高速客运专线路基改良填料的试验研究  

Experimental Study on Improved Loess for Subgrade of High-speed Dedicated Passenger Special Lines

作　　者：马学宁[1] 梁波[2] 黄志军[1] 孙常新[3] 

机构地区：[1]兰州交通大学土木工程学院,甘肃兰州730070 [2]重庆交通学院土木建筑学院,重庆400074 [3]华北水利水电学院土木工程系,河南郑州450008

出　　处：《铁道学报》2005年第5期96-101,共6页Journal of the China Railway Society

基　　金：甘肃省自然科学基金资助项目(ZS031-B25-005-G);兰州交通大学"青蓝工程"基金资助项目

摘　　要：基于高速客运专线对路基变形的严格要求,路基填料改良已成为高速铁路必须解决的问题。本文通过大量的土工试验和理论分析,研究了石灰改良黄土和水泥改良黄土的强度机理、压缩特性、水稳定性、强度特性以及影响这两种改良材料工程力学特性的主要因素,并进行了对比分析,为黄土地区高速客运专线路基填料的选择和应用,提供了参考依据。Improving roadbed filling has become a critical problem to be solved in respect of high-speed railways since high-speed dedicated passenger lines have strict requirements to roadbed deformation. Through a large number of soil tests and theoretical analyses, the intensity mechanism, compactness, water-resistance and strength of improved-loess and major factors influencing their engineering mechanical properties are studied and compared. This gives reference to choice and application of roadbed filling for high-speed dedicated passenger lines in the loess region.

关 键 词：高速客运专线 黄土 石灰改良土 水泥改良土 对比分析 

分 类 号：U416.169[交通运输工程—道路与铁道工程]