Fig 5 Tension leg concept for deep water increased water depths. At present time, it appears that the main limitation on the tension-leg platform arises from dynamic inertia forces associated with the lateral oscillations of the platform in waves. These become significant at water depths of about 3000 ft From"Offshore Structural Engineering,, by Thomas H. Dawson, 1983 Technical Terms 1. template structure导管架平台(结构)9. current潮流 2. fixed offshore structure固定式近海平10. flat topped barge平顶驳船 台(结构) 1l. derrick barge起重船 3. jacket structure导管架平台(结构) 12. pile driver打桩船 4. prefabricated steel substructure预制钢13. bracing撑杆,拉紧连杆 质导管架(底座) 14. oil drilling and production platform石油 5. seafloor海底 钻井和生产平台 6.deck甲板(平台) 15. skirt piles裙桩 7.(pipe)pile(圆管)桩 16. hurricane飓风 8.leg桩腿,支线 17. base overturning moment对基倾覆力矩Fig. 5 Tension leg concept for deep water increased water depths. At present time, it appears that the main limitation on the tension-leg platform arises from dynamic inertia forces associated with the lateral oscillations of the platform in waves. These become significant at water depths of about 3000 ft. (From “ Offshore Structural Engineering”, by Thomas H. Dawson, 1983 Technical Terms 1. template structure 导管架平台（结构） 2. fixed offshore structure 固定式近海平 台（结构） 3. jacket structure 导管架平台（结构） 4. prefabricated steel substructure 预制钢 质导管架（底座） 5. seafloor 海底 6. deck 甲板（平台） 7. (pipe)pile （圆管）桩 8. leg 桩腿，支线 9. current 潮流 10. flat topped barge 平顶驳船 11. derrick barge 起重船 12. pile driver 打桩船 13. bracing 撑杆，拉紧连杆 14. oil drilling and production platform 石油 钻井和生产平台 15. skirt piles 裙桩 16. hurricane 飓风 17. base overturning moment 对基倾覆力矩