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Research On The Reflection Crack's Control Measures Of Composite Road

Posted on:2009-04-26Degree:MasterType:Thesis
Country:ChinaCandidate:X H MaFull Text:PDF
GTID:2132360272472178Subject:Hydraulic engineering
Abstract/Summary:PDF Full Text Request
Asphalt surface has been used to improve the work of layer of cement concrete pavement in the 1930s abroad, however, until the early 70s serious compound fractures reflection of the road was paid attention to. In the last 30 years, the road-reflective crack problem has been researched deeply.Compared to other countries, research in this area in our country is still in its infancy. In our country old cement concrete pavement repair techniques began in the late 1980s and early 1990s, with a focus on data collection methods, investigation and determination to carry out the provisions of reunification on the basis of which all sections of the proposed conservation To strengthen and reconstruction.Based on the survey of composite roads in Henan Province, the cause of the disease is analyzed, and on-street reflector compound fracture treatment technology was studied. First of all, in this paper, using three-dimensional finite element method, composite reflection surface cracks are analyzed, and .the impact of the composite road asphalt's physical and structural parameters are analyzed, besides, the effect of different ways to prevent crack is studied. Based on mechanics to the calculation, the composite structure of the road design is studied.Secondly, this paper carried out the indoor simulation to study the stress absorption layer fiber asphalt concrete, asphalt concrete measures such as particle size control of reflection cracks in the effectiveness and technical parameters.Finally, relying on the pilot project, the actual results of a variety of programs are observed, and then construction technology research is carried out to improve the situation.
Keywords/Search Tags:composite road, reflection crack, three-dimensional finite element method, indoor simulation
PDF Full Text Request
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