永久冻土
结算(财务)
管道(软件)
岩土工程
地质学
管道运输
法律工程学
环境科学
工程类
土木工程
采矿工程
环境工程
海洋学
计算机科学
机械工程
万维网
付款
出处
期刊:Transportation Engineering Journal of ASCE
[American Society of Civil Engineers]
日期:1972-08-01
卷期号:98 (3): 477-491
被引量:7
标识
DOI:10.1061/tpejan.0000242
摘要
A buried oil pipeline in permafrost will thaw the frozen soil around it, and will settle as the thawed soil consolidates. Because the amount of ice in the soil varies from point to point along the pipe alignment, the settlement will be uneven, and will induce bending in the pipe. Thaw settlement estimates from single boreholes give no information about the possible magnitude of differential settlements, and instead statistical measures of the intensity of fluctuations in thaw settlement have to be used. Alternative sources of the required data are suggested, and two different ways of estimating the effects on the pipe are described, one way being based on random process theory and the other on statistical simulation. The flexural stiffness of the pipe modifies the settlement, and methods of taking this effect into account are explained.
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