The Design and Construction of Masonry Dams; Giving the Method Employed in Determining the Profile of the Quaker Bridge Dam

The Design and Construction of Masonry Dams; Giving the Method Employed in Determining the Profile of the Quaker Bridge Dam

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1888 edition. Excerpt: ...the dam and the foundation gave way. I The following account of an eye-witness of the accident is taken from M. Aymard's book on the " Irrigation of the Southern Part of Spain " "About half-past two on the afternoon of the 30th of April, 1802, it was noticed that on the down-stream side of the dam, towards the apron, water of an exceedingly red color was issuing in great quantities in bubbles, extending in the shape of a palm-tree. About three o'clock there was an explosion in the discharge-wells that were built in the dam from top to bottom, and at the same time the water escaping at the down-stream side increased in volume. In a short time a second explosion was heard, and, enveloped by an enormous mass of water, the piles and timbers which formed the pile-work of the foundation and of the apron were forced upwards. " Immediately afterwards a new explosion occurred, and the two big gates that closed the scouring-gallery, and also the intermediate pier, fell in. At the same instant a mountain of water escaped in the form of an arc. It looked frightful, and had a red color, caused either by the mud with which it was charged, or by the reflection of the sun. The volume of water which escaped was so considerable that the reservoir was emptied in the space of one hour. "The dam presents since its rupture the appearance of a bridge, whose abutrnents are the work still standing on the hillsides, and whose opening is about 56 feet broad by 108 feet high. Mr. Crugnola states that this dam has been lately rebuilt (" Muri di Sosiegno e Traverse dei Serbatoi," page 275.) 48 DESIGN AND CONSTRUCTIOJV OF MASONRY DAMS. U At the moment of the accident the effective depth of the water was 33.4 metres (109.6...show more

Product details

  • Paperback
  • 189 x 246 x 2mm | 95g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236801180
  • 9781236801180