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本项工程由国外引进,我国自行施工。这是一个长686m的复杂的大型箱体筏基,在变形计算上没有成熟的经验。在建设过程中,国内有关单位对基础进行了理论计算和实测研究,基本上搞清了基础的变形规律。工程投产几年来的实测结果证明,所作理论计算与工程实际是吻合的。本文将就其主要计算理论假定作一简要论述。如考虑地基与基础的共同作用,对计算沉降作刚度修正;截块近似计算法的假定和计算原则;文克尔弹性地基模型的应用和基础全长整体计算分析等。
This project is introduced from abroad and China is constructing itself. This is a complex large-scale tank foundation with a length of 686m. There is no mature experience in deformation calculation. In the process of construction, the relevant units in China have conducted theoretical calculations and actual measurement studies on the basics, basically clarifying the basic deformation laws. The actual measurement results of the project put into operation in the past few years have proved that the theoretical calculations are in line with the actual project. This article will briefly discuss its main calculation theory assumptions. For example, consider the joint action of foundation and foundation, make stiffness correction for calculated settlement, the assumptions and calculation principles of cutting block approximation calculation method, the application of the Winckel elastic foundation model, and the overall length of the overall calculation and analysis.