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: ...masonry, by inclining the foundation, or often, by adding a projection to the footing, below it, and near H. In the last case, the wall cannot slide without the projection pushing the earth before it; thus substituting friction of earth on earth for that of masonry on earth which is generally less. Of course the earth ...
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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: ...masonry, by inclining the foundation, or often, by adding a projection to the footing, below it, and near H. In the last case, the wall cannot slide without the projection pushing the earth before it; thus substituting friction of earth on earth for that of masonry on earth which is generally less. Of course the earth in front of the wall assists materially, when it is well compacted after the filling of the trench, but it is safer not to allow for this in the computation. For dry earth or clay, / can be taken as 0.5. Call a the factor of safety against sliding..' a X 13,730 = 0.5 X 39,800 = 19,900.'. a = 1.45 84,85 FINDING LENGTH OF T OR COUNTERFORTED WALLS 133 This is perhaps satisfactory. In fact, if one could be assured that during heavy rains, /' should never fall below 0.5, the depth of footing could be decreased. However, it is wise not to pare down a wall to a very minimum, since w, p and /', vary according as the earth is dry or saturated and our assumptions too, as to their values and consequently the value of the thrust may be far from the truth. 85. Approximate Method of finding Length of Base of T or Counterforted Walls. Let, Fig. 47, ABCD represent the base slab and FI the vertical stem of either a T or a counterforted wall. IN is the level earth surface on which there may be a surcharge of height NN', which may be supposed to reach to either N or /. Let E = earth thrust on vertical plane BN, which acts a distance c above B. b = length of base AB. In computing the weight resting on the base AB, ignore the weight of toe AF and for the case where the surcharge only extends to N, replace the weight of the remainder of the wall and the earth over it by that of a rectangular prism of earth of height BN, width GN and length 1 foot perpendicular to th...
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Add this copy of Earth Pressure, Retaining Walls and Bins to cart. $22.48, fair condition, Sold by Baggins Book Bazaar rated 4.0 out of 5 stars, ships from Rochester, KENT, UNITED KINGDOM, published 1916 by John Wiley.
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Fair. Book iii-x. 287pp; personal property stamps to endpages; blue boards, faded spine, gilt title to spine, marks to boards. Size: 8vo-over 7¾"-9¾" tall.
Add this copy of Earth Pressure, Retaining Walls and Bins to cart. $21.00, very good condition, Sold by BingoBooks2 rated 5.0 out of 5 stars, ships from Vancouver, WA, UNITED STATES, published 1916 by john wiley.
Add this copy of Earth Pressure: Retaining Walls and Bins to cart. $40.83, very good condition, Sold by ThriftBooks-Dallas rated 5.0 out of 5 stars, ships from Dallas, TX, UNITED STATES, published 2008 by BiblioLife.
Add this copy of Earth Pressure: Retaining Walls and Bins to cart. $79.00, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2008 by Bibliolife.
