BXibao Highway Subgrade Treatment Technology Reconstruction Of Old And New Band

With the rapid economic development, the expressway development rapidly, in ourcountry with "of combining popularization with the raising of, in order to improve the Lord"policy of highway construction, under the guidance of will face more and more highwayexpansion problem. Therefore, from the standpoint of long-term and economy, highwayreconstruction projects in China will be facing highway construction of the century is veryimportant and the problems which must be solved. But, old and new band subgrade treatmenttechnology has been uneven settlement of highway is a difficult problem in wideningengineering. In this paper, the highway subgrade in reconstruction projects of farming landsthey might do the old and new technologies, combined with the xian to baoji highwaysubgrade in reconstruction projects of old and new band in design and construction, study thenew and old roadbed uneven settlement regularity, and puts forward the treatment measures.The main research contents include the following aspects:(1) for the XiBao highway reconstruction projects old road status of detailedinvestigations.(2) selecting representative cross-section, through the laboratory and field tests, to XiBaohighway roadbed and expansion of the physical and mechanical properties of old.(3) on the highway roadbed of old and new band the uneven settlement treatmenttechnologies.(4) to XiBao highway reconstruction projects characteristics of the old and new XiBaohighway subgrade fringe of design and construction techniques are studied.