Pile Driving Hammer
Pile Driving Piles are commonly driven means of hammer supported by a crane by a special device known as a pile driver. The hammer is guided between two parallel steel member known as leads. The leads are carried on a frame in such a way that they can be supported in a vertical position or an incliened position. Hammers are the following types. 1. Drop hammer If a hammer is raised by winch and allowed to fall by gravity on the top of a pile,it Is called a drop hammer. 2. Single acting hammer If a hammer is raised by steam, compressed air or internal combustion, but is allowed to fall by gravity alone,it is called a single acting hammer. 3. Double acting hammer The double acting hammer employs steam or air for lifting the ram and for accelerating the downward stroke. It operates with succession or rapid blows. 4. Diesel Hammer ...