Infographic: Why you need to subscribe to Tenders

Check out our latest infographic on Tenders and why you need to subscribe today:


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About Marlaine Andersen

I have been working for Leads 2 Business, in the Private Projects Department, for 10 years this July. I am Deputy HoD for Private Projects. Researching mining projects and projects through-out the African continent are my areas of research and I find them most interesting.

Tunnel Boring Machines

Tunnel Boring Machines (TBM)

A tunnel boring machine (TBM), also known as a “mole”, is a very large machine designed to excavate and drill with a circular cross-section, through a variety of soils and rock to create a tunnel.
Tunnel boring machines are used as an alternative to drilling and blasting methods in rock and conventional “hand mining” in soil. TBMs have the advantages of limiting the disturbance to the surrounding ground and producing a smooth tunnel wall. This significantly reduces the cost of lining the tunnel and makes them suitable to use in heavily urbanized areas. The major disadvantage is the upfront cost. TBMs are expensive to construct and can be difficult to transport, due to their very large size.
The first tunnelling machine was designed by an Engineer, Marc Brunel in the 19th century. It was used to help build the Thames tunnel in 1843 – the first tunnel under a river. Brunel’s invention was basically just an iron framework with spaces for workmen to stand-in. Tunnellers dug out the earth in front of them with pickaxes and shovels.
According to global tunnelling tradition, a TBM cannot start work until it is given a name. This tradition also sees most TBMs being named after women. Why are they given women’s names? Apparently, it’s a tradition dating back to the 1500s when miners and anyone working underground with explosives prayed to Saint Barbara to protect them from the dangers underground.
Phyllis, Ada, Elizabeth, Victoria, Jessica, Ellie, Sophia and Mary were the names of the eight tunnel boring machines used in London’s mega Cross-rail Project. Big Bertha is the infamous TBM stuck underneath Seattle and Alice tunnelled Vancouver’s new Evergreen Line.
Here in South Africa, the R300 million TMB used to construct the 3-kilometre tunnel stretching from Rosebank Station to Park Station as part of the Gautrain project in Gauteng was named ‘Imbokodo’, or ‘hard rock’. The name, ‘Imbokodo’, flows from the women’s protest march to the Union Buildings on August 9, 1956. This march saw the birth of the phrase ‘wathinta abafazi, wathinta imbokodo’ or, ‘if you strike a woman, you strike a rock’. Project officials chose the name because they believed the TBM would do her work with the “agility and effect of a super kung fu master, yet with a feminine touch of tenderness and softness as she tunnels her way through soft ground and hard rock”.

The world’s largest hard rock TBM is known as Martina, (she has an excavation diameter of 15.62m, a total length of 130m and a total weight of 4,500 tons. It was built by Herrenknecht AG, and is owned and operated an Italian construction company, Toto S.p.A. Costruzioni Generali (Toto Group) and was used for the tunnelling of the Sparvo gallery of the Italian Motorway Pass A1 near Florence in Italy.
Tunnelling machines have had an economic, environmental and cultural effect around the world. Like bridges, tunnels connecting communities, and sometimes even entire nations!
In the UK for example, modern TBMs have helped boost the economy. London Underground’s Jubilee line tunnel has brought redevelopment all along the new line.
TBMs can also be used to improve the environment. The machines that dug the Lee and Thames Tideway tunnels helped improve sewage treatment for large areas of London.
Today’s modern tunnelling machines look very different from Marc Brunel’s miner’s cage, but their function is very similar. The TBMs dig out earth which is carried back behind it – usually on a conveyor belt. The TBM moves forward and continues to dig.

Showing a TBM in action, underground

“Like giant underground factories on rails, they’re the equivalent of 14 London buses end-to-end and a staggering 143 buses in weight”

 

Sources:
Mining
Engineering News
ICE


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About Marlaine Andersen

I have been working for Leads 2 Business, in the Private Projects Department, for 10 years this July. I am Deputy HoD for Private Projects. Researching mining projects and projects through-out the African continent are my areas of research and I find them most interesting.

Tender Infographic: Mpumalanga

Tender Infographic: Mpumalanga

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About Marlaine Andersen

I have been working for Leads 2 Business, in the Private Projects Department, for 10 years this July. I am Deputy HoD for Private Projects. Researching mining projects and projects through-out the African continent are my areas of research and I find them most interesting.

Leads 2 Business Weekly Quote

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This week’s mindfulness quote encouraging you to appreciate all your days is from Anjali Sharma.


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To view more Articles, please visit our Leads 2 Business Blog.

About Marlaine Andersen

I have been working for Leads 2 Business, in the Private Projects Department, for 10 years this July. I am Deputy HoD for Private Projects. Researching mining projects and projects through-out the African continent are my areas of research and I find them most interesting.

