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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The Si-Eng
Si's civil engineering blog
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Si Shen
Jun 292 min
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
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...
71 views0 comments
Si Shen
Jan 242 min
Demystifying the observational method
Explaining the observational method in plain and understandable language
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Si Shen
Mar 13, 20232 min
Creep, stress relaxation and shrinkage
Creep, stress relaxation and shrinkage are different concepts but easily confused
462 views0 comments
Si Shen
Feb 28, 20232 min
TBM face intervention
Once the TBM gets started, it usually stops from time to time for a procedure called ‘face intervention’
481 views0 comments
Si Shen
Jan 6, 20234 min
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
408 views0 comments
Si Shen
Aug 7, 20222 min
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...
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Si Shen
Jul 3, 20221 min
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...
115 views0 comments
Si Shen
May 15, 20222 min
Tunnel segment geometry (1)
main consideration factors around the segment thickness, radial length and longitudinal length
392 views0 comments
Si Shen
Apr 12, 20222 min
TBM selection under specific scenarios
pros and cons between EPB TBMs and slurry TBMs under specific scenarios of consideration
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Si Shen
Mar 18, 20221 min
The ‘reverse’, ‘sideways’ and ‘inclined’ bearing capacity problems
This blog post explains the ‘reverse’, ‘sideways’ and ‘inclined’ bearing capacity problems.
219 views0 comments
Si Shen
Feb 17, 20223 min
Simulating ground water
Ground water is a matter unique to geotechnical engineers
140 views0 comments
Si Shen
Jan 31, 20223 min
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
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
225 views0 comments
Si Shen
Jan 3, 20223 min
Convergence confinement method (1)
What convergence and what confinement? Convergence-Confinement is a well-known theory in tunnelling, and widely applicable regardless of...
580 views0 comments
Si Shen
Nov 26, 20212 min
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
414 views0 comments
Si Shen
Nov 11, 20212 min
Plain concrete - how is it different
there is a different set of design rules for plain concrete
403 views2 comments
Si Shen
Oct 25, 20214 min
TBM selection - EPB and Slurry
Selecting the ‘right’ TBM is all about maximising efficiency and minimising risk
3,504 views0 comments
Si Shen
Oct 11, 20213 min
How does a foundation fail
the ultimate failure of foundations is a lot more complicated to understand
878 views0 comments
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