pile driving
Introduction
A pile driver is a device used to drive piles into the ground to provide support for the foundations of buildings or other structures. The term is also used in reference to members of the construction team who work with pile driving equipment.[1] One type of pile driver uses a weight placed between guides so that it can slide vertically. It is placed on top of a pile. The weight is raised, which may involve the use of a hydraulic system, a diesel engine, a steam engine, or manual labor. When the weight reaches its highest point, it is released and falls, hitting the top of the pile at the end of its fall, driving it into the ground.[1][2].
History
There are a number of claims about the invention of the pile driver. A mechanically sound drawing of a pile driver appeared as early as 1475 in the treatise Trattato di Architectura by Francesco di Giorgio.[3] In addition, it has been attributed to several other prominent inventors: James Nasmyth (son of Alexander Nasmyth), who invented a steam-powered pile driver in 1845,[4] the clockmaker James Valoue,[5] Count Giovan Battista Gazzola,[6] and Leonardo da Vinci,[7] so that all of them have been credited with having invented the device. However, there is evidence that a comparable device was used in the construction of Crannogs at Oakbank "Perth (Scotland)") and Loch Tay "Loch Tay (Scotland)") in Scotland as early as 5,000 years ago.[8] In 1801, John Rennie came up with the idea of a steam pile driver in Britain.[9] Otis Tufts is credited with inventing the steam pile driver in the United States. United.[10].
Guys
Contenido
Los antiguos equipos de hincado de pilotes utilizaban mano de obra humana o animal para levantar pesos, generalmente por medio de poleas, y luego soltaban el peso sobre el extremo superior del pilote. Los equipos modernos de hincado de pilotes utilizan varios métodos para elevar el peso y guiar el pilote.
diesel hammer
A modern diesel pile hammer consists of a large two-stroke diesel engine. The weight is the piston and the apparatus that connects to the top of the pile is the cylinder. Pile driving is started by raising the weight; Typically, a crane cable that supports the ram draws air into the cylinder. Diesel fuel is injected into the cylinder. The weight is dropped using a quick release mechanism. The weight of the piston compresses the air/fuel mixture, heating it to the ignition point of the diesel fuel. The mixture ignites, transferring the energy of the falling weight to the pile head and raising the weight. The rising weight draws in fresh air and the cycle continues until the fuel runs out or the operator stops it.[11].