Analysis Of Interaction Between Ice And Vertical&Concial Structure

The development of modern industry is inseparable from the energy supply. In recentyears, people keep exploring, and they make constant breakthrough on energy issues,including a lot of new energy research and development. However, oil as the representativeof industrial energy still plays an irreplaceable role in the major industry. So it needs peopleto overcome more difficulties, to search for oil resources in undeveloped regions. With theexpansion of oil exploration region, ocean oil exploration in ice domain becomes aninevitable problem. How to ensure the safety of oil platforms in the ice domain becomes aconcern for researchers.In a containing ice water, what kind of structure shape is ideal? Only a few basicshapes to choose: vertical&concial structure. It seems to be an easy simple model andapproximate calculation solved problem, but there are still many issues. Key factor mainlyincludes: estimate the structure of ice load, if ice can bypass structures, maneuverability andstructure of production costs. If you decide to use cone, Problem is not over. Still have todetermine the best Angle of the cone. Steep cone structure build is cheaper, but too steepcone structure, which kept the ice flexural failure will not occur. The extrusion load of icewill happen. So which cone can seem as steep? Conical structures towards up or down? Anice-breaking cones to put up the ice out of the water level, increases the vertical load, it willimpose greater load on the structure. In addition, to ensure the ice can’t climb too high toaffect the platform. But the problem is how high the ice can climb? If choose aice-breaking cones of facing downward, Ice was under pressure to conical structure,buoyancy load can be reduced, at the same time this method gave a lift, whether this willaffect the stability of structure, also have to consider is the material problem, because it isrelated to friction of ice on structures, to maintain a low friction to minimize load.For thepurpose of solving practical problems and facilitating the application, this paper combinethe actual situation, calculate the wave loads of the two anti-ice shape structure bynumerical simulation. Discussed the influence of these two structure in the marine platformleg in non-glacial time. Finally put forward suggestions of modern selection.This paper calculated the1and11different kinds of vertical cylindrical structureAngle of conical structure of ice load, Select geometry Angle to study the influence of ice load, through numerical simulation analysis on the cone Angle in the same externalconditions.This paper has introduced ice force model test of Li Chunhua, refer to the part of thetest data and the comparison between the theoretical model, finally get the smallest ice forcestructure.For the purpose of solving practical problems and facilitating the application, thispaper combine the actual situation, calculate the wave loads of the two anti-ice shapestructure by numerical simulation. Discussed the influence of these two structure in themarine platform leg in non-glacial time. Finally put forward suggestions of modernselection. In order to meet the need of anti-ice, and to solve the problem of wave loads risein non-glacial time, this paper start from three aspects as security, economy and applicability,put forward a design of single vertebral anti-ice leg device.