文档介绍：中华人民共和国教育部
东北林业大学
毕业论文
论文题目: 铁路路基翻浆冒泥的机理及治理措施
学生: 刘志
指导教师: 杨林副教授
学院: 成人教育学院
专业年级: 2012级(哈铁) 土木工程
2013年 1月
铁路路基翻浆冒泥的机理及整治措施
摘要
路基是铁路轨道的基础,它承受铁路轨道的重量及机车车辆的动力荷载,同时还不断遭受到水流、风沙、雨雪、严寒、高温等的侵袭和各种不良地质条件及人为因素的影响。翻浆冒泥是基床土受地面水或地下水的浸湿软化或液化后形成的泥浆,在列车动荷载作用下形成沿道床道碴的空隙向表面涌出的一种路基病害现象,已成为影响铁路安全和运营的顽疾,每年需花费巨资整治路基翻浆冒泥,严重影响了线路的正常运营和铁路的大提速。文章在探求路基翻浆冒泥的机理的基础上,对现有病害探测和维修检测的方法进行了分析,并对现有路基基床翻浆冒泥整治技术进行了对比研究。对比分析表明:路基翻浆冒泥是多个影响因素共同作用的结果,但同时不同路基翻浆冒泥产生的原因也有差别,因此,已有许多学者对铁路路基翻浆冒泥产生的原因、处置措施的机理和效果进行了对应的分析,并通过采取一系列的工程措施,达到提高岩土的力学强度和变形模量,提高路基承载力,控制不均匀沉降,减少翻浆冒泥的目的。
关键词:铁路路基;翻浆冒泥;机理;整治措施
Railway roadbed at the mechanism and the abundant mud control measures
Abstract
Embankment is the foundation of railway track, which bear the weight of the railway track and otive vehicle dynamic load, but also constantly subjected to water, wind and sand, snow, cold, high temperature and other attacks and all kinds of bad geological condition and the influence of the artificial factor. Pumping take mud is bed soil by surface water or groundwater soaked softening or liquefied form after the mud in the train moving loads formed along the ballast bed ballast gap to the surface from a roadbed disease phenomenon, has e a persistent ailment of the railway safety and operation effect, every year need to spend a huge improvement subgrade frost heave take mud, seriously affected the normal operation of the railway line and the speed. Based on the search subgrade frost heave take mud mechanism on the basis of the existing disease detection and maintenance detection methods are analyzed, and the existing subgrade bed mud pumping risk control technology makes parative study. Comparative analysis shows that the subgrade frost heave take mud is more influencing factors the result of joint action, but at the same time different subgrade frost heave take mud causes also have difference, therefore, there are many scholars for railway subgrade frost heave take mud causes and treatment measures of the mechanism and the effec