Si Shen
Tips for complex analytical modelling in civil engineering
This blogpost shares a few tips about modelling from personal experience
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Si's civil engineering blog
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Si Shen
Jun 292 min read
Properties of slurry for TBM tunnelling
What is slurry used in TBM tunnelling? The slurry used in TBM tunnelling is basically a water-based suspension fluid with added solids...
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Si Shen
May 252 min read
How high density slurry help mitigate tunnelling risks
Why slurry can support tunnel face? The reason why slurry can be used as an effective medium of face support, is because of the ‘filter...
95 views0 comments
Si Shen
Jan 242 min read
Demystifying the observational method
Explaining the observational method in plain and understandable language
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Si Shen
Mar 13, 20232 min read
Creep, stress relaxation and shrinkage
Creep, stress relaxation and shrinkage are different concepts but easily confused
489 views0 comments
Si Shen
Feb 28, 20232 min read
TBM face intervention
Once the TBM gets started, it usually stops from time to time for a procedure called ‘face intervention’
502 views0 comments
Si Shen
Jan 6, 20234 min read
TBM selection in rock conditions
For tunnelling operations in self-standing ground, three arch-types of TBMs can be used: open, single shield and double shield
442 views0 comments
Si Shen
Aug 7, 20222 min read
Annulus grouting behind tunnel segments
Annulus grouting (also called back grouting or tail-skin grouting) is the grouting around the tunnel annulus – the backfilling of the gap...
625 views0 comments
Si Shen
Jul 3, 20221 min read
Engineering properties of Peat
Peat is generally considered as highly problematic and one of the least wanted soil types you want your foundation to be in. It is an...
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Si Shen
May 15, 20222 min read
Tunnel segment geometry (1)
main consideration factors around the segment thickness, radial length and longitudinal length
425 views0 comments
Si Shen
Apr 12, 20222 min read
TBM selection under specific scenarios
pros and cons between EPB TBMs and slurry TBMs under specific scenarios of consideration
200 views0 comments
Si Shen
Mar 18, 20221 min read
The ‘reverse’, ‘sideways’ and ‘inclined’ bearing capacity problems
This blog post explains the ‘reverse’, ‘sideways’ and ‘inclined’ bearing capacity problems.
226 views0 comments
Si Shen
Feb 17, 20223 min read
Simulating ground water
Ground water is a matter unique to geotechnical engineers
140 views0 comments
Si Shen
Jan 31, 20223 min read
Convergence confinement method (3)
This blog will complete this series by discussing some practical uses of the Convergence-Confinement theory
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Si Shen
Jan 12, 20222 min read
Convergence confinement method (2)
the in-situ stress of the ground will be shared between the ground itself and the supporting structure once the tunnel is done
238 views0 comments
Si Shen
Jan 3, 20223 min read
Convergence confinement method (1)
What convergence and what confinement? Convergence-Confinement is a well-known theory in tunnelling, and widely applicable regardless of...
606 views0 comments
Si Shen
Nov 26, 20212 min read
Consolidation settlement and heave of clay
soil acts as a sponge, in that it pushes out water when squeezed, and sucks in water when let go
435 views0 comments
Si Shen
Nov 11, 20212 min read
Plain concrete - how is it different
there is a different set of design rules for plain concrete
435 views2 comments
Si Shen
Oct 25, 20214 min read
TBM selection - EPB and Slurry
Selecting the ‘right’ TBM is all about maximising efficiency and minimising risk
3,715 views0 comments
Si Shen
Oct 11, 20213 min read
How does a foundation fail
the ultimate failure of foundations is a lot more complicated to understand
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