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<br />. <br /> <br />" <br /> <br />. <br /> <br />., <br /> <br />. <br /> <br />. <br /> <br />MET PLNC <br /> <br />o <br /> <br />a, Earth retaining or flood wall <br /> <br />Figura 2-1. Typical cantllavered walla <br /> <br />againsl !he oIher dwing installation. Concrete shcel <br />piles are usually pre81l essed 10 facililate handling and <br />driving. Special comer and angle sections are lypicaIly <br />made from reinforced concrete due 10 Ihe Iimiled num- <br />ber required. Concrete shcel piling can be advanlageous <br />for marine environmenls, streambeds wilh high abrasion. <br />and where !he shcel pile mUS! support significanl axiaI <br />load. Past experience indicaleS !his pile can induce <br />seUlemenl (due 10 ils own weigh!) in soft fOID\(lation <br />materials, In this case !he watertightness of the wall <br />will probably be Iosl. Typical concrete sections are <br />shown in Figure 2~; This type of piling may no! be <br />readily available in aJI localities. <br /> <br />(5) Light-gauge aluminum. Aluminum sheet piling <br />is available as interlockingconugaled sheets. 20 10 <br />4 inches deep. 0.1010 0.188 inch thick. and made from <br />aluminum aJloy SOS2 or 6061. These sections have a <br />relalively low-section modulus and momenl of inertia <br />necessilaling tiebacks for mosl situations, A z-type : <br />section is also available in a depth of 6 inches and a <br />thickness of up 10 0.25 inch. Aluminum sections should <br />be considered for shoreline erosion projects and low <br /> <br />EM 111~2.2504 <br />31 Mar 94 <br /> <br />. <br /> <br />. . <br /> <br />. <br /> <br />CONCRETECN' <br /> <br />. . <br /> <br />. . <br /> <br />. <br /> <br />. <br />. r--.. . <br />'. '. <br />.. I. <br />I I <br />. <br />. I I <br />I I <br />I I <br />I I <br />I <br /> <br /> <br />STEEl. SHEET PLINC <br /> <br />D <br /> <br />b.l-well <br /> <br />bulkheads exposed 10 salt or brackish water when <br />embedmenl will be in free-draining granular material. <br />See Figure 2-' for Iypical sections. <br /> <br />(6) Other. materials. Pilings made from special <br />malerials such as vinyl, polyvinyl chloride, and fiber- <br />glass are also available. These pilings have low struc- <br />tural capacities and are normally used in tie-bacIc <br />silUalions. A vai1able lengths of piling are short when <br />compared 10 other materials, Material properties must <br />be oblained..from the manufaclurer and mUSI be care- <br />fully evaluaIed by the designer fot each app1ication. <br /> <br />2.5. ConstnJctlon <br /> <br />Jnsuuctions to the field are necessary 10 convey 10 field <br />personnel Ihe inlenl of the design. A report should be <br />prepared by Ihe designer and should minimaJIy include <br />Ihe fonowing: <br /> <br />Q. Design assumptions regarding interpretation of <br />subsurface and field investigations. <br /> <br />2-3 <br />