| As the development of highway's construction , especially high-grade roadway's building in our country, there must happen many high-filled embankments where many projects will be constructed , such as highway's project, railway's project, large-scale or medium-sized port and dock's projects, airport project, as well as those projects of filled lake, filled bay and so on. Therefore high-filled project is one of the most important basic constructions. high-filled project problem is also one of the classical problems in geotechnical engineering. So far , although lots of methods and the program used to solve this problem have been set up, there are still many basic theoretic and technological questions to be studied and probed into about those methods and techniques. Large numbers of large-scaled complicated and high-quality high-filled embankments will inevitably be encountered as our society goes forward. The single method and technique has not reached practical requirements , in order to solve those problems , several theories and methods should be carried out , that is to say , integrated measurements are good and valid to analyze and study the high-filled embankments's stability and deformation . Combining with the scientific research task "Study on the Stability and Deformation of High-Filled Embankment and Deep Excavated Cuts of the Traffic Department in Fu Jian Province", based on the high-filled embankment project on the project site at K16+320 of Yong-Zhang highway, the stability and deformation of high-filled embankment have been studied systemically and synthetically in the thesis. Main research work and concerning achievements are summarized as follows:â’ˆCollect , analyze and summarize present datum about the stability and deformation of high-filled embankments at home and abroad ï¼›Expatiate upon the research methods and techniques about high-filled embankments' project, sum up and classify the filled embankments , analyze the common problems and bring forward some measurements for them. According to the geological condition and the datum from test, in addition to the structural type and the shape of the highway's embankment , the physical and mechanical model , the research theory and concerning methods and techniques are brought forward. â’‰Study on the stability of the project has been carried out by the means of the limit equilibrium method, at the same time, merits and defects of those methods used in the thesis are analyzed ; after the allowable factor of safety about the embankment' slope is defined , the practical factor is calculated and conclusions about the embankment's stability are also made . On the basis of aforementioned analysis , several new schemes are put forward to .Deformation of the high-filled embankment has been performed by the using numerical methods, such as nonlinear elastic FEM program and elastic-plastic FEM software ADINA. Rules of stress and displacement about the deformation of high-filled embankment are discussed. On the basis of discussion of the limit equilibrium methods , comparing with the two numerical methods ,stress and displacement are worked out for the best new scheme.â’ŠThe factor of safety about the high-filled embankment received heaviest load is 2.2, the best new scheme is 1.609. So it is concluded that the old design is conservative and the new is economical. Through the analysis of numerical method, lateral displacement is larger on the toe of the high-filled embankment than that of any other places, lateral bouffant failure is possible to appear on some little local region, so more attention should be given to them when reinforcement is performed on the surface of the high-filled embankment in order to maintain it safe.â’‹All-around results show that the new scheme is better than the old one, the safety factor is reduced to 21.7 percent, however if the first stage of the high-filled embankment is soaked in flood, the safety factor will be reduced to 50.4 percent. That is to say that the condition of draining is primary. Un...
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