Radford's cyclopedia of construction; carpentry, building and architecture. Based on the practical experience of a large staff of experts in actual constrcution work (1909)
Johnson, Alfred Sidney, 1860-, Radford, William A., 1865- · Chicago Radford Architectural Co · leaf 390
N 313 great care being taken to get as near a perfect bearingas possible at the ends. In lower portions of the shaft,where pressure is higher, the reinforcing rods were placed2 inches on centers, and the slab thickness was from 27to 30 inches. In these lower sections a hydraulic pres-sure of about… … Fig. 99. Mine Tunnel Support. 314 CEMENT CONSTRUCTION and wear, has been devised by a Colorada in-ventor. Instead of the rough-hewn timbers cut fromthe mountain side, adjacent to the property, asupport said to be superior and costing much lessis offered in tlie concrete article. The support-ing…
Architecture · Building
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