基本信息:
- 专利标题： SUBSEA FOUNDATIONS
- 申请号：PCT/EP2020/066643 申请日：2020-06-16
- 公开(公告)号：WO2020254333A1 公开(公告)日：2020-12-24
- 发明人： OLSEN, Christian Linde
- 申请人： SUBSEA7 NORWAY AS
- 申请人地址： Kanalsletta 9 4033 Stavanger NO
- 专利权人： SUBSEA7 NORWAY AS
- 当前专利权人： SUBSEA7 NORWAY AS
- 当前专利权人地址： Kanalsletta 9 4033 Stavanger NO
- 代理机构： CUMMINGS, Sean et al.
- 优先权： GB1908655.2 20190617
- 主分类号： E02D27/52
- IPC分类号： E02D27/52 ; E02D29/02 ; F16L1/12 ; F16L1/20 ; F16L1/24 ; F16L3/16
摘要：
A method of constructing a sliding subsea foundation comprises embedding at least one mass of rocks in seabed soil and placing a sliding mudmat on the seabed over the or each mass of rocks. The rocks may be lowered into a cavity in the seabed by dumping the rocks into the cavity or when contained within a gabion that is inserted into the cavity. Alternatively, a gabion containing the rocks may penetrate the seabed soil, driven by self-weight or additionally by a deadweight bearing on the gabion. The gabion may be lowered toward the seabed suspended from the deadweight. The deadweight may be removed and recovered after the gabion has been embedded in the seabed. The mass of rocks are embedded within an area of excursion of the mudmat to ensure that the mudmat will lie directly above the mass of rocks at any position within the area of excursion.