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Solving The Flat Earth Conundrum

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Doug Horton said that the art of simplicity is a
puzzle of complexity. Take a simple piece of flat
earth like Botswana, and try and solve the complex
puzzle of making water run - in any direction.
Richard Laborn relishes solving these problems,
which he faces daily.
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Richard first got a Higher Diploma
in Civil Engineering, worked for three years, and then
went back to UCT for a further two years before
finally obtaining his B.SC Engineering.
How has this interesting education process helped him?
"It helped me to develop a better vision of what I can
become, and what my purpose is. I still believe that
the degree is the better qualification to have. You
don't just apply an equation, you know where it is
coming from and what it means," he says, serious for a
moment.
"I was employable immediately after my degree because
of my work experience and my diploma. Lots of
so-called work experience while studying is really not
worth much. "I was very fortunate, however, I always
seemed to land the big projects - a double-arch
concrete dam, for example - so once I qualified with
my T4 I was nominated to be the ARE on a big roads
project for two and a half years."
"A lot of opportunities came my way. I made sure I
took them and I made the right choices. I love my job,
I really do, and I wanted to mix in the bigger
picture, so I needed to be adequately qualified," he
says passionately.
Landing in Botswana came about through the same
decision-making process. "I liked working on big
projects, and knew that I would have more chance of
doing the kind of work I wanted if I was in Gaberone.
I took over a job as soon as I got here, and was then
made a Resident Engineer. The RE qualification is one
that clients investigate; they want to know who is
managing their project," he says proudly.
In pure civil engineering projects there are no
project managers. "The RE has to look after
everything, including the finances. You need to have
vision and experience to run these jobs; it's a very
important job today."
The two biggest problems for engineers in Botswana are
existing services and the topography. The existing
services problem has its roots in a well-intentioned
desire to deliver services to the people. "Things
happen so quickly here, a sort of 'get the services
in, and we'll fix it later' attitude. So whoever was
first, telecom, power or water, just went ahead and
put in the service. There was little or no forward
planning."
A typical scenario sees a track winding its way
through a little village. "Then the village grows and
the track becomes a road, and the existing services
are in the way. And because it's so flat, you can't
just drop your invert level and say 'I'm going under
those cables’. You find that you will never see
daylight again."
Being so flat, the terrain creates all sorts of
problems for the engineer. "The layer work here
assumes critical proportions; if you make a slight
change, you could find your road nose diving into a
cut," he says with a chuckle. |
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Because of the 'flat slopes,' large culverts are the
order of the day. "You have to increase the pipe
culvert to carry the required capacity, so you can't
go over or under cables. You also sit with silting
problems. And of course the services run randomly," he
says, exasperated.
"The only way to solve these problems is to look at
them as a puzzle and do a lot of hard work. Take each
problem as you find it. The contract surveyor is a
very important person here. Because of the flat
terrain, even 50mm matters sometimes."
"Let me give you an example of what I am talking
about. We have just had a project where the sewer line
was going right through the project site. Only when
you go on site can you see why. If they had stayed on
the road reserve, they would have hit a rock outcrop.
So they just detoured the line through what was then
an unproclaimed piece of land, around the rock
outcrop, and didn't tell anyone of the change.
Fortunately, we were able to make that area of the
project a parking area; that’s a 400mm sewer line
under there," he says, shaking his head at the
thought.
"If you are lucky enough to get a green-fields job,
you don't have those problems; just the lack of any
slope. You scratch and scrape each and every level.
You become meticulous about levels. It’s a continuous
trade-off between pipe size and levels, and it's
tough, the yellow machines are behind you all the
time."
"Claims are another major aspect of projects. Here we
budget about 10-15% of project value for solving
problems caused by unknown existing services."
Civil Designer and AllyCAD are good programmes to use,
because here you have to work in small sections,
keeping a very close eye on levels."
Richard has been in Gaberone for over 5 years and
still loves getting up for work every day. "I have
good relationship with our clients now, and I get on
really well with the City Engineer. Here at Bergstan,
we have more than 200 years of Botswana experience,
and I am part of a good team, so for me the exposure
is good."
Malcolm X, the famous American activist was emphatic,
"Without education, you're not going anywhere in this
world." Richard Laborn is living proof of that maxim.
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Last Updated:
August 22, 2005
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