IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0277494
(1981-06-26)
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발명자
/ 주소 |
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출원인 / 주소 |
- Exxon Production Research Co.
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대리인 / 주소 |
Delflache, M. L.Bell, K. A.
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인용정보 |
피인용 횟수 :
16 인용 특허 :
3 |
초록
▼
A compliant pile system for supporting the vertical weight of a guyed tower structure installed in a body of water. The pile system is comprised of at least one pile element which in turn is comprised of a pile jacket and a pile member. The pile jacket extends from one point in the structure to a se
A compliant pile system for supporting the vertical weight of a guyed tower structure installed in a body of water. The pile system is comprised of at least one pile element which in turn is comprised of a pile jacket and a pile member. The pile jacket extends from one point in the structure to a second point which lies above the first point and is attached at only one point to the structure. The pile member passes through the pile jacket and is forced into the marine bottom and is attached only at its upper end to the pile jacket. In one modification, the pile jacket is comprised of an odd number of concentrically positioned sleeves with the pile member being affixed to the top of the innermost sleeve and the outermost sleeve being affixed only at its bottom to the structure. The sleeves, if more than one, are attached to each other at their respective alternate ends. In another modification, the pile jacket is comprised of an even number of concentrically positioned sleeves with the pile member being affixed only at its upper end to the innermost sleeve and the outermost sleeve being affixed only at its upper end to the structure. The sleeves themselves are connected together only at alternating respective ends thereof. By constructing and affixing the pile jacket as described and affixing the pile member thereto only at its upper end, the effective length of the pile element is increased and its axial stiffness is reduced.
대표청구항
▼
1. A compliant pile system for supporting the vertical weight of an offshore structure of the type which extends between the marine bottom and the surface of a body of water, said system comprising: at least one element comprising: a pile jacket, having an upper and lower end, extending from a
1. A compliant pile system for supporting the vertical weight of an offshore structure of the type which extends between the marine bottom and the surface of a body of water, said system comprising: at least one element comprising: a pile jacket, having an upper and lower end, extending from a first point on said offshore structure to a second point on said structure, said second point being above said first point, and said pile jacket being affixed to said offshore structure at only one point; and a pile member, having an upper and lower end, positioned within said marine bottom, said pile member being affixed to the proximate upper end of said pile jacket at only the upper end of said pile member. 2. The compliant pile system of claim 1 wherein said second point lies below the wave zone of said body of water. 3. The compliant pile system of claim 1 wherein said pile jacket comprises: a sleeve, having an upper and lower end, and affixed only at its proximate lower end to said offshore structure at said first point. 4. The compliant pile system of claim 1 wherein said pile jacket comprises: an inner sleeve, having an upper and lower end, concentrically positioned around said pile member and affixed at its proximate upper end to said upper end of said pile member; and an outer sleeve, having an upper and lower end, concentrically positioned around said inner sleeve, said outer sleeve having its proximate lower end affixed only to the proximate lower end of said inner sleeve and having its proximate upper end affixed only to said offshore structure at said second point. 5. The compliant pile system of claims 1, 3 or 4 including: a plurality of aligned, vertically spaced guides means affixed to said offshore structure at points intermediate the ends of said pile jacket, said pile jacket passing through said guides and having relative axial movement with respect thereto. 6. The compliant pile system of claim 1 wherein said pile system comprises a plurality of spaced pile elements. 7. A compliant pile system for supporting the vertical weight of a guyed tower structure of the type having a main truss member which extends between a marine bottom and the surface of a body of water and a plurality of guylines extending between said main truss member and said marine bottom to maintain said truss member in a vertical position, said pile system comprising: at least one pile element comprising: a pile jacket extending from the lower end of said main truss member to a point below the wave zone of said body of water, said pile jacket being affixed to only one point on said main truss member; and a pile member positioned within said pile jacket and extending from the top of said pile jacket to a point within said marine bottom, said pile member being affixed to said pile jacket only at the upper end of said pile member. 8. A compliant pile system for supporting the vertical weight of a guyed tower structure of the type having a main truss member which extends between a marine bottom and the surface of a body of water and a plurality of guylines extending between said main truss member and said marine bottom to maintain said truss member in a vertical position, said pile system comprising: at least one pile element comprising: a pile jacket, having an upper and lower end, extending from a first point of said main truss member to a second point on said main truss member, said second point being above said first point, said pile jacket affixed to said main truss structure only at the lower end of said pile jacket; and a pile member positioned through said pile jacket and extending from the upper end of said pile jacket to a point within said marine bottom, said pile member being affixed to the proximate upper end of said pile jacket at only the upper end of said pile member. 9. The compliant pile system for a guyed tower structure of claims 7 or 8 including: a plurality of aligned, vertically spaced guide means affixed along said main truss member at points intermediate the ends of said pile jacket, said pile jacket passing through said guides and having relative axial movement with respect thereto. 10. The compliant pile system for a guyed tower structure of claims 7 or 8 wherein said pile system comprises a plurality of pile elements laterally spaced within said main truss member. 11. A compliant pile system for supporting the vertical weight of a guyed tower structure of the type having a main truss member which extends between a marine bottom and the surface of a body of water and a plurality of guylines extending between said main truss member and said marine bottom to maintain said truss structure in a vertical position, said pile system comprising: at least one pile element comprising: (a) a pile jacket extending from a first point of said main truss structure to a second point on said main truss, said second point being above said first point; said pile jacket comprising: an outer sleeve, having an upper and lower end, affixed at its upper end to said second point on said main truss, and an inner sleeve, having an upper and lower end, concentrically positioned within said outer sleeve, said inner and outer sleeves being affixed to each other at their proximate lower ends; and (b) a pile member positioned through said inner sleeve of said pile jacket and extending from the top of said pile jacket to within said marine bottom, said pile member being affixed to said inner sleeve only at the proximate upper end of said inner sleeve. 12. The compliant pile system for a guyed tower structure of claims 8 or 11 wherein said second point being below the wave zone of said body of water. 13. The compliant pile system for a guyed tower structure of claim 11 including: a plurality of aligned, vertically spaced guide means affixed along said main truss member at points intermediate the ends of said pile jacket, said pile jacket passing through said guides and having relative axial movement with respect thereto. 14. The compliant pile system for a guyed tower structure of claims 11 or 13 wherein said system comprises a plurality of pile elements laterally spaced within said main truss member.
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