发明名称 |
Method and apparatus for through rotary sub-sea pile-driving |
摘要 |
A method and apparatus for driving a pile are disclosed. The pile-driving apparatus comprises a pile, a shoe tip coupled to a toe of the pile, and a drill string disposed within the pile. The drill string comprises a gripping device coupling the drill string to the pile and a hammer deployed into the pile such that the hammer is capable of transmitting a force to the shoe tip. The method, comprises positioning a hammer in a pile such that the hammer is capable of transmitting a force to a shoe tip; positioning, in the pile, a portion of drill pipe having a gripping device to engage the pile; and deploying the pile beneath the surface of a body of water.
|
申请公布号 |
US2005006105(A1) |
申请公布日期 |
2005.01.13 |
申请号 |
US20040496631 |
申请日期 |
2004.05.21 |
申请人 |
BELL DOUGLAS B;MUELLER DAN T.;GRAY-STEPEHNS MALCOLM G.S. |
发明人 |
BELL DOUGLAS B;MUELLER DAN T.;GRAY-STEPEHNS MALCOLM G.S. |
分类号 |
E02D7/30;E02D27/52;E21B4/06;E21B4/14;E21B4/20;E21B7/20;(IPC1-7):E21B23/00 |
主分类号 |
E02D7/30 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|