TUCSS Monthly Seminar No. 223 – Thursday, 18 March 2021, 6.00 pm
Segmental Lining Design in Adverse Soft Ground Conditions
by Dr. Benno Ring, Ring – Consultancy in Tunnelling
Segmental lining design in soft ground can be quite tricky. This is especially true, when the boundary conditions for design become adverse, be it due to extremely soft ground, high over-consolidation, the presence of organic soil layers or abrupt changes of geology. A further necessity to also consider fire scenarios does not ease design matters in any way.
This presentation will highlight the problems faced, detail chosen procedures and derived solutions based on design work for projects in the Netherlands, Sao Paulo and Sydney. The respective tunnels were advanced with EPB- or Mix-shields and the outer lining up to 11 m in diameter. In all cases, the major contributor to finding economic verifications or to enabling verification was the application of comprehensive analyses with extensive 3D-FE-models.
Dr. Benno Ring is the owner of Ring – Consultancy in Tunnelling. He has over 20 years of experience in tunnelling, gained on major projects in Germany, Australia, Norway, Brazil, The Netherlands, Ireland and Belgium. He specializes in TBM and shotcrete, designing of segment-tunnels, cross-connections and artificial freezing, verification of fire scenarios and fibre reinforced concrete, geotechnics and numerics. Dr. Benno is currently working on the Metro U4/5, Metro U1/2, Metro 3 in Munich Germany since 2017 and Follo Line, Oslo-Ski in Norway since 2015.
Time and Place
The presentation will take place electronically on Thursday, 18 March 2021 at 18:00 hrs. The presentation will be approximately 45 minutes long, with 15 minutes of questions/discussion afterwards.
This is the 223rd in a series of presentations by TUCSS and is open to valid TUCSS Members only. Seats are on first-come-first-served basis and limited to 500 persons.
*TUCSS Corporate members limited to 5 registrations only. For TUCSS Corporate members, please email us the following information (Name, TUCSS Corporate membership number, company name, email address, PE/RE/RTO number if applicable).
To register, please login to your account on the TUCSS Website or TUCSS Mobile App. We will send you details of how to access the seminar nearer to date. The deadline for registration is Thursday, 4 February 2021 or when we reach 500 persons whichever is earlier.
If you need a certificate of attendance, please take note of the attendance policy:
- Login at the beginning of the seminar (link will open at 17:45 hours)
- Video must be turned on to see participant’s face
- Complete the quiz at the end of the seminar before logging out. The duration for the quiz is 15mins. The quiz must be completed during the seminar.
After verification, we will upload the certificate of attendance to your account.
Points have been applied and pending approval.
NOTE TO MEMBERS
Note 1: Some of you key in your name and TUCSS registration details through Chat function and it is not required. Please do not send anything through Chat function during the presentation.
Note 2: We noted higher no-show at the last TUCSS monthly seminar. As the seats are limited, please register only if you can attend the seminar. We hope to seek your cooperation.
Note 3: If you have suggestions/feedback for us to improve the online seminar, do email to us. Thank you.