东北多年冻土地区不良地质现象对铁路工程的危害及其防治

THE HAZARDS OF RAILWAY ENGINEERING CAUSED BY UNHEALTHY GEOLOGICAL PHENOMENA AT PERMAFROST AREA IN NORTH CHINA

由于东北地区的土层条件和严冬气候,导致了冻胀、冰椎、冰丘、厚层地下水融化沉降、热融沉陷、融冻滑塌、融冻泥流等一系列冻害现象。本文对上述观象的形成机制、分布规律、防治方法、调查勘探原则、研究内容以及选线和设计等进行了详细研究,并提出行之有效的建议。

In this paper, the effects are studied which caused by the railway disease onto railway engineering (roadbed, bridges and culverts, tunnels, buildings, water giving and drainage works, power communication installations) at North China Permafrost area; the formation cause type, mechanim and distribution law of unhealthy geological phenomena are analysed; experiences of railway building disease controling are sumed up; at last, some suggestions are proposed which deal with the environmental geology investigating, surveying and studing and the principle of railway line and building site selecting.