately after start, using Novapoint Virtual Map. All professional areas plan digitally and deliver data to the VR model co-ordinator, who updates this continuously. The solutions are checked/evaluated in the VR model in cross-profession meetings and changes are agreed. Revised solutions are prepared based on the review which is updated and then reviewed again in the VR model. This process continues until the ‘right’ solution is Design of the north tunnel portal
arrived at. This is therefore a cross-profession iteration process up to the delivery of working drawings and surveying data. Surveying data should not be delivered to the construction site before this is checked in the VR model. The working method is fully dependant on these procedures being followed and that no one takes ‘short cuts’ and delivers data to the construction site without it being checked in the 3D model. The VR model only contains planned data. Data shown in the VR model therefore always corresponds with surveying data and working drawings. The solutions are evaluated and checked in the VRmodel, including the following: • Aesthetics • Technical solutions • Alignment • Visibility control • Geometric deviations • Conflicts between the different site components (foundations, lines, manholes, etc.) Novapoint Virtual Map is developed such that the model can be organised in groups and with the option to turn these off and on. A road surface can therefore be switched off to view the infrastructure under the ground. ExAMPLES OF ThE USE OF ThE VR MODEL IN PLANNING Evaluation of alignment and visibility Picture from the VR model of Braut roundabout. Geometric control Any geometric deviations between adjacent roads are checked. I.e. legs which meet at a crossing. Transition between the road model for highway 44and the road model for circulation area in roundabout Cable, line constructions and foundations Road infrastructure such as cable ducts, duct covers, line trenches, drains, sand traps, lighting mast foundations etc. are located in the same narrow corridor between the edge of the road and the outer ditch edge. Collisions between the different constructional elements can easily occur. The VR model therefore is actively used to choose a solution and check that selected positioning does not result in conflicts with other systems. Bilde fra VR-modellen under vegbanen Bridge constructions The same applies in areas with constructions. Novapoint Bru is used in the planning of all constructions. The bridge project is transferred from here to the VR model, where it is checked that bridge geometry corresponds with road-geometry and that bridge foundations do not come into conflict with other systems. Bridge at Grudevarden. Systems above and below the road surface. Tunnel The tunnel model is set up by using Novapoint Bru and input into the VR model for control. The tunnel model is also used to generate geometric cross sections and data for the control unit on tunnel boring equipment. We have cooperated with Bever Control in the calculation of this data. 9
Page 3 and 4: Editor: Trine Jentoft Mortensen tjm
Page 5 and 6: Jan Ludvigsson, Vianova GeoSuite Vi
Page 7: Highway 44 Today’s highway 44 thr
Page 11 and 12: By Cert. Lecturer, engineer Manager
Page 13 and 14: Road gradient is calculated and is
Page 15 and 16: PIPELINES Pipeline geometry has a g
Page 17 and 18: IMPORTING LASERSCAN DATA FILES Kris
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Page 21 and 22: andvika - ‘All in 3D’ PROJECT A
Page 23 and 24: Surface section Sandvika east • V
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Page 33 and 34: NOVAPOINT IN FRANCE The goal for Vi
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