增量加载有限元法在地基承载力分析中的应用

摘要

Based on the incremental loading finite element method, Studied the horizontal bearing capacity of foundation, and slope foundation characteristic and load plate. Based on numerical load test analysis, The results shows that the load test proposed load board size is the right in the specification. The bearing capacity is relatively sensitive for the slope of foundation. The research results provide a reference for slope foundation bearing capacity determination.%基于增量加载有限元方法，通过数值载荷试验分析，研究了水平地基和斜坡地基承载力特性及载荷板尺寸效应对地基承载力的影响，研究结果表明规范中针对载荷试验拟定的载荷板尺寸是合适的，对于斜坡地基，坡边距、坡度变化对承载力较为敏感，分析表明：当坡边距大于基础宽度的3.5倍时，地基承载力损失较小；当坡边距一定时，斜坡坡度小于35°时承载力损失较小，坡度大于45°时承载力损失较大。研究成果为斜坡地基承载力确定提供参考。