Standardization of bill of quantities for road superstructure on the concept of parametrization

摘要

In our master’s degree thesis we have dealt with and focused on the establishment of the standardization proposition for the bill of quantities for the road superstructure according to the parametrization principle.udAccording to this method, the bill of quantities is comprised of individual parameter values. Each value defines separately the technology of the building, dimensions, material quality, transport and other characteristics, which are necessary for the formation of the quantity items. udThe standardization of bill of quantities is a constant process, as it must include all the modern characteristics and standards in the sense of correct technology definition, materials and the quality of the final product accordingly. Due to the ongoing development in different engineering industries, and the high numbers in the characteristic permutations, there still prevails the everlasting dilemma: what and how to include the most important characteristics of the final product into the bill of quantities in order for them to be still (and at the same time) accurate, flexible and manageable enough to enable the connection between the productive and manufacturing (bill of quantities and calculation) project model (plans, resources dynamics).udFor the purpose of the formation of the bill of quantities items to construct the road superstructure Slovenian technical literature and similar standardizations used abroad have been studied and checked. The main focus is on the implementation of the characteristics and technologies in the construction of subbase, asphalt concrete-stabilized base course, upper asphalt concrete-binder course and asphalt concrete surface and base course. We have organized the gathered data in tables of standard parameters and inserted them into the program Xpert module Xbase. We have compared the usability of the Xbase for the bill of quantities with the current method and analyzed the advantages and disadvantages.