摘要
单桩的沉降计算是依据地基土在外荷载作用下的应力 -应变关系来建立计算模型的 ,但目前所建立的这些模型的计算结果 ,大多都与工程实际有较大的误差 .根据地基土的变形特征和桩 -土协同工作的原理 ,采用地基土的粘弹塑性模型和桩身混凝土的弹性变形模型 ,提出了单桩的沉降计算的基本理论 .经与工程实例对比分析 ,具有较好的一致性 .
The settlement of single pile is calculated according to stresses-strain of base soil in outside carry function set up calculate model,but calculation result for establishing these models compared with engineer practical contains bigger error margin.According to the transformation of foundation soil characteristic and the principle of pile-soil conjunction work,this paper adopts the model of cohesive-elastic-plastic of foundation soil and the model of elasticity deformed for concrete pile,and brings up the basic theories of settlement calculatingly of single pile.Through analyzing and contrasting with example of engineering,the results have good consistency.
