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 11
... cut out of the same paper , it is easy to estimate roughly the area in square miles of any other surface , whatever may be its figure . MINERAL CHARACTER OF THE FORMATION . The second question relates to the mineral character of the ...
... cut out of the same paper , it is easy to estimate roughly the area in square miles of any other surface , whatever may be its figure . MINERAL CHARACTER OF THE FORMATION . The second question relates to the mineral character of the ...
Page 33
... cuts off the supplies from the whole of Kent , and interferes most materially with the supply from Essex ; for in its course up the valley of the Lea it either brings up the Lower Tertiary strata to the surface , as at Strat- D ford and ...
... cuts off the supplies from the whole of Kent , and interferes most materially with the supply from Essex ; for in its course up the valley of the Lea it either brings up the Lower Tertiary strata to the surface , as at Strat- D ford and ...
Page 38
... cut a fault about 150 feet distant , and upon this having been effected the water flowed in with such impetuosity that the supply , which had been 400,000 gallons a day , was at once doubled . The water from the new red sandstone is ...
... cut a fault about 150 feet distant , and upon this having been effected the water flowed in with such impetuosity that the supply , which had been 400,000 gallons a day , was at once doubled . The water from the new red sandstone is ...
Page 42
... cut away and the steining completed . In sinking with a drum curb , the curb , which may be either of wood or iron , consists of a flat ring for supporting the stein- ing , and of a vertical hollow cylinder or drum of the same outside ...
... cut away and the steining completed . In sinking with a drum curb , the curb , which may be either of wood or iron , consists of a flat ring for supporting the stein- ing , and of a vertical hollow cylinder or drum of the same outside ...
Page 46
... cut into the rock . These are worked either by striking them on the head with a hammer , or by jumping them up and down and allowing them to penetrate by their own weight . When used in the former manner they are called borers or drills ...
... cut into the rock . These are worked either by striking them on the head with a hammer , or by jumping them up and down and allowing them to penetrate by their own weight . When used in the former manner they are called borers or drills ...
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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
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