Treatment Measures For Settlement And Quality Control Standards Of Expreeway In Mountainous

In highway construction in mountainous areas, the main form of high embankment fill subgrade and dig deep cutting, and more bridge structures, therefore, Treatment and differential settlement of subgrade under high embankment construction quality control is a mountain highway embankment construction an important part of the process. For the high-treatment measures Subgrade fill the selection method based on experience base in the past, the lack of theoretical basis. Currently used for high fill subgrade compaction quality control methods are more various control method has its limitations, control standards are not unified, construction quality control process of nowhere.In response to these problems, this paper built in Baoding in Hebei Province, Baoding-Fuping Expressway Project, based on the classification of differential settlement Treatment Mountain Highway construction quality control measures and technology research. By differential settlement of domestic and international control measures in highway survey and analysis, subgrade settlement obtained the way to prevent all kinds of application and use of results, and Paul Fu Freeway embankment height, the number of structures, Engineering Geology Division, etc. detailed analysis of the content of proposed insurance settlement Fu Freeway between the main control section of roadbed:at the high embankment, fabric place, excavation and filling junction. The finite element method combined with the growth curve model approach embankment settlement prediction model established, to the construction of the embankment settlement calculation is based on the typical cross-section test section were estimated Settlement after. Depending on the nature of soil, ground compression thickness, embankment height, differential settlement of subgrade grading the subgrade, for different levels of differential settlement to take appropriate treatment measures, the difference will be the final settlement of control target range. Characteristics for high fill embankment, systematic and comprehensive analysis of the current roadbed construction process because of quality problems, combined with field test, the influence of subgrade compaction of construction quality, density, porosity, sedimentation rate and other factors, in-depth studies to determine the high fill roadbed and fill subgrade construction quality control standards, for mountain highway embankment construction quality control of reference.