块石在水流作用下的稳定性研究

Study on stability of stone under current action

采用目前常用的经验公式计算和物理模型试验的方法,对印尼某燃煤电站工程防冲块石的稳定性进行研究,提出了试验时块石在水流作用下抗冲稳定的判定标准;各公式中,航道整治工程技术规范和伊兹巴什公式计算结果较为接近,可在试验前和相关设计中采用;对2种研究方法所得结果进行的简单对比表明,2种方法仍存在较大差异,建议在进行类似项目研究时采用物理模型试验研究的方法对设计进行论证和检验。

The stability of apron stone in some coal-fired electricity station project in Indonesia was studied by using experimental formula and physical model test. In this paper, the determination criterion for the stability of apron stone under the current action was put forward so as to provide basis for the reasonable test result.The calculating results of formulas in Technical Code of Regulation Works for Navigation Channel and S.V.Isbash formula were approximately the same, so they can be adopted in the correlated design and the test.The simple contrast shows that there are still significant differences between the two methods.The physical model test method is recommended in similar research.