| In this thesis, the problems, involving in the design and practice of seepage on foundation excavation, are studied systematically. Based on the theory and method of optimation, the well group in the dewatering foundation pit is designed by establishing the object function with the total water quantity of well group. According to the seepage equation of the groundwater and using the finite element method, this thesis establishes the mathematics model for two and three dimensional seepage. In addition, based on the Biot theory of consolidation and considered the influence of seepage on deep foundation pit excavation, the mathematics model is established, which is applied to the coupling of seepage and stress and considers the free surface of seepage. It is understood that the influence on the stability of foundation pit by groundwater seepage formed during deep foundation pit excavation. The programs of mathematics model mentioned are written by Fortran 77 language. It is shown that mathematics models are reasonable and programs are correct through practical examples. |
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