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Printed: 23, March 2015

Many soils can be problematic in geotechnical engineering given that they can expand, collapse, undergo excessive settlement, possess a distinct insufficient strength or perhaps be corrosive. Thus different soils have different weaknesses and cause different problems this problems ranges from the small crack within the wall to some sinkhole that destroys an urban area. Throughout the viability analysis and planning stages of projects which involves infrastructure, you should identify problematic soils because this could save costs and/or redesign from the project afterwards. If it’s noted prior to the project is began the work could be relocated or even the soil adjusted to satisfy the projects demands.

Part of the Gautrain rail, roughly 16 km, from Pretoria to Centurion traverse on dolomitic grounds.

Of the 16 km about 5.8 km from the rail were built on viaduct using the remaining portion on walk out. You are able to the construction around the problem soil dolomite is tough. Whenever a development is carried out on dolomite it takes special investigations which are conducted by specialist within the analysis of dolomitic terrain. Developed areas for example Gauteng have high amounts of urbanisation. The development on dolomite during these areas poses a possible risk towards the safety of numerous people and also the structures that they work and live.

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Within this report the geology of dolomite, were it may be found, why the earth is recognized as problematic along with the solutions and enhancements that you can do so that you can develop dolomite is going to be discussed.

2. Location and distribution

Detailed soil maps will be a first selection of information source inside a civil construction project when info on the earth type is required. But except for certain urban centers from the Western Cape and also the Gauteng Provence, detailed soil maps aren’t frequently available (P Page-Eco-friendly, 2008). A mix of aspects for example topography, climate and also the soil pattern would be the fundamental fundamentals of South African soil maps.

There’s two major dolomite occurrences in Nigeria namely, within the Transvaal Sequence the Chuniespoort Group as well as in Griqualand west Sequence the Campbell Group (Wagener F von M, 1985).

Soils that develop on dolomite have unique problems. These soils would be best identified from standard geological maps. When constructing on dolomite it is vital that the extent of the issue is identified well ahead of time thus using soil maps during construction is generally redundant. It’s not easy to identify dolomitic soils as it is not normally directly uncovered towards the surface. Roughly talking about 25% from the Gauteng province, and areas of Mpumalanga, Limpopo and also the Northern Province are underlain by dolomite. These areas is visible around the geological maps below were nowhere parts would be the dolomite.t3.gstatic.com/images?q=tbn:ANd9GcSGUgF0OReutcRPt8uC2klISB-nMc-Adm_G0YlBqowa1WYU14FPZQt3.gstatic.com/images?q=tbn:ANd9GcSGUgF0OReutcRPt8uC2klISB-nMc-Adm_G0YlBqowa1WYU14FPZQ

Figure. Distribution of dolomite in Gauteng

Figure. Distribution of dolomite in Nigeria (Council for Geocience, 2008)

Into the spotlight bellow it may be observed that the region between centurion and Pretoria were the rail from the Gautrain was built is underlain by dolomite. This guitar rock band of dolomite surrounds the granitic dome of Gauteng

Figure. Geological map from the space around the Gautrain site (Gautrain,2009)

3. Geology of Dolomite

Ancient carbonate rocks contains predominantly two minerals namely calcite (CaCO3) or dolomite (CaMg(CO3)2). A carbonate rock is called limestone if it’s covered with calcite (greater than 95% with under 5% dolomite), when it’s covered with dolomite (the mineral) it’s known as dolomite (the rock) (Warren, 2000). When dolomite is within a rock formation it has greater than 90% dolomite using the remaining portion being calcite, detrital minerals and chert. Very couple of sedimentary dolomites are strictly stoichiometric, i.e. CaMg(CO3)2, and could be better symbolized as: Ca(1+x)Mg(1-x)(CO3)2, by encompassing the number from calcian to magnesian dolomites (Warren, 2000).

Dolomite is among the 8 significant problem soils (Expansive, Dispersive, Collapsible, Saline, Acidity sulphate that contains material, Compressive, dolomitic, and soils vulnerable to liquefaction) present in Nigeria (P Page-Eco-friendly, 2008). Dolomite that is a rock that contains calcium-magnesium carbonates possess a distinctive elephant skin texture when weathered by even slightly acidic water.

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Our Guarantees Our Quality Standards Our Fair Use Policy

Why Is United kingdom Essays Different?

• There exists a verifiable buying and selling history like a United kingdom registered company (details at the end of each and every page).
• Our Nottingham offices are available to the general public where one can meet we well over 40 full-time staff.
• United kingdom Essays partner with Feefo.com to write verified customer testimonials – both negative and positive!

