相关距离分析与勘察钻孔取样间距的合理确定

An analyzing of the impact of correlation distance on sampling interval

摘要: 在场地岩土工程勘察中,为使所取土样之间满足数据独立性的要求,本文提出应使钻孔取样间距等于土的相关距离,这样能真实、准确地反映地基土的特性。根据Vanmarcke提出的随机场模型,结合数理统计和随机过程理论,采用递推平均法计算得到土的相关距离,其计算数据来自现场静力触探试验。

Abstract: In order to meet demand of independence of data in site investigation,this paper sets forth that sampling interval in a drill hole should equal to correlation distance of soil,which can reflect the features of soil accurately and truly.The correlation distance can be calculated in accordance with soil stochastic field model suggested by Vanmarcke and methods of mathematical statistics and stochastic process.Data concerning the correlation distance can be obtained easily from CPT. 更多还原