路基工程
路基工程
로기공정
SUBGRADE ENGINEERING
2011年
4期
141-143
,共3页
软式透水管%路基%冻害%效果
軟式透水管%路基%凍害%效果
연식투수관%로기%동해%효과
flexible permeable hose%subgrade%freezing damage%effect
路基冻害严重影响了铁路提速,相关部门曾用过一些措施处理,但效果不明显。介绍以新型土工合成材料软式透水管整治兰新铁路路基冻害,通过对现场实测路基含水率、路基冻胀量及路基地温变化的分析表明,软式透水管在路基中具有通风、疏干排水等的作用,在抑制路基冻胀方面的效果很显著。
路基凍害嚴重影響瞭鐵路提速,相關部門曾用過一些措施處理,但效果不明顯。介紹以新型土工閤成材料軟式透水管整治蘭新鐵路路基凍害,通過對現場實測路基含水率、路基凍脹量及路基地溫變化的分析錶明,軟式透水管在路基中具有通風、疏榦排水等的作用,在抑製路基凍脹方麵的效果很顯著。
로기동해엄중영향료철로제속,상관부문증용과일사조시처리,단효과불명현。개소이신형토공합성재료연식투수관정치란신철로로기동해,통과대현장실측로기함수솔、로기동창량급로기지온변화적분석표명,연식투수관재로기중구유통풍、소간배수등적작용,재억제로기동창방면적효과흔현저。
Subgrade freezing damage seriously influenced railway speed-raising.The corresponding department ever took some measures to treat the damage,but the effect was not satisfactory.In this paper,flexible permeable hose made by the new type geo-synthetics is introduced to treat subgrade freezing damage in Lanzhou-Xinjiang Railway.Through analyzing the measured water content,frost heaving amount and ground temperature change in relation to subgrade,it is shown that flexible permeable hose works for good ventilation and water drainage in subgrade,which has significant effect in inhibiting freezing damage.