Featured Company: Regal Civils

Read about who’s who in the Industry:

This week we are featuring Grant Lopes from Regal Civils based in Strand in the Western Cape. You can read what he has to say here…

Regal Civils

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About Marlaine Andersen

I have been working for Leads 2 Business, in the Private Projects Department, for 10 years this July. I am Deputy HoD for Private Projects. Researching mining projects and projects through-out the African continent are my areas of research and I find them most interesting.

Infographic: 10 Good Reasons to Subscribe to Projects

Check out our latest infographic detailing 10 Good Reasons to Subscribe to Projects today

Private Projects

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About Marlaine Andersen

I have been working for Leads 2 Business, in the Private Projects Department, for 10 years this July. I am Deputy HoD for Private Projects. Researching mining projects and projects through-out the African continent are my areas of research and I find them most interesting.

Leads 2 Business Weekly Quote

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This week’s quote is from Byron Pulsifer a retired criminologist, former manager of an employee assistance program, project manager and strategic planner, motivational speaker and motivational seminar leader


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To view notes with screenshots on how to use our website, please visit Leads 2 Business Wiki.
To view more Articles, please visit our Leads 2 Business Blog.

About Marlaine Andersen

I have been working for Leads 2 Business, in the Private Projects Department, for 10 years this July. I am Deputy HoD for Private Projects. Researching mining projects and projects through-out the African continent are my areas of research and I find them most interesting.

Tender Infographic: SADC – Africa

Tender Infographic: SADC – Africa

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About Marlaine Andersen

I have been working for Leads 2 Business, in the Private Projects Department, for 10 years this July. I am Deputy HoD for Private Projects. Researching mining projects and projects through-out the African continent are my areas of research and I find them most interesting.

A Diamond is Forever

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– De Beers Clever Marketing Strategy

When I first read this story, I was intrigued by how clever the marketing strategy was and how it has lasted through the decades. As a result, I wanted to share this fascinating story with you.

In the 1930s few Americans proposed with a diamond ring. Then, through some clever marketing, the diamond engagement ring was born.

In 1938, amid the ravages of the Depression and the rumblings of war, Harry Oppenheimer, the De Beers founder’s son, recruited the New York-based ad agency, N.W. Ayer to brighten the image of diamonds in the United States, where the practice of giving diamond engagement rings was not a common one.

The price of diamonds was falling around the world and De Beers needed a strategy to create a multi-faceted demand for diamonds in a way that hadn’t been widely marketed before. A copywriter at Ayer, a woman, Frances Gerety, was set the task of persuading young men that diamonds (and only diamonds) were synonymous with romance and that the measure of a man’s love (and even his personal and professional success) was directly proportional to the size and quality of the diamond he purchased. Young women, in turn, had to be convinced that courtship concluded, invariably, in the presentation of a diamond ring. The brilliant concept was to create an emotional link to diamonds, the sentiment being love, like diamonds, is eternal.

So, in 1947 Frances came up with the now-iconic slogan “A Diamond is Forever”. These four iconic words have appeared in every De Beers engagement advert since 1948.

“A Diamond is Forever” gives the concept of eternity, perfectly captured the magical qualities that the advertising agency wanted to attribute to diamonds and diamonds only and the sentiment De Beers was going for – that a diamond, like your relationship, is eternal.

Between 1939 and 1979, De Beers’s wholesale diamond sales in the United States increased from $23 million to $2.1 billion. Over those four decades, the company’s ad budget soared from $200,000 to $10 million a year.

A 2014 report by Bain & Company noted that China, India, and the United States will drive the majority of growth in diamond-jewellery consumption over the next decade, in part because of growing interest in diamond engagement rings in India and China, and stable interest in the U.S.


These days you will be hard-pressed to find someone whose engagement ring doesn’t involve a diamond of some sorts, which just proves that advertising can have a substantial impact on culture and can change the way generations of men and women view the institution of marriage.

It’s fascinating how De Beers and N.W. Ayer created such a demand from a diamond by coming up with a clever story and value proposition that gained worldwide appeal for their product – and it’s still successful today. 

Sources:
The Drum
The Atlantic
Hubspot


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About Marlaine Andersen

I have been working for Leads 2 Business, in the Private Projects Department, for 10 years this July. I am Deputy HoD for Private Projects. Researching mining projects and projects through-out the African continent are my areas of research and I find them most interesting.

Infographic: L2B Services

L2B Services Info

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About Marlaine Andersen

I have been working for Leads 2 Business, in the Private Projects Department, for 10 years this July. I am Deputy HoD for Private Projects. Researching mining projects and projects through-out the African continent are my areas of research and I find them most interesting.

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