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Pull-down type multi-stage auxiliary sinking device and sinking method for cylindrical foundation
The invention discloses a pull-down barrel type foundation multistage auxiliary sinking device and sinking method, and relates to the technical field of offshore wind power, the pull-down barrel type foundation multistage auxiliary sinking device comprises a plurality of steel auxiliary barrels, and the auxiliary barrels are distributed around a main barrel type foundation in a radioactive mode; transition sections are arranged at the upper parts of the auxiliary barrels; connecting frames are arranged at the tops of the transition sections to connect all the auxiliary barrels into a whole; the main cylinder type foundation stand column is provided with multi-stage hanging points with different heights and is in tensioning connection with the auxiliary cylinder through a mooring rope. A multi-stage auxiliary sinking method is adopted, and the problem that the maximum available pressure difference of the barrel type foundation is smaller than the sinking resistance under the conditions that the sinking resistance is large and the water depth is small is solved; meanwhile, the auxiliary cylinder repeatedly sinks in a shallow soft soil body in a multi-stage mode, the self-sinking resistance is small, and the risk of negative pressure buckling is reduced.
本发明公开了一种下拉式筒型基础多级辅助沉放装置及沉放方法，涉及海上风电技术领域，包括多个钢制辅助筒，辅助筒放射性分布于主筒型基础周围；辅助筒上部设置过渡段，过渡段顶部设置连接架将所有辅助筒连接成为一个整体；主筒型基础立柱设置不同高度多级挂点，通过缆绳与辅助筒张紧连接；本发明采用多级辅助下沉的方法，解决了下沉阻力较大、水深较浅情况下筒型基础最大可用压差小于下沉阻力的难题；同时，辅助筒在浅层较软土体多级反复下沉，自身下沉阻力较小，降低负压屈曲的风险。
Pull-down type multi-stage auxiliary sinking device and sinking method for cylindrical foundation
The invention discloses a pull-down barrel type foundation multistage auxiliary sinking device and sinking method, and relates to the technical field of offshore wind power, the pull-down barrel type foundation multistage auxiliary sinking device comprises a plurality of steel auxiliary barrels, and the auxiliary barrels are distributed around a main barrel type foundation in a radioactive mode; transition sections are arranged at the upper parts of the auxiliary barrels; connecting frames are arranged at the tops of the transition sections to connect all the auxiliary barrels into a whole; the main cylinder type foundation stand column is provided with multi-stage hanging points with different heights and is in tensioning connection with the auxiliary cylinder through a mooring rope. A multi-stage auxiliary sinking method is adopted, and the problem that the maximum available pressure difference of the barrel type foundation is smaller than the sinking resistance under the conditions that the sinking resistance is large and the water depth is small is solved; meanwhile, the auxiliary cylinder repeatedly sinks in a shallow soft soil body in a multi-stage mode, the self-sinking resistance is small, and the risk of negative pressure buckling is reduced.
本发明公开了一种下拉式筒型基础多级辅助沉放装置及沉放方法，涉及海上风电技术领域，包括多个钢制辅助筒，辅助筒放射性分布于主筒型基础周围；辅助筒上部设置过渡段，过渡段顶部设置连接架将所有辅助筒连接成为一个整体；主筒型基础立柱设置不同高度多级挂点，通过缆绳与辅助筒张紧连接；本发明采用多级辅助下沉的方法，解决了下沉阻力较大、水深较浅情况下筒型基础最大可用压差小于下沉阻力的难题；同时，辅助筒在浅层较软土体多级反复下沉，自身下沉阻力较小，降低负压屈曲的风险。
Pull-down type multi-stage auxiliary sinking device and sinking method for cylindrical foundation
一种下拉式筒型基础多级辅助沉放装置及沉放方法
YANG XU (author) / LIAN JIJIAN (author) / YAO YE (author) / YAN XIANG (author) / FENG WEIPENG (author)
2024-03-15
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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