Water Supply: The Present Practice of Sinking and Boring Wells, with Geological Considerations and Examples of Wells ExecutedSpon, 1875 - 217 pages |
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Page 2
... numerous rents and faults which abound in some rocks , and the deep ravines and valleys by which many countries are traversed ; for when these natural lines of drain- age exist , there remains only a small quantity of water to escape by ...
... numerous rents and faults which abound in some rocks , and the deep ravines and valleys by which many countries are traversed ; for when these natural lines of drain- age exist , there remains only a small quantity of water to escape by ...
Page 8
... numerous faults which occur in the formation . It will therefore be neces- sary to employ the greatest care before proceeding with any borings . Lower down in the order are the upper lias , the marl- stone , the lower lias , and the new ...
... numerous faults which occur in the formation . It will therefore be neces- sary to employ the greatest care before proceeding with any borings . Lower down in the order are the upper lias , the marl- stone , the lower lias , and the new ...
Page 9
... numerous springs will exist . But if , instead of being intercepted , the strata rise around a common point , they form a kind of irregular basin , in the centre of which the water will accumulate . In this case the surface springs will ...
... numerous springs will exist . But if , instead of being intercepted , the strata rise around a common point , they form a kind of irregular basin , in the centre of which the water will accumulate . In this case the surface springs will ...
Page 10
... numerous fissures ; and as no permeable stratum is interposed , as in the more recent formations , no reservoir of water exists . In the unstratified rocks , the water circulates in all directions through the fissures that traverse them ...
... numerous fissures ; and as no permeable stratum is interposed , as in the more recent formations , no reservoir of water exists . In the unstratified rocks , the water circulates in all directions through the fissures that traverse them ...
Page 95
... numerous sets of tubbing to stop the feeders separately . The tubbing used in England has almost invariably been of cast iron ; on the Continent , till recently , tubbing of wood has chiefly been used . Illustrations of both ...
... numerous sets of tubbing to stop the feeders separately . The tubbing used in England has almost invariably been of cast iron ; on the Continent , till recently , tubbing of wood has chiefly been used . Illustrations of both ...
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Autres éditions - Tout afficher
Water Supply: The Present Practice of Sinking and Boring Wells. With ... Ernest Spon Affichage du livre entier - 1885 |
Water Supply: The Present Practice of Sinking and Boring Wells. With ... Ernest Spon Affichage du livre entier - 1885 |
Water Supply: The Present Practice of Sinking and Boring Wells, with ... Ernest Spon Affichage du livre entier - 1875 |
Expressions et termes fréquents
Banister Fletcher beds Blue Clay Boilers bore-hole boring rod boring tool boring-head bottom Brewery brick brickwork bucket Butte-aux-Cailles cast-iron chalk chisel Civil Engineers cloth CONTENTS Construction crown 8vo cuts depth Ditto Edmund Sharpe excavation feet deep feet O.D. flints foot Formulæ gallons a day gallons a minute grapnel gravel greensand Grey Hedgerley hole Hydraulic illustrated inches diameter Isometric Projection joint Keuper length lever London clay lower Lower Tertiary Machinery Marl means Mechanical Memoranda mottled clays numerous OOLITE outcrop passed Passy Pebbles pipe piston plates Pocket-Book post 8vo pump quantity Railway rainfall READING BEDS RED SAND red sandstone River rock rope royal 8vo Screw Propeller screwed second edition sewed shaft shell shown in Fig sinking Slide Steam steining stone strata stratum stroke sunk surface Surface Condensers Tables thickness tion trepan tubbing tube upper valve vertical water-bearing strata Waterworks weight wood engravings wrought-iron yield
Fréquemment cités
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