海洋工程固结锚的结构与特性初探  

Basic structure of solidified maritime anchor and preliminary study on its characteristics

作　　者：张午迪 张民曦 喻国良 ZHANG Wudi;ZHANG Minxi;YU Guoliang(State Key Laboratory of Ocean Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration,Shanghai Jiao Tong University,Shanghai 200240,China;The School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海交通大学海洋工程国家重点实验室,上海200240 [2]高新船舶与深海开发装备协同创新中心,上海200240 [3]上海交通大学船舶海洋与建筑工程学院,上海200240

出　　处：《海洋工程》2019年第1期117-126,共10页The Ocean Engineering

基　　金：教育部联合基金"自适应地声通信传感桩的概念及机理研究"资助项目(6141A02022337)

摘　　要：介绍了一种拥有自主知识产权的海工固结锚技术,描述了该新型锚的内部结构和工作原理;并在室内对不同设计参数和使用工况的锚开展了垂向上拔试验,初探了其抗拔能力。初步试验表明:该新型锚具有超高的抓重比;其次生固结体显著增加了锚体的剪切面积,从而大大提升了锚体的抗拔力;锚体结构上宜具有多个喷管且喷管管径较粗,安装过程中对固化剂的推进速度应较缓。该新型锚应具有良好的应用前景,但需对此进一步深入研究,以满足其设计和工程应用的要求。A new kind of anchor which is a solidified type of anchor patented by our research group is introduced.Its structure and working mechanism are presented,which are completely different from those of modern anchors.Pullout tests were conducted in laboratory using different geometric designs of anchor and different experiment setups.It was shown through laboratory experiments that this solidified maritime anchor had superior anchorage performance with super high holding-weight ratio and was able to be subjected to the vertical loading.The secondary solidified body after anchor installation significantly increased the shear area of the anchor body and then greatly enhanced its pullout capacity.The solidified maritime anchor should have many nozzles with a relatively big nozzle diameter,and the injection speed of the solidified agents should be relatively slow.The new anchor would have a good potential application prospect,but further research is necessary to meet the requirements of design and engineering application.

关 键 词：海工固结锚 抓重比 固化剂 抗拔力 沉积海床 上拔试验 

分 类 号：P751[交通运输工程—港口、海岸及近海工程]