The Analysis Of Differential Settlement At The End Of Bbridge And Culvert Of Freeway And The Especially Construction Technic

The highway is important life vein of the national economy, because of the its special superiority and vivid, bring into play the function that other conveyance methods can't act for. But from the structure thing and back roadbed differential settlement on abutment bump is one of the eight main common faults of freeways, How ease or the eliminate, which is the task that must be solved in the freeway construction.The paper combines the Ji (JiYuan) Jiao (JiaoZuo) freeway back roadbed treatment project, in checking the foundation of a great deal of domestic and international cultural data, analyzing the harm of abutment bump; According to the form of the bridge & culvert, analyze the abutment bump principle; Passing to the inquisition abutment, analyze the reason for differential; Summarizing domestic and international the abutment jump normal regulations of the processing method, on this foundation putting forward the bridge & culvert special processing technique project on the bridge & culvert back roadbed: from ground treatment, back roadbed, surface treatment and drainage measures, etc. to study the comprehensive prevention and cure technic. the geogrid method, the dynamic consolidation and the method of graded gravel backing to fill, establish the twosome slab to the method. The paper text makes use of the layering total method and SIGMAs to analyze the method respectively to set carry the back roadbed settlement to decline the calculation, check to calculate the settlement special processing technique; make use of the FLAC number analysis method to study the bridge & culver back roadbed out of line distortion, making use of the SLOPE analyse the stability of conical slope and slope, verify the possibility of special. At the same time this paper puts forward the suggestion for that the special processing technique is studied more.