摘要
已有研究表明,砂土地基的震动液化具备突变特性。阐述了如何在砂土液化功效当量标贯法的基础上,采用突变理论模型对两例历史场地地基加固后的液化进行的计算分析,结果表明:突变理论的计算结果与实际情况吻合。所介绍的方法考虑了桩体排水作用和荷载分担作用,并定量表示了地基加固后的液化能力,因而具有一定的实用性。
Researches have shown that vibrating liquefaction of sand foundation is characterized with catastrophe . Based on sand liquefaction efficiency equivalent standard penetration method, liquefaction of foundations in two cases after consolidation are analyzed by the catastrophe theory model. The results indicate that the calculations are in agreement with measured values . The new method takes account of drainage and repartition and reveals quantitatively the capability of liquefaction after foundation consolidation . Therefore , it concludes that the method is efficient and feasible.
出处
《四川水力发电》
2005年第1期60-62,74,共4页
Sichuan Hydropower
基金
国家自然科学基金项目(编号:10172027)
关键词
突变理论
液化
复合地基
功效当量标贯法
catastrophe theory
liquefaction
composite foundation
efficiency equivalent standard penetration method
