Research On Fast Construction And Numerical Simulation Of Settlement For High Embankment

Comparing to the common embankments, the high embankment has big settlements, long-time settlements and need high foundation carrying capacity, but it is not alluded expressly in the actual norm of our country. The roadbed settlements in highway construction, especially unsymmetrical settlements, will lead to the cleft and stagger of pavement, and largely affect the quality of driving as well as used life-span. So how to bring down the settlements and clear off the danger made by settlements has been an important task in highway construction.This article integrates the actual 118 Project to research. In the project, the north bank of DaoShuiHe Bridge will be the high embankment, on which the main girders of the great bridge will be prefabricated. For the more, the construction of the high embankment must be accomplished in forty days and it must satisfy the construction, piling, transport and assembly of the prefabricated components. Aim for these special conditions, this article carried out the research on fast construction from the three aspects such as processing natural foundation,filling embankment and remedial measures, and expounded the scheme of fast construction. The radical starting point of this scheme is how to bring down the settlements and clear off the unsymmetrical settlements, so as to raise the foundation carrying capacity. In order to verify the rationality of this scheme, this article introduces the methods of calculating settlements. Because of the complicated nonlinear feature of soil, the finite element method is selected to numerically analyze from many methods of calculating settlements. Basing on the ANSYS platform, the numerical simulation of embankment settlements is conducted. The results manifest that the effects of some measures in the fast construction scheme is obvious, so the rationality and practicality of scheme are verified amply. It is an inevitable tendency that researching the project comprehensively and scientifically by means of computer technology accordingly bringing forward economic and reasonable construction scheme. The researchful outcomes of this article will have popularized value in analogous zones and projects, and it will help the people who make project policy or the technicians to accomplish all kinds of simulant analysis, calculation, design and administration which manpower can not do with high efficiency and accuracy, thus it will have extensively applied prospect.