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The Si-Eng
Si's civil engineering blog
All original by Si Shen.
All posts are personal opinions only.
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Si Shen
Sep 17, 20193 min read
Partial factors
This blog post hopes to dig down to the nature of partial factors.
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Si Shen
Sep 6, 20193 min read
A few tips for building computer models
There are a few quick tips that I have learned over the years and I would like to share them.
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Si Shen
Aug 4, 20192 min read
A step-by-step anatomy of concrete stress-strain curve (2)
this one goes on further to touch on the stiffness of concrete and the simplified relationships for cross-sectional design.
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Si Shen
Jul 18, 20194 min read
A step-by-step anatomy of concrete stress-strain curve (1)
This blog post aims to have a step-by-step anatomy of the stress-strain curve of concrete and clarify every detail and assumption
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Si Shen
Jul 1, 20194 min read
Shear (3) – shear in soil
This blog explains the shear behaviour of soil from a whole new angle for you to better understand the underlying reasons
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Si Shen
Jun 19, 20193 min read
The snow white chalk
This blog post kicks off the series with one of the prettiest types of ground – the chalk.
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Si Shen
Jun 11, 20194 min read
Design life – what differences does it make?
This blog post explains the difference that design life makes to the structure
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Si Shen
Jun 4, 20193 min read
Stress concentration around openings
On many occasions, an opening needs to be created in a structure. This could be a tunnel from a station box, a cross passage tunnel from...
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Si Shen
May 28, 20194 min read
Shear (2) – Composite behaviour in tunnel lining
This blog is inspired by this article “Simulating composite behaviour in SCL tunnels with sprayed waterproofing membrane interface: A...
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Si Shen
May 19, 20193 min read
Shear (1) - Transverse shear and composite action
I have planned a series of blogs on the topic of shear. This is the first of the series, and it introduces the not-so-commonly known...
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Si Shen
May 6, 20194 min read
A journey of designing ‘self-healing’ concrete
All concrete naturally cracks, regardless of whether it is desirable or not, and regardless of measures that you may choose to adopt, in...
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Si Shen
Apr 13, 20193 min read
The calculation of crack width
As part of serviceability limit state, cracks within reinforced concrete structural elements are typically required to be controlled down...
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Si Shen
Jan 13, 20193 min read
Some FAQs about CIRIA C766
As of 12th December 2018, CIRIA guide C766 has come on live. As one of its first practical users, I posted a previous blog post had a...
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Si Shen
Dec 27, 20184 min read
2018 - The Year of Delays
Year 2018 has been the ‘Year of Delays’ for all major projects that have something to do with tunnelling. With every single project one...
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Si Shen
Dec 5, 20183 min read
Dome structures
Architects hate columns. Columns are ugly, block views, and are the biggest enemies of architectural elegance. When columns appear in...
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Si Shen
Nov 20, 20183 min read
CIRIA Guide C766 preview
A brief preview of CIRIA C766 which has replaced C660
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Si Shen
Nov 15, 20185 min read
Sprayed Concrete
Sprayed concrete has wide-spread use in temporary surface stabilisation and sometimes also used as permanent works. Its field of...
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Si Shen
Nov 10, 20184 min read
Engineering Reversed (1)
It is not until I have had many years of practical experience, did I start to realise why some engineering concepts taught in classes are...
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Si Shen
Nov 6, 20184 min read
Self-compacting concrete
If normal concrete is like a stew, then self-compacting concrete is like a soup. I have some first-hand experience of using...
140 views0 comments
Si Shen
Nov 2, 20184 min read
Major projects – a special breed
Major projects are notorious for their cost overrun, delays in completion and attachment to politics. Examples in the metros sector are...
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