国外项目中大型沉箱的预制、出运在设备资源匮乏的条件下是一个较大的难题。以柬埔寨燃煤电厂工程为例，介绍围堰内预制沉箱、起重船吊扶沉箱工艺，克服了传统出运方式的局限性，在没有沉箱预制场和专用出运设施条件下实施了沉箱预制和出运；介绍起重船吊扶沉箱过程中吊点设置、密封处理、没顶沉箱安装过程中的计算及施工关键技术。该工程的成功实践，可为国外大型沉箱的预制和出运安装提供借鉴。

The prefabrication and shipment of large caisson is difficult under the condition of lacking for foreign equipment re-sources. Taking Cambodia coal-fired power plant project as example, this paper introduces the technologies of prefabricating caisson in the cofferdam and floating crane lifting caisson, overcomes the limitation of traditional shipping way, and realizes the possibility of caisson prefabrication and shipment without precast yard and the special facilities for shipping. It introduces the calculating and key technique of construction of lifting point setting, sealing and submerging installation process over the floating crane lifting caisson operation. The successful practice of this project provides references for the prefabrication and shipment of large caisson abroad.

为研究深水海洋工程船起重工况下的吊索附加动力载荷，选取我国第一艘深水起重铺管船“海洋石油201”作为研究对象，运用三维势流理论以及基于三维面元法的水动力程序分析了船舶的运动响应传递函数，进行了起重工况下运动响应短期预报，推导了吊头运动下的吊物运动方程，计算了载荷传递函数，并利用短期预报公式计算了吊索附加动力载荷短期预报值分析。该研究为起重铺管船的设计提供了参考，并提供了一种适合深水起重船附加动力载荷计算的可行方法。

In order to study additional dynamic load of a lifting rope in a deepwater pipelay crane vessel, the first Chinese deepwater pipelay crane vessel, Haiyangshiyou 201, was used as a case study in this paper. The researchers applied the assumption of 3D potential flow theory and the 3D panel method program to compute motion response re-sponse amplitude operator( RAO) and predict short term response during craning. Motion response equations of lifted objects were derived and load RAOs were carried out. Next, short term prediction value of additional dynamic load was computed using short term prediction formula. The research provides reference to the design of pipelay crane ves-sel, as well as an available method for calculating additional dynamic load suitable for deep water crane vessels.

深水起重船是海洋油气开发、海上风电设备安装中不可缺少的一项重要装备。以一艘最大起重能力达16000 t的半潜式起重船为研究对象,分别用数值模拟和模型试验的方法研究其空勾和最大起重时在波浪作用下的运动性能。数值模拟方法基于三维线性势流理论,分别从频域和时域两个方面分析,在起重作业时考虑船体和重物两体之间的相互耦合作用,得到船体和重物运动的RAO和运动时例曲线;在上海交通大学深水池中对该起重船进行了静水衰减、白噪声和不规则波的模型试验,其分析结果与数值模拟方法相对比。结果表明,数值模拟和模型试验得到的结果非常吻合,数值模拟方法具有较高的可靠性;半潜式起重铺管船在波浪中拥有良好的运动性能,在文中列出的海况下能够安全地进行作业。

Deepwater crane vessel is necessary equipment for the installation of offshore wind driven gen-erator and the development of ocean petroleum and gas. This paper investigated the lifting process of a se-mi-submersible crane vessel with 16 000 t lifting capacity by numerical and experimental analysis. Nu-merical analyses based on 3D potential flow theory in both frequency and time domain were carried out for full-lifting and empty-lifting configuration during lifting operation. Corresponding model tests were also performed in deep water basin of Shanghai Jiao Tong University. The comparison between numerical and experimental results shows that the response amplitude operator and time series agree quite well. The se-mi-submersible crane vessel has very favorable hydrodynamic behavior in considered sea state and the loads of equipments are allowable.

为推动中国海洋石油开发从近海走向深海,中国海洋石油总公司于"十一五"提出深水发展战略;包括深水铺管起重船"海洋石油201"在内的"五型六船"深水重大装备研制,是该战略的重要组成部分。论文总结了中国第一艘深水铺管起重船"海洋石油201"研制的背景、过程、主要技术创新以及对中国海洋石油工业的重要意义,为今后类似深水重大装备研制提供借鉴。

In order to speed up exploration and development of offshore oil and gas in China from shallow water to deepwater, China National Offshore Oil Corporation (CNOOC) set up deepwater development strategy to build her own “Five Types Six Vessels” deepwater fleet in the Eleventh Five-Year period, and the development of deepwater pipelay crane vessel“Hai Yang Shi You 201”was one of the major equipment of the strategy. This paper summarizes the background, process, main technical innovations of the first deepwater pipelay crane vessel “HAI YANG SHI YOU 201” in China and its great contributions to the development of china offshore oil industry, which will provide reference for future development of similar deepwater vessel.

深水铺管起重船"海洋石油201"是我国首艘DP3级动力定位工程船舶,该船采用全电力变频驱动推进系统。可靠的电力系统是动力定位船舶稳定运行的关键。功率管理系统(PMS)能够全面获悉电力系统状态,并能迅速有效地执行相应动作,防止全船发生失电。论文介绍了深水铺管起重船电力系统概况,并对PMS在该船的应用及特点进行阐述。对船舶电站的监测与控制、重载问询、负载控制、功率限制、全船失电自动恢复等PMS功能进行了分析,可为动力定位船舶的PMS系统设计提供借鉴。

Deepwater pipelay crane vessel “Hai Yang Shi You 201” is a DP3 class of dynamic positioning construction vessel. With the use of variable frequency drives, a dependable power source is critical for the successful operation of a dynamically positioned vessel. This paper provides an overview on the DPV power system. The application and features of power management system (PMS) is elaborated and researched. The PMS functions are analyzed such as generator control and monitoring, load sharing, start blocking of heavy consumers, blackout restart, and consumer load limitation. This paper can provide a reference for the PMS design of dynamic positioning vessel.