考虑半透水边界的砂井地基粘弹性固结研究

本文研究了实际工程中由于砂垫层排水不良而具有半透水边界的砂井地基粘弹性固结问题 ,给出了相应的解析解 ,并根据该解 ,通过编程计算 ,探讨了半透水边界及土的粘弹性参数对固结过程的影响。研究表明 ,砂垫层透水性对砂井地基固结过程有较大影响 ,且与井阻等参数有关。当表征砂垫层透水性能的综合参数 R大到一定程度时 ,可将砂垫层视为完全透水边界处理

Study on Paste Elastic Consolidation of Sand Well Foundation of Considering Semi-Permeable Boundary

The paper studies on the problem of paste elastic consolidation of sans well foundation with semi-permeable boundary due to bad drainage of sand course in the actual project. It also gives the corresponding analytic solution, and according to this solution through the calculation of programming it approaches to the influence of the semi-permeable boundary and soil paste elastic parameter on the consolidation process. The study shows that the permeability of the sand course has greater influence on the consolidation process of the sand well foundation and it relates to the parameters such as well resistance etc. When the comprehensive parameter R of the permeable performance of the sand course is so great to a certain degree, it could regard the sand course as complete permeable boundary to treat.