INVESTIGATION OF ICE LIMITS TO ICE GOUGING

机译：刨冰极限的调查

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This paper describes work that was initiated in 2001 as a Joint Industry Project, to address the issue of how ice processes may limit ice gouge depths and to develop an alternative approach to predicting design burial depths for pipelines in ice regions. An Ice Gouging Model was developed which enables maximum gouge depths to be determined for a range of soil and ice parameters. The analyses were divided into two categories, depending on whether the keel was assumed to fail by horizontal shear, or locally at the ice-soil interface. Local failure of the ridge keel is more likely than by horizontal shear plane. The model was run deterministically and probabilistically. The deterministic runs showed that the maximum gouge depth was most sensitive to the ice keel strength, the keel angle, and the soil strength. Exercising the model in a probabilistic mode enables ice gouge statistics to be simulated for regions where no ice gouge surveys have been conducted and/or where it is suspected that wave action eliminates the ice gouge record.

机译：本文介绍了2001年作为联合工业项目启动的工作，目的是解决制冰过程如何限制刨冰深度的问题，并开发一种替代方法来预测冰区管道的设计埋深。开发了一种冰凿模型，该模型能够确定各种土壤和冰参数的最大凿深度。根据将龙骨假定为水平剪切破坏还是在冰-土界面局部破坏，将分析分为两类。脊龙骨的局部失效比水平剪切平面更有可能。该模型是确定性和概率性地运行的。确定性试验表明，最大凿深对冰龙骨强度，龙骨角度和土壤强度最敏感。以概率模式运行该模型可以针对尚未进行过冰积调查和/或怀疑波浪作用消除了冰积记录的区域模拟冰积统计。

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《International Conference on Port and Ocean Engineering under Arctic Conditions(POAC'05) vol.1; 20050626-3002; Potsdam,NY(US)》|2005年|P.23-32|共10页
会议地点 PotsdamNY(US)
作者
Ken Croasdale; George Comfort; Ken Been;
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作者单位

K.R. Croasdale Associates Ltd., Calgary, Alberta, Canada;

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会议组织
原文格式 PDF
正文语种 eng
中图分类港口工程;海洋工程;
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INVESTIGATION OF ICE LIMITS TO ICE GOUGING

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