The invention discloses a novel suction anchor for anchoring an offshore floating structure. The novel suction anchor comprises an anchor body and steel bar type root hairs, the anchor body is of a steel cylindrical structure with the top closed and the bottom open, a vertical long-strip-shaped groove is formed in the outer wall of the anchor body, an air bag installation area and a root hair bonding area are reserved at the upper end of the long-strip-shaped groove, and a permanent fixing buckle is arranged at the lower end of the long-strip-shaped groove. The root hair is composed of a near-anchor-end rubber soft rope and a far-anchor-end steel bar, the near-anchor end of the root hair is fixed to the lower end of the strip-shaped groove through a permanent fixing buckle, the far-anchor end of the root hair is fixed to the bonding area through a water-based adhesive, and the air bag is installed in the air bag installation area and kept in a flat state. In the penetration process, all the steel bar type root hairs are gathered in the strip-shaped grooves, after penetration installation is completed, after water-based adhesive in a bonding area in seawater loses bonding force, the far-anchor end of the steel bar type root hairs loses constraint at the moment, then the air bag is continuously inflated, the far-anchor end of the steel bar type root hairs is slightly jacked up, the far-anchor end of the steel bar type root hairs is separated from the anchor body, and the steel bar type root hairs are fixed to the anchor body. And when the suction anchor generates uplift displacement, the suction anchor is slightly unfolded, so that the contact area between the whole suction anchor and a soil body is greatly increased, and the uplift bearing capacity is improved.
一种用于锚固海上漂浮式结构物的新型吸力锚,包括锚身以及钢条式根须;锚身为顶部封闭,底部开口的钢制圆筒状结构,锚身外壁设置竖向长条状凹槽,条状凹槽上端预留气囊安装区域与根须粘接区域,下端设置永久固定卡扣;根须由近锚端橡胶软绳与远锚端钢条两部分组成,其中根须的近锚端通过永久固定卡扣固定在条状凹槽下端,远锚端通过水性胶粘剂固定在粘接区域,气囊安装在气囊安装区域并保持扁平状态。在沉贯过程中,钢条式根须全部收拢在条状凹槽内,沉贯安装完成后,等待海水中粘结区域水性胶粘剂失去粘接力,此时钢条式根须远锚端失去约束,随后气囊持续充气,将钢条式根须远锚端略微顶起,实现钢条式根须远锚端与锚身分离,并在吸力锚产生上拔位移时略微展开,极大的增大整个吸力锚与土体的接触面积,提高抗拔承载力。
Novel suction anchor for anchoring offshore floating structure
一种用于锚固海上漂浮式结构物的新型吸力锚
18.06.2024
Patent
Elektronische Ressource
Chinesisch
IPC: | B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS |
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