论文部分内容阅读
黄土工程特性的研究,是目前土壤力学一个重要部門。有关黄土区的地基与土工工作、我們經常根据“天然地基設計暫行規范”上条文来設計,但对於基土沉陷量的估計,往往不易准确,而造成工程上的困难与事故。这是現时没有得到解决的問題。本文闡述黄土的若干特性,旧規范条文上的缺点,苏联1955年批准的“建筑法規”内改善黄土部分条文的意义,以及目前国内研究与發展的方向。其中主要說明黄土由於荷載及含水量兩項的綜合影响对其沉陷性能上所發生的变化,以及估計这項变化较合理的方法,以期在研究工作上作进一步的認識。
The study of loess engineering characteristics is an important department of soil mechanics. Regarding the foundation and geotechnical work in the loess area, we often design according to the provisions in the “Provisional Rules for Design of Natural Foundations”. However, estimates of the amount of subsidence in the subsoil are often not easy to be accurate, causing difficulties and accidents in engineering. This is a problem that has not been solved at present. This article describes several characteristics of loess, the shortcomings of the old regulations, the significance of improving some provisions of loess in the “building regulations” approved by the Soviet Union in 1955, and the current direction of domestic research and development. It mainly explains the changes in the subsidence performance of the loess due to the combined effects of load and moisture content, and the methods for estimating this change are reasonable, with a view to further understanding of the research work.