Special features of frost heave of a buried chilled gas pipeline

被引：0

作者：

Grechishchev, SE ^{[1
]}

Magomedgadzhieva, MA ^{[1
]}

Dmitrieva, SP ^{[1
]}

机构：

[1] State Engn Designing Res Inst Fundamentproject, Moscow, Russia

来源：

PROCEEDINGS OF THE FIFTEENTH (2005) INTERNATIONAL OFFSHORE AND POLAR ENGINEERING CONFERENCE, VOL 2 | 2005年

关键词：

frost heave; freezing rate; freezing soils; stress-strain state; linear load; buried chilled gas pipeline; permeability coefficient;

D O I：

暂无

中图分类号：

P75 [海洋工程];

学科分类号：

0814 ; 081505 ; 0824 ; 082401 ;

摘要：

A method of estimating the maximum additional linear load on pipelines from frost heave, based on mathematical simulation, is presented and documented. This method includes the simulation of the freezing around the pipeline and stresses in the surrounding soil. Analysis of the the simulation results revealed the following special features of the process: the maximum linear load from frost heave increases with a decrease of the permeability coefficient of the soil, and with an increase in the freezing rate of the soil; application of thermal insulation to the pipeline results in a decrease in the linear load of frost heave. Appropriate thermal insulation can eliminate frost heave entirely.

引用

页码：57 / 61

页数：5