Download A short course in soil-structure engineering of deep by Menzies, Bruce Keith; Ng, C. W. W.; Simons, N. E PDF

By Menzies, Bruce Keith; Ng, C. W. W.; Simons, N. E

CD comprises pupil variations of the OASYS software program programs 'FREW' and 'Safe'.


specializes in the 3 significant geotechnical demanding situations of static soil-structure interplay difficulties: Deep foundations - piles, barrettes, Multi-propped deep excavations, and Bored and open face tunnels Read more...

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Extra info for A short course in soil-structure engineering of deep foundations, excavations and tunnels

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By mineral and chemical content: . High silica (Si) content sufficient for quartz to occur within the rock (acid and felsic) . Low silica content insufficient for quartz to occur. g. pyroxene and amphiboles). 31 Copyright © ICE Publishing, all rights reserved. SHORT COURSE IN GEOLOGY FOR CIVIL ENGINEERS The differences in mineral content can be recognised by differences in colour. Rocks with a high silica content are generally light in colour. As the silica content reduces the rocks become darker in colour.

Phaneritic [Greek phaneros, ‘visible’] (medium–coarse-grained) – the grains are in the sand to fine gravel size range and hence can be seen with the unaided eye. All the grains are roughly the same size (equidimensional) and interlock to form a tight mass. The large size of the crystal grains suggests a slow rate of cooling. Granite is a good example of an igneous rock that displays this texture. Aphanitic [Greek a, ‘not’; phaneros, ‘visible’] (fine-grained) – most or all the mineral grains are too small to be seen without the aid of a microscope.

In the rapidly cooled material of lava, it is not possible to see the different individual crystals with the naked eye, or even with the aid of a hand lens. To see the crystals requires cutting a thin section of that rock and examining it under a microscope. 30 Copyright © ICE Publishing, all rights reserved. CHAPTER 2 NEW GROUND: IGNEOUS ROCKS Dyke Volcanic conduit Lava flow Volcano Lava flow Intrusive Extrusive Sill Pyroclastic deposits Volcanic neck with radiating dykes Batholith Fig. 2 Magma intrusions and extrusions forming batholiths, sills, dykes, lava and pyroclastic deposits.

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