Foundation Concrete

Foundation Concrete The type of foundation concrete and the proportion of the ingredients used in its making depend upon the nature of the structure, quality of the materials used and the site conditions. Since lime is fairly cheap, lime concrete is generally used for foundations...

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Excavation of Foundation in Water Logged Sites

Excavation of Foundation in Water Logged Sites Excavation of foundation in water logged sites poses a great problem for the site engineer. There are various methods of dealing with the situation which depend upon the depth of excavation, depth of water table and many other facto...

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Setting out of Foundations

Setting out of Foundations Before Commencement, of the excavation of trenches for foundation, a setting out plan is prepared on paper. The setting out plan is a dimensioned ground floor plan, usually drawn to scale of 1:50. The plan is fully dimensioned at all breaks and openings...

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Machine Foundation

Machine Foundation The design of machine foundation involves careful study of the vibration characteristics of the foundation system. Relevant data required for the design and construction of the machine foundation of machine should be obtained from the manufacturer of the machin...

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Foundations on Sloping Ground

Foundations on Sloping Ground To avoid sloping foundation bed or excessive depth of excavation at the top end, stepped foundation is necessary to be provided in a considerably sloping ground. Foundations on Sloping Ground is achieved by cutting the portion of the foundation trenc...

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Raft or Mat Foundations

Raft or Mat Foundations In case of soils having low bearing capacity, heavy structural loads are usually supported by providing raft or mat foundations. Also if the structure is vulnerable to subsidence on  being located in mining area or due to uncertain behaviour of its sub-so...

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Combined Footings

Combined Footings Combined footings are constructed in a way that the centre of gravity of the supporting area coincides the line of centre of gravity of the two column loads. These are usually in the form of rectangular or trapezodial in shape. Rectangular shape is adopted where...

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Grillage Foundations – Steel & Timber Grillage

Grillage Foundation – Steel & Timber Grillage Grillage foundation is used when heavy structural loads from columns, piers or stanchions are required to be transferred to a soil of low bearing capacity.  Grillage foundation is often found to be lighter and more economic...

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Inverted Arch Foundation

Inverted Arch Foundation Inverted Arch Footing/Foundation is used to be provided for multi-storeyed buildings in olden times. However, with the advent of reinforced cement concrete construction practice, inverted arch foooting is rarely done these days. One of the drawbacks in th...

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Wall Footings or Wall Foundations

Wall Footings Wall Footings consists of several courses of bricks, the lowest course being usually twice the breadth of the wall above. The increased base width of the wall is achieved by providing 5 cm (½ brick length) offsets on either side of the wall. The depth of each cours...

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