发明名称 |
Method and apparatus for simultaneous trenching and pipe laying in an arctic environment |
摘要 |
Disclosed is an apparatus for simultaneously trenching and laying a submarine pipeline within the bed of a body of water covered with a relatively thick ice mass. The apparatus comprises a pipeline construction spread which precedes a trenching and pipe installation spread, both of which traverse the ice mass. The pipe installation vehicle advances toward the constructed pipeline, elevates the pipeline, forms a slot-like opening in the ice and directs the pipeline into the water through the slot. A submersible dredging assembly extends from a installation vehicle which forms part of the installation spread. As the vehicle advances, the dredging assembly forms a trench in the sea bed. At the same time the dredging assembly guides the pipeline into the trench and provides support to a submerged component of the pipeline which is threaded through a slot in the dredging assembly.
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申请公布号 |
US4710059(A) |
申请公布日期 |
1987.12.01 |
申请号 |
US19860934016 |
申请日期 |
1986.11.24 |
申请人 |
BROWN & ROOT, INC. |
发明人 |
HAZLEGROVE, BILLY M.;ROBERTS, RICHARD A. |
分类号 |
E02F5/10;(IPC1-7):F16L1/04 |
主分类号 |
E02F5/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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