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soil Mechanics

Recent Developments in Welding Techniques

The welding methods described above have been further improved in the recent past by employing new techniques and equipment. These techniques and equipment are described below in detail. Automatic welding recorder The invention of a welding recorder, for controlling the quality of welding in the flash butt welding method is a recent development. …

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SOIL PERMEABILITY

A material is permeable if it contains continuous voids. All materials such as rocks, concrete, soils etc. are permeable. The flow of water through all of them obeys approximately the same laws. Hence, the difference between the flow of water through rock or concrete is one of degree. The permeability of soils …

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type of soil

Organic soils: Surface soils and many underlying formations may contain significant amounts ofsolid matter derived from organisms. While shell fragments and similar solid matter are found at some locations, organic material in soil is usually derived from plant or root growth and consists of almost completely disintegrated matter, such as …

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Fine-Grained Soil Materials

Fine-Grained Soil Materials Inorganic Soils: The constituent parts of fine-grained materials are the silt and clay fractions. Since both these materials are microscopic in size, physical properties other than grain size must be used as criteria for field identification. The classification tests used in the field for preliminary identification are …

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Field test of soil

The methods of field identification of soils/Field test of soil can conveniently be discussed under the headings of coarse-grained and fine-grained soil materials. field test of soil Coarse-Grained Soil Materials The coarse-grained soil materials are mineral fragments that may be identified primarily on the basis of grain size. The different constituents of …

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Atterberg Limits

Atterberg, a Swedish scientist, considered the consistency of soils in 1911, and proposed a series of tests for defining the properties of cohesive soils. These tests indicate the range of the plastic state (plasticity is defined as the property of cohesive soils which possess the ability to undergo changes of shape without rupture) …

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TYPE OF FOUNDATION

Foundation Broadly can be classified into two type :  shallow foundation Deep foundation Shallow Foundation :  A shallow foundation is that which transmits the load to the strata at a shallow depth shallow foundation is laid at a depth equal to or less than it’s width called shallow foundation.  

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SETTLEMENT IN THE SOIL

here are the three kind of settlements, occured in soil Immediate Settilement primery settilement (consolidation settlement) secondry settlement Immidiate settlement :    Immediate settlement take place during the construction or after the construction of structure. its also known a distorsion settlement. It’s computed by the elastic theory especially for cohesion …

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WHAT IS FOUNDATION ?

Foundation :    A foundation is a substructure that transmits the structure load to the earth in such a way that the soil under goes deformation called foundation. A foundation fig is given below :

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