Study Of Three-Dimensional Survey Method Used In Design Of Road Engineering

Along with the booming development that the our country highway constuct, superhighway increases continuously, the highway surveys the mission of design also increasingly heavy.Currently, the highway calculator assistance design the technique is already extensive applied in highway the design is medium, and produced the huge economic performance and social performances.The highway measures to establish to is divided in to survey( outside industry) and the design( inside industry) two greatest links, the initial mission that survey is the geography data to acquire.The traditional highway measures to establish the method is to will survey the work decomposition to become plan, vertical , horizontal three part measures respectively, this is tantamount to is divided into an engineering factitiously three part, three of part of datases lack the inside contact, especially the cross section data also without inside contact.Design the process in also carry on the design respectively according to these three part of datas, then consider even, vertical , horizontal coordination problem.The design project and whole results of the engineering only with design experience decision, exist in the design bigger at will sex, and is hard to attain to design the result superior to turn.Moreover some highways of unit measure to establish the method that the main adoption artificial imitates the illustrated manual table to survey and map the big scale geography diagram, then read from the diagram or turn the instrument to collect the geography data to carry on the initial design with the numeral;At start construction the diagram stage, then pass the way that open country actually measure to collect the data.Thus make the design fee work time-consuming, the efficiency is lowly.Along with the technical development of the calculator technique and spaces, the theories and methods of the model of the numerical ground are increasingly mature, the data collected the technique and meanses to also acquire the tremendous development, for the numerical high distance model( DEM) in the highway engineering of application provided the theories and practice the foundation.Usually the model( DTM) of the numerical ground speak is a more...