论文部分内容阅读
针对在地基加固方面,确定土工格室加固地基的承载力时,仍然套用土工格栅等平面筋材加筋层的计算公式,仅对其中的某些参数进行修正,计算出的地基承载力误差较大。鉴于上述原因,基于温克尔(E W inkler)弹性地基梁理论,推导了土工格室柔性筏基的地基承载力计算公式,确定相关计算参数,并用模型试验结果验证了公式的准确性。结果表明:本文推导的计算公式准确率较高;但该公式是基于已知沉降的情况下计算得到,对于P-S曲线有明显拐点的,存在一定的误差,影响计算承载力准确性的因素有很多,包括温克尔地基的假定前提,参数的取值等。
In the aspect of foundation reinforcement, when determining the bearing capacity of geocell reinforced foundation, the formula of reinforced layer of geogrids such as geogrids is still applied, only some of the parameters are modified, and the calculated foundation bearing capacity error Larger. In view of the above reasons, based on the Winkler elastic foundation beam theory, the calculation formula of the foundation bearing capacity of the geotextile flexible raft foundation is deduced and the relevant calculation parameters are determined. The model test results verify the accuracy of the formula. The results show that the accuracy of the calculation formula derived in this paper is high, but the formula is based on the known settlement. There are some errors for the PS curve, and there are many factors that affect the accuracy of calculating the bearing capacity , Including the presupposition of Winkel foundation, the value of parameters and so on.