海上吸力筒导管架基础沉贯吸力计算分析  

Calculation and analysis of penetration force on offshore suction bucket jacket foundation

作　　者：牛庆磊[1] 宋刚[1] 崔淑英[1] 寇贝贝 田振亚 田英英 NIU Qinglei;SONG Gang;CUI Shuying;KOU Beibei;TIAN Zhenya;TIAN Yingying(Institute of Exploration Techniques,CAGS,Langfang Hebei 065000,China;Guangzhou Marine Geological Survey,China Geological Survey,Guangzhou Guangdong 510075,China;Yangjiang Offshore Wind Power Laboratory,Yangjiang Guangdong 529500,China)

机构地区：[1]中国地质科学院勘探技术研究所,河北廊坊065000 [2]中国地质调查局广州海洋地质调查局,广东广州510075 [3]阳江海上风电实验室,广东阳江529500

出　　处：《钻探工程》2023年第2期31-38,共8页Drilling Engineering

基　　金：广东省重点领域研发计划项目“海域天然气水合物随钻测井和钻采井口稳定关键技术及装备研发”(编号:2020B1111030003)、“海上风电吸力筒导管架基础高效多体联动沉贯装备研制与产业化”(编号:2021B07073001);中国地质调查局地质调查项目“天然气水合物钻探技术支撑(勘探技术所)”(编号:DD20221721)。

摘　　要：吸力筒基础作为一种高效、经济、环境友好的基础形式,在海洋工程特别是海上风电领域得到了广泛的应用,多以吸力筒导管架形式出现。如何实现吸力筒安全、高效沉贯,并满足吸力筒导管架安装技术指标是施工设计的关键。本文系统总结了吸力筒基础在粘土和砂土地层中沉贯阻力、需求吸力和容许吸力计算方法。结合具体施工案例开展沉贯分析,预测了吸力筒的自重贯入深度,掌握了合理的吸力设置方法及容许吸力主要限制因素,为海上吸力筒导管架基础施工提供技术参考。As an efficient,economical and environmentally friendly foundation form,suction bucket foundation has been widely used in marine engineering.Among them,the jacket foundation supported by multiple suction bucket is widely used in the offshore wind power field.How to realize the safe and efficient penetration of the suction bucket and meet the technical indicators of the installation of the suction bucket jacket is the key to the construction design.This paper systematically summarizes the calculation methods of penetration resistance,required suction and allowable suction of suction bucket foundation in clay and sand layers.Based on specific construction cases,the penetration analysis is carried out,the self‑weight penetration depth of suction bucket is predicted,and the reasonable suction setting method and the main limiting factors of allowable suction are mastered,which provides technical reference for offshore construction of suction bucket jacket foundation.

关 键 词：吸力筒导管架 负压沉贯 吸力设置 海上风电 

分 类 号：P751[交通运输工程—港口、海岸及近海工程] TU476[天文地球—海洋科学]