Sewerage the Designing Construction And Maintenance of Sewerage Systems
The book Sewerage the Designing Construction And Maintenance of Sewerage Systems was written by author A Prescott Amory Prescott Folwell Here you can read free online of Sewerage the Designing Construction And Maintenance of Sewerage Systems book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Sewerage the Designing Construction And Maintenance of Sewerage Systems a good or bad book?
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10. Any timber which is to be placed where it will not be continually wet should be creosoted. If a platform is used without piling, sills, longitudinal or cross, should be placed under the planking, although in the case of small sewers these may consist of lengths of 2-inch plank only. Platforms without piling or heavy sills are of little permanent service under large sewers, but during con- struction may serve to prevent local distortion of the masonry before the cement has set. One or two li...nes of plank placed lengthwise under a pipe sewer, however, are in many cases of permanent value, back-filling being thoroughly filled and rammed between the pipe and the plank. Among the best of our woods for foundations are the cedar, oak, elm, alder, and beech. All bark should be removed and the sap dried out from, piling or sawed timber. The platform timbers should be fastened to the piles with iron drift-bolts or treenails. ART. 72. PUMPING AND DRAINING. Next to quicksand, water is probably the worst enemy of the sewer-contractor and requires a large share of he atten- tion of the engineer.
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