资源描述：
《既有线路基病害整治探讨.doc》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。
1、中文摘要中国铁路始建于1876年，铁路运输线是我国国民经济的大动脉，在我国交通运输体系中居于主导的骨干地位，它在国家的建设中占有重要地位。随着我国改革开放的深入，我国在修新线铁路时采用了国外先进科技成果，与此同时，对既有铁路进行补强和改造，并加强了对线路的养护和维修。较大的改善了铁路的运营状况，提高了铁路抵抗自然灾害的能力，丰富了预防和整治铁路线路病害的理论与实践，对发展国民经济，促进工农业生产，改善人民生活，改变边远地区交通闭塞和文化技术落后面貌，巩固国防，沟通国际交往，起到了国民经济大动脉的重要作用既有线路路基由于受修建时技术和经济条件的限
2、制，填筑压实标准往往较低。随着客货运量和机车车辆轴重的增加，出现翻浆冒泥、下沉和外挤等各种病害。上述路基病害严重影响线路的稳定性，增加养护维修工作量，缩短轨道上部结构的使用寿命，是影响铁路运输安全和运输能力提高的主要原因。在既有线提速和载重增加的情况下，路基荷载条件发生变化，线路维修中除对路基病害进行整治外，对部分路基还需要采取加固措施，提高承载能力，但是由于既有线运力和运能十分紧，路基处理从技术到管理都存在一些困难，既有线的路基病害是当前急需解决的重大课题。关键词基床病害坡面病害岸边冲刷病害泥石流病害路基病害AbstractChinaRail
3、waywasbuiltin1876,therailwaylineisourcountrythemainarteryofnationaleconomy,inourtransportsystemofthedominantpositioninnationalbackbone,itplaysanimportantroleinbuilding.WiththedeepeningofreforminChina,Chinaintherepairedrailwayadoptedtheresultsofdomesticandforeignadvancedtechn
4、ology,atthesametime,theexistingrailwayreinforcementandtransformation,andstrengthenthelinemaintenanceandrepair.Improvedrailroadoperationcondition,raisedrailroadtoresistnaturaldisasterability,enrichthepreventionandtreatmentofdiseasesoftherailwaylineoftheoryandpractice,tothedev
5、elopmentofthenationaleconomy,promoteindustrialandagriculturalproduction,theimprovementofpeople'sliving,changingremotetrafficisout-of-the-wayandbackwardculturetechnology,consolidatenationaldefence.Existing lines, due at technology built roadbed and economic condition restrict
6、ion, compaction standards often is low. Along with the increases of passenger traffics and the locomotive axle load, abundant appear at the clay, and sink and a squeeze of the disease. shorten the orbit of the upper structure, the service life of railway transportation sa
7、fety and transportation influence is the main reason for the ability to increase. In the existing railway-speed-increasing and capability, by increasing of the subgrade load conditions change, in addition to the line maintenance of roadbed disease outside regulation, to some
8、 of the roadbed reinforcement measures would need to take, improve the bear
