修正的威布尔模型在沉降预测中的应用研究

Study on application of modified Weibull model to settlement prediction of foundation

地基沉降预测一直是岩土工程中的一个热门问题。针对传统的指数曲线预测模型存在的不足,对其进行了分析与改进,提出了更具有一般性的威布尔曲线模型,并通过工程实例验证了该模型的合理性与准确性。发现所提出的模型对路基沉降的预测结果精度高,具有一定的参考和使用价值,最后指出了需进一步研究的问题。

The settlement prediction of foundations is always a frontal problem in geotechnical engineering. Aimed at the shortcomings of traditional exponential model, some analyses and improvements are done, and then, the modified Weibull curve model with more universality for settlement prediction is put forward. Furthermore, the rationality of this model is attested with several engineering examples. It can be easily found that this model can cause more accurately predicting results of foundation settlements. In a way, it has some reference and application value in practice. At last, the further studying problem is pointed out.