疏干排水孔群整治路基冻胀的效果分析

Analysis on the Effectiveness of the Treatment of Roadbed Freezing Expansion with Dewatering of Drainhole Group

根据兰新铁路路基土的冻胀特性,阐述了疏干排水孔群治理路基冻害的方法和机理,通过分析兰新线试验段内路基含水量的变化,同时通过在试验段上行用疏干排水孔整治和下行未整治作对比,来分析试验段冻胀量的变化,得出疏干排水孔群方法治理路基冻胀具有显著的效果,为其他铁路病害的治理起到一定的借鉴作用。

According to the frost heaving characteristics of roadbed soils of Lanzhou-Xinjiang Railway, this expounds the methods and principles of dewatering of drainhole group in the treatment of roadbed freezing through analyzing the change of water content of the roadbed within the test section of Lanzhou-Xinjiang damag paper e, and Railway, andthrough the comparison of implementing the treatment of dewatering of drainhole group along up direction and no implementing the treatment of dewatering of drainhole group along down direction in the test section, analyzes the changesof the frostheave capacity of the test section, and draws the conclusion that the method of dewatering of drainhole group in the treatment of roadbed freezing expansion has remarkable effect and can be used for reference in the treatment of other railway diseases.