Project Cost Control Of Rural Highway In Design Phase

The construction level of rural highway is low, construction period is focused, and the financial resources is limited, national and local annual capital investment in highway construction is limited, in order to ensure the quality of the construction of rural roads, to extend its service period, the limited capital investment must be fully, rational and scientific used of, to exert its economies of scale. In order to use the final resources scientific and rational, the project cost must be effectively controlled.This thesis described China's current technical standards for rural highway: The suggestion of county and rural highway upgrade projects, the implementation of the views of the Ministry of Communications on the rural road construction standards for guidance. A comparative analysis of technical standards of existing rural highway was done for the typical provinces and cities in China's eastern region, western region and the central region, including the technical standards from Jilin, Gansu, Qinghai, Shanxi, Shandong and Hebei Province.This thesis describes basic types of pavement for rural highway in China: paved roads, easy road and gravel road; proposed several factors to determine the type of pavement structure; analysis of the significance, advantages, principles and methods of research for typical pavement structure in China. According to traffic and soil-based class division in Xi'an, using of pavement structure optimization design method, drawing on pavement structure design principles in domestic provinces, combined with design and practical experience of existing asphalt and concrete pavement in Xi'an, analyzed the composition and thickness of pavement structure, proposed typical pavement structure of the rural highway in Xi'an.Highway project cost management system was built from the system theory point of view using the barrel theory. All aspects, activities and elements of highway project cost management system are interdependent and constrained that must be closely linked, and not allowed to appear gaps and cracks. Project cost management system of highway can not be a "leaky bucket."This thesis discussed the importance of cost control in design phase of the rural roads. The construction cost control in design phase is the top priority of the whole process of investment control, it will affect the entire construction investment results. Combined with work practice in rural highway design phase, some cost control methods are discussed. How to optimize the design in order to reduce or control the project cost was described, several measures to control costs in the design phase of rural highway construction were proposed.