summer placement review
TRANSCRIPT
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Tunnelling Summer Placement ReviewAlice Jackson
10th August- 2nd October 2015
16 September 2015
216 September 2015
About Me
• Studying Civil and Environmental Engineering at Imperial College London
• ICE QUEST Scholar
• Previous work placement in 2012 with Atkins Oil & Gas
316 September 2015
The Problem• Culvert base designed to be
constructed over an existing brick sewer
• Atkins asked to calculate strain resulting from unloading above the sewer
• This will determine whether design is compliant with Thames Water guidelines
Lewisham GatewayRiver Quaggy Culvert base design over existing brick sewer
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Lewisham GatewayLearning to use Oasys Pdisp software
16 September 2015
Input• Ground conditions below level of sewer using
information extracted from nearby boreholes and trial pits
• Uniformly distributed load to represent the ground above
• Unloading of ground for culvert• Analysis line to represent sewer
Output• Soil displacements
516 September 2015
Lewisham GatewayCalculation Cover Sheet
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Lewisham GatewayTechnical Note
716 September 2015
Seanet ProUsing Seanet, I was able to simultaneously watch sonar and video footage of the Riber Tunnel for Severn Trent Water.• Looking for any major problems
that would need immediate action
Riber TunnelLooking through ROV footage
816 September 2015
Riber Tunnel
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Calculating reinforcement densities• Converting reinforcement into kg/m from mm2/m for top and
bottom tensile and shear for each section of the tunnel (invert, roof slap, side walls and central wall)
16 September 2015
HS2 Green Tunnels
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HS2 Amersham Shaft• Given plan and section views of the shaft,
I was asked to create a 3D model using SketchUp software
• Then able to convert these back into 2D by taking section cuts, and accurately dimension the drawings
• My first experience using 3D modelling software.
16 September 2015
SketchUp3D Modelling
1116 September 2015
SketchUp3D Modelling
1216 September 2015
SketchUp3D Modelling
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DLR Woolwich Arsenal Tunnel Inspection
16 September 2015
Inspection Report• Typing up the report• Compiling and captioning the relevant
photos
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Victoria Station Upgrade
Comparison of technical drawings• Locating most recent and previous
drawings to compare them and identify changes
Changes to reinforcement densities• Comparing drawings to identify changes to
the reinforcement bars
16 September 2015
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East/West Link UnderpassPossibility of Atkins involvement in the design and construction of a tunnel underneath a rail line to link the new Imperial campus to Latimer Road.
I was involved in the• Cover letter• Organisation chart• Delivery of tender to Imperial College
London
16 September 2015
Imperial West Tender
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We were taken down to the tunnels via the main shaft and shown• precast concrete running tunnels• 1st stage concrete (part of the track slab which is
constructed in the invert of the running tunnels) • cross passage which connects the running tunnels
16 September 2015
Site Visit: CrossrailLimmo Peninsula Site
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Technical SkillsLearnt to use various new pieces of software including• Oasys Pdisp• Seanet• SketchUp
And have also improved my Microsoft Excel skills.
• Insight into what a career in civil engineering will be like
• Better time management
• Understanding of the importance of teamwork + communication
• Different stages of a project- tender (Imperial West); design (HS2; VSU); construction (Crossrail); maintenance (DLR)
Knowledge Gained
16 September 2015
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Thank you
16 September 2015
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