A Study On Bottom Roadbed Cross Section And Height Pattern Special Geology Of Plateau Environment (The Gobi Desert Region)

Along with the rapid development of the domestic economy,network density in the place continuously enlarges,in order to promise a roadbed stability,solve soil and marsh diagram because of freezing soil and salt for several years to the damage of the highway,force superhighway roadbed and highly and continuously raise,not only and excessively take up rare land resources,steppe resources or forestry resources,enlarge engineering scale and engineering difficulty,increase engineering investment and engineering work and expect,and bring a many other problem,these the problem have already caused the high value of the all levels section,especially some design units have already started changing a design principle and put forward the low roadbed project of superhighway designs of way of thinking.In the flourishing nation,superhighway construction and development a little bit early,highly also early have a research to the superhighway roadbed,and apply in the actual engineering also a lot of.But in our country,just started to the superhighway design principle of the low roadbed and the research of the design method,however a few superhighways that have already set up proved,it is viable in our country to construct low roadbed super highway.Therefore,this item combines green hide plateau Qinghai of province Gobi desert the special of the hungriness area signs of human being rarely seen region,developing a low construction technique research in low roadbed superhighway,trying to put forward to guide green hide plateau of signs of human being low roadbed superhighway in the rarely seen region constructing of practical way and instruction opinion.This text have a study around the choice of construction mode of superhighway and roadbed cross section form in Gobi desert area of Tibetan Plateau,combining the characteristics of Gobi desert area of Tibetan Plateau in Qinghai province,put forward the minimum roadbed height of superhighway in design medium;considering the influence of animal passage,we make model of the roadbed height reasonable by some methods,and combine the actual circumstance of studying the district,we put forward a reasonable scope of the roadbed height in superhighway.