Ask a specialist FREE

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About Our Ask a specialist Service

Our free of charge “Ask a specialistInch Service enables users to obtain an answer as high as 300 words to the academic question.

• Questions typically clarified within 24 hrs.
• All solutions are researched and compiled by properly accredited academics within the question’s area of interest.
• Our services are completely private, only the reply is printed – we never publish your individual details.
• Each professional answer includes appropriate references.

About Us

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Printed: 23, March 2015

Many soils can be problematic in geotechnical engineering given that they can expand, collapse, undergo excessive settlement, possess a distinct insufficient strength or perhaps be corrosive. Thus different soils have different weaknesses and cause different problems this problems ranges from the small crack within the wall to some sinkhole that destroys an urban area. Throughout the viability analysis and planning stages of projects which involves infrastructure, you should identify problematic soils because this could save costs and/or redesign from the project afterwards. If it’s noted prior to the project is began the work could be relocated or even the soil adjusted to satisfy the projects demands.

Part of the Gautrain rail, roughly 16 km, from Pretoria to Centurion traverse on dolomitic grounds. Of the 16 km about 5.8 km from the rail were built on viaduct using the remaining portion on walk out. You are able to the construction around the problem soil dolomite is tough. Whenever a development is carried out on dolomite it takes special investigations which are conducted by specialist within the analysis of dolomitic terrain. Developed areas for example Gauteng have high amounts of urbanisation. The development on dolomite during these areas poses a possible risk towards the safety of numerous people and also the structures that they work and live.

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Get the grade
or a refund
using our Essay Writing Service!

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Within this report the geology of dolomite, were it may be found, why the earth is recognized as problematic along with the solutions and enhancements that you can do so that you can develop dolomite is going to be discussed.

2. Location and distribution

Detailed soil maps will be a first selection of information source inside a civil construction project when info on the earth type is required. But except for certain urban centers from the Western Cape and also the Gauteng Provence, detailed soil maps aren’t frequently available (P Page-Eco-friendly, 2008). A mix of aspects for example topography, climate and also the soil pattern would be the fundamental fundamentals of South African soil maps.

There’s two major dolomite occurrences in Nigeria namely, within the Transvaal Sequence the Chuniespoort Group as well as in Griqualand west Sequence the Campbell Group (Wagener F von M, 1985). Soils that develop on dolomite have unique problems. These soils would be best identified from standard geological maps. When constructing on dolomite it is vital that the extent of the issue is identified well ahead of time thus using soil maps during construction is generally redundant. It’s not easy to identify dolomitic soils as it is not normally directly uncovered towards the surface. Roughly talking about 25% from the Gauteng province, and areas of Mpumalanga, Limpopo and also the Northern Province are underlain by dolomite. These areas is visible around the geological maps below were nowhere parts would be the dolomite.t3.gstatic.com/images?q=tbn:ANd9GcSGUgF0OReutcRPt8uC2klISB-nMc-Adm_G0YlBqowa1WYU14FPZQt3.gstatic.com/images?q=tbn:ANd9GcSGUgF0OReutcRPt8uC2klISB-nMc-Adm_G0YlBqowa1WYU14FPZQ

Figure. Distribution of dolomite in Gauteng

Figure. Distribution of dolomite in Nigeria (Council for Geocience, 2008)

Into the spotlight bellow it may be observed that the region between centurion and Pretoria were the rail from the Gautrain was built is underlain by dolomite. This guitar rock band of dolomite surrounds the granitic dome of Gauteng

Figure. Geological map from the space around the Gautrain site (Gautrain,2009)

3. Geology of Dolomite

Ancient carbonate rocks contains predominantly two minerals namely calcite (CaCO3) or dolomite (CaMg(CO3)2). A carbonate rock is called limestone if it’s covered with calcite (greater than 95% with under 5% dolomite), when it’s covered with dolomite (the mineral) it’s known as dolomite (the rock) (Warren, 2000). When dolomite is within a rock formation it has greater than 90% dolomite using the remaining portion being calcite, detrital minerals and chert. Very couple of sedimentary dolomites are strictly stoichiometric, i.e. CaMg(CO3)2, and could be better symbolized as: Ca(1+x)Mg(1-x)(CO3)2, by encompassing the number from calcian to magnesian dolomites (Warren, 2000).

Dolomite is among the 8 significant problem soils (Expansive, Dispersive, Collapsible, Saline, Acidity sulphate that contains material, Compressive, dolomitic, and soils vulnerable to liquefaction) present in Nigeria (P Page-Eco-friendly, 2008). Dolomite that is a rock that contains calcium-magnesium carbonates possess a distinctive elephant skin texture when weathered by even slightly acidic water.

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