摘要
通风管冷却系统是一种普遍应用的防止冻土退化的工程处理措施。针对青藏铁路高温冻土路段通风管设计与施工中的基本问题 ,通过系统数值仿真试验结果 ,考虑了通风管管间距 ,通风管管径以及通风管埋设高度等因素对冻土路基温度场的影响 ,分析了通风路基在各种因素影响下的冷却效果 ,再考虑到通风管的变形与强度以及冻土路基的稳定性要求 。
Ventilating pipeline system is a treatment measurement used widely for anti-degradation of frozen soil.For the basic problem in design and practice of ventilating pipeline in section of high way for Qinghai-Tibetan railway with higher temperature frozen soil zone,by results of systematical simulation test,influence of factors such as space between pipes and diameter as well as embedded depth of ventilating pipe on temperature field of bed in frozen soil was considered,deformation and strength of ventilating pipe and stability of frozen soil bed as well,then the cooling effect on ventilated bed affected by that factors was analyzed,the design principle of ventilating pipeline bed was proposed.
出处
《土木工程学报》
EI
CSCD
北大核心
2005年第2期81-86,共6页
China Civil Engineering Journal
基金
中国科学院知识创新工程重大项目 (No KZCX1 SW 0 4 )资助
关键词
冻土
通风管
温度场
数值仿真试验
设计原则
frozen soil
ventilating pipe
temperature field
numerical test
design principle
