The fall in international oil prices,which began in the second half of 2014,had a severe impact on the economy of Saudi Arabia,and the country began to adjust its economic development policy.The main contents include:...The fall in international oil prices,which began in the second half of 2014,had a severe impact on the economy of Saudi Arabia,and the country began to adjust its economic development policy.The main contents include:changes in the allocation of resources from reliance on government intervention to reliance on the dominance of market;government revenue shifts from dependence on oil revenues to expansion of non-oil revenues;industrial structural changes from excessive dependence on oil economy to diversification in the field of new energy and mining;enterprise ownership structure changes from nationalization to privatization;source of investment funds shifting from basically relying on domestic investment to paying attention to foreign investment;labor and employment change from relying on foreign workers to a trend of localization in Saudi Arabia.Combining priorities in the economic development if Saudi Arabia with the key areas of the“One Belt and One Road”Initiative,energy security,cooperation capacity,infrastructure and finance are the most promising fields in bilateral economic cooperation.展开更多
In 2010,the first offshore wind turbine with integrated installation was established in Qidong sea area of Jiangsu Province,China,which led to the implementation phase of one-step-installation technique based on the d...In 2010,the first offshore wind turbine with integrated installation was established in Qidong sea area of Jiangsu Province,China,which led to the implementation phase of one-step-installation technique based on the design and construction of large-scale bucket-top-bearing (LSBTB) bucket foundation.The critical technique of LSBTB bucket foundation included self-floating towing,penetration with adjustment of horizontal levelness,removability and one-step-installation.The process of one-step-installation included the prefabrication of LSBTB bucket foundation in onshore construction base,installation and debugging of wind power,overall water transportation of foundation and wind power system,and installation of foundation and offshore wind turbine on the appointed sea area.The cost of one-step-installation technique was about 5 000 Yuan/kW,which was 30%-50% lower than that of the existing technique.The prefabrication of LSBTB bucket foundation took about two months.During the one-step-installation process,the installation and debugging of wind power and overall water transportation need about one to two days in sea area within 35 m depth.After the proposed technique is industrialized,the cost will be further reduced,and the installation capacity is expected to be up to 500 wind turbines per year.展开更多
文摘The fall in international oil prices,which began in the second half of 2014,had a severe impact on the economy of Saudi Arabia,and the country began to adjust its economic development policy.The main contents include:changes in the allocation of resources from reliance on government intervention to reliance on the dominance of market;government revenue shifts from dependence on oil revenues to expansion of non-oil revenues;industrial structural changes from excessive dependence on oil economy to diversification in the field of new energy and mining;enterprise ownership structure changes from nationalization to privatization;source of investment funds shifting from basically relying on domestic investment to paying attention to foreign investment;labor and employment change from relying on foreign workers to a trend of localization in Saudi Arabia.Combining priorities in the economic development if Saudi Arabia with the key areas of the“One Belt and One Road”Initiative,energy security,cooperation capacity,infrastructure and finance are the most promising fields in bilateral economic cooperation.
基金Supported by National High Technology Research and Development Program of China("863"Program,No.2012AA051705)National Natural Science Foundation of China(No.51109160)International Science and Technology Cooperation Program of China(No.2012DFA70490)
文摘In 2010,the first offshore wind turbine with integrated installation was established in Qidong sea area of Jiangsu Province,China,which led to the implementation phase of one-step-installation technique based on the design and construction of large-scale bucket-top-bearing (LSBTB) bucket foundation.The critical technique of LSBTB bucket foundation included self-floating towing,penetration with adjustment of horizontal levelness,removability and one-step-installation.The process of one-step-installation included the prefabrication of LSBTB bucket foundation in onshore construction base,installation and debugging of wind power,overall water transportation of foundation and wind power system,and installation of foundation and offshore wind turbine on the appointed sea area.The cost of one-step-installation technique was about 5 000 Yuan/kW,which was 30%-50% lower than that of the existing technique.The prefabrication of LSBTB bucket foundation took about two months.During the one-step-installation process,the installation and debugging of wind power and overall water transportation need about one to two days in sea area within 35 m depth.After the proposed technique is industrialized,the cost will be further reduced,and the installation capacity is expected to be up to 500 wind turbines per year.
