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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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
Add this copy of Earth Pressure: Retaining Walls and Bins to cart. $38.16, 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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Add this copy of Earth Pressure to cart. $59.67, new condition, Sold by Media Smart rated 4.0 out of 5 stars, ships from Hawthorne, CA, UNITED STATES, published 2019 by Wentworth Press.
