Figure 12-75.—Typical uses of piles driven in a waterfront structure.18. Treated timber pile. A timber pile impregnatedwith a preservative material that retards or preventsdeterioration due to organisms.WARNINGWhen you are working with treated piles,protective clothing, such as long sleeves,gloves, and safety goggles, must be worn. Thepreservative used in treated piles can irritate theeyes and skin.19. Concrete piles. Two types of concrete piles areprecast and cast-in-place.Factors contributing to theiruse are the availability ofconcrete is made.l Precast concretesections that are square ornear the tip. They vary inthe materials from whichpiles are steel reinforcedoctagonal in shape exceptlength up to 50 or 60 feet.Because of their great weight, greater lengths aregenerally not feasible. They require time for setting andcuring and storage space.Precast concrete piles arefrequently driven with the aid of water jetting(fig. 12-76). Water is forced through and out the pile tipthrough jetting pipes constructed into the piles while thepile is driven.Figure 12-76.—Water jetting precast concrete pile.12-53
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business