Researchs The Construction New Technique And Engineering Finacial Cast No Gravel Orbit Of Sui-Yu Line

No gravel orbit is a kind of orbit structure form that replaces conditional spreaded gravel orbit bed with concrete or asphaltum mixture. This kind of orbit has many strongpoints such as high orbit resilience ,prolonged geometry figure maintence,significant decreased maintain work. So it has got a quick development in railway construction of many countries.Especially in the high speed railway building,some countries has full applied this technique as main railway structure form.The aim of this article is to report the current condition of no gravel orbit,especially the develop history and present condition in foreign countries as Germany,Japan,France,England. This article also focus on the domestic no gravel orbit develop histry. The important meanings of no gravel orbit experiment carried on the Sui-Yu line are expatiuted.Sui-Yu line is the first railway segment paved no gravel orbit. The construction technics are researched.Different types of no gravel orbit and underline structure are tested to get relative deta and buliding experience. The construction of this tested segment has a very important signification of establishing our independent intelligent propetry right of ,Chinese special feature of no gravel orbit.This article researchs the project construction condition of Sui-Yu line ,analyzes the physiognomic characteristic and engineering geographical circumstance in the line region. The technique of plank type and double pieces type no gravel orbit bulidinh are studied too. The plank type orbit construction includes some pivotal procedure such as prepared orbit plank moulding ,under-plank concrete base moulding ,assembling orbit plank and CA grit slurry moulding. Double pieces type orbit construction includes the production,assembing ang paving double pieces crossties.The construction organizing basis,content and principle are investiged from opening preparing to large temperary engineering ,focusing on the rationality and scientific points. The manpower ,material, equipment of Sui-Yu line construction are also analyzed.At last,this article researchs the engineering finacial cast of Sui-Yu line,having a conclution that compared to gravel orbit, no gravel orbit has a better investment/income performance.Besides,this article analyzes many new material used in the no gravel orbit construction such as passenger transportation special line bifucation ,fastener and epoxy colophony eluting steel bar. The critical procedure efficiency is investiged by observating the scence construction. The building price indexs of every kilometer orbit are calculated and analytical researched.