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现有地基沉降预测模型多数是数学统计模型,参数意义不够明确,而Asaoka方程具有明确的理论基础,在工程中得到了广泛应用。针对实际工程中出现的非等间隔沉降观测数据,通过将微分方程用差分形式表示,建立了可以用于非等间隔数据处理的Asaoka法,同时给出了基于该法的沉降预测表达式。通过工程实例,将新方法与Asaoka图解法进行分析比较,给出了Asaoka法的应用建议。实例应用结果表明,新方法可以较好地预测地基沉降。
Most of the existing subsidence prediction models are mathematical statistical models, the meaning of parameters is not clear enough, while the Asaoka equation has a clear theoretical basis, which has been widely used in engineering. According to the non-equidistant settlement observation data in practical engineering, the Asaoka method which can be used for non-equidistant data processing is established by using the differential equation. The settlement prediction expression based on this method is also given. Through the engineering example, the new method is compared with the Asaoka method, and the application of Asaoka method is given. The practical application shows that the new method can predict the foundation settlement better.