蒋鹏, 李荣强, 孔德坊. 2002: 强夯接触力和接触位移的碰撞分析求解. 工程地质学报, 10(1): 108-112.
    引用本文: 蒋鹏, 李荣强, 孔德坊. 2002: 强夯接触力和接触位移的碰撞分析求解. 工程地质学报, 10(1): 108-112.
    JIANG Peng, LI Rongqiang, KONG Defang. 2002: ACULATION OF CONTACT FORCE AND CONTACT DISPLACEMENT DURING DYNAMIC COMPACTION BY COLLISION ANALYSES. JOURNAL OF ENGINEERING GEOLOGY, 10(1): 108-112.
    Citation: JIANG Peng, LI Rongqiang, KONG Defang. 2002: ACULATION OF CONTACT FORCE AND CONTACT DISPLACEMENT DURING DYNAMIC COMPACTION BY COLLISION ANALYSES. JOURNAL OF ENGINEERING GEOLOGY, 10(1): 108-112.

    强夯接触力和接触位移的碰撞分析求解

    ACULATION OF CONTACT FORCE AND CONTACT DISPLACEMENT DURING DYNAMIC COMPACTION BY COLLISION ANALYSES

    • 摘要: 首次采用大变形动力接触有限元法分析了强夯对地基土的冲击碰撞过程 ,锤底接触力和夯沉量过程中直接求得 ,且能模拟夯锤与地基土的多次接触分离过程 ,适应于各种复杂的地基土条件和夯击能条件 ,克服了现有其它方法的不足和缺陷。文章最后给出了系列工程算例 ,验证了本文计算模型的合理型

       

      Abstract: By set up of an equation of dynamic contact between hammer and foundation soil, in this paper a finite element model for dynamic compactionks impact and collision is constructed. Contact force and contact displacement of hammer is found in the calculation. By using UL method, a large deformation dynamic equilibrant equation of the finite element system of dynamic compaction is formulated in this paper. A geometric nonlinear influence taken into consideration in analysis. Erosion element is adopted in the program for decreasing the grid instability. The program considers the influence of the weight of hammer and can simulate the departing phenomenon between hammer and soil. At the end of this paper, some engineering examples are discussed to test and verify this program.

       

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