This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1916 Excerpt: ...dams, there is no need to grout the entire stream bed covered by the dam. The grouting in the cutoff wall trench, and in the trenches which receive the buttresses, will be sufficient. Sand Foundations.--The best discussion of the subject of sand foundations for dams is contained in a paper by Koenig.1 Dams may be ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1916 Excerpt: ...dams, there is no need to grout the entire stream bed covered by the dam. The grouting in the cutoff wall trench, and in the trenches which receive the buttresses, will be sufficient. Sand Foundations.--The best discussion of the subject of sand foundations for dams is contained in a paper by Koenig.1 Dams may be successfully built on sand foundations provided that water be prevented from flowing through the body of the sand on which the dam rests, and the stream bed be protected against wash on the downstream side, so that the toe may not be undermined. The complete prevention of any flow through the sand is practically impossible, but the path of the water may be so lengthened, and its passage so retarded, that the velocity can never be sufficiently high to move any particles of sand. If these conditions are met, the foundation will be permanent. If, however, a stream of even infinitesimal size should move with sufficient velocity to carry with it any of the particles of sand, the size of the stream would increase and, in a short time, the whole structure would be undermined and destroyed. Obviously, if the path which the stream must follow, from the time it percolates into the sand on the upstream side until it emerges on the downstream side, be made of a sufficiently great length, the resistance to flow will be great enough to so retard any movement of water through the sand that it can never attain an appreciable, or dangerous, velocity. Koenig states that: "No material, other than solid bed rock, offers a more secure support than sand which is properly confined; therefore, to make it serve as a safe foundation for a permanent dam is entirely a problem of making adequate provision against the only disturbing element--a current of flowing water.&qu...
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Add this copy of Hydro-Electric Power to cart. $21.42, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
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Fine. Trade paperback (US). Glued binding. 368 p. In Stock. 100% Money Back Guarantee. Brand New, Perfect Condition, allow 4-14 business days for standard shipping. To Alaska, Hawaii, U.S. protectorate, P.O. box, and APO/FPO addresses allow 4-28 business days for Standard shipping. No expedited shipping. All orders placed with expedited shipping will be cancelled. Over 3, 000, 000 happy customers.
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Seller's Description:
New. Trade paperback (US). Glued binding. 368 p. In Stock. 100% Money Back Guarantee. Brand New, Perfect Condition, allow 4-14 business days for standard shipping. To Alaska, Hawaii, U.S. protectorate, P.O. box, and APO/FPO addresses allow 4-28 business days for Standard shipping. No expedited shipping. All orders placed with expedited shipping will be cancelled. Over 3, 000, 000 happy customers.
Add this copy of Hydro-Electric Power to cart. $31.73, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
