Research On Methods Of Plane Computation In Reconstructing An Existing Railway Line And Expanding The Second-Line And Software Empoldered

Railway transportation and build in China it has to be extremely important status and function in the socio-economic developmenting. Railway transportation is backbone and subject of the transport network, is the key to building the comprehensive transportation network of China. With the constant enlargement of national economy and foreign trade, Volume of passenger transport and goods transported increases by a large margin year by year. Besides building essential new line in a large amount in the future, reconstructing the existing railway lines in order to improve the transport capacity of the railway, it is a great measure with little investment , with instant effect, and a long-term task of the railway construction of our country too. It has a lot of problem in reconstructing the existing railway lines such as the wiredly complicated questions, a lot of things widely involved ,and enormous investment. So it is key to reconstructing the existing railway lines that getting high-quality design plan of reconstruct fastly by advanced scientific and technical means and method, that is the problem needing to study urgently at present.This thesis is on the basis of analysing and discussing to a large number of research materials both at home and abroad, adopts some methods improve and optimize to calculating on setting right the distance to put in order in reconstructing the existing railway lines and the distance of space in expanding the second-line, in order to achieve the goal of calculating the data accurately.As to calculating on setting right the distance to put in order in reconstructing the existing railway lines, this text adopts the differential method to improve and optimize further on the basis of the method set right the distance before pursueing to approach, exactness and accuracy of this method that corresponding procedure has proved through writing, serious analysis and discuss the issue such as influence of curve radius intercepted into integer and optimization of relaxative...