土工基础

›› 2015, Vol. 29 ›› Issue (2): 113-116.

• 工程实录 • 上一篇    下一篇

山东黄河冲积平原区地基土的压缩模量与标准贯入试验击数相关性研究

高 鹏1,吕颖慧2   

  1. （1.山东电力工程咨询院有限公司， 济南 250100；2.济南大学土木建筑学院，济南 250001）
  • 收稿日期:2014-08-27 出版日期:2015-04-20 发布日期:2015-05-04
  • 作者简介:高 鹏(1980-),男，硕士，工程师,研究方向为岩土工程勘察。

Correlations Between the SPT N Value and Compression Modulus for Alluvial Soils in Yellow River Delta, Shandong Province

GAO Peng1,LV Yinghui2   

  1. (1.Shandong Electric Power Engineering Consulting Institute Co., Ltd , Jinan 250100
    2.School of Civil Engineering and Architecture, Jinan University, Jinan 250001)
  • Received:2014-08-27 Online:2015-04-20 Published:2015-05-04

摘要： 标准贯入试验是岩土工程勘察中常用的原位试验方法，已有的研究结果显示标准贯入试验锤击数N与土的压缩模量ES存在相关性。黄河冲积平原区的土层由于相同的沉积环境形成了其工程性质的的相似性。对山东省黄河冲积平原地区大量岩土工程勘察资料进行了数据分类汇总，并在此基础上研究该地区N与ES存在的相关性。通过回归分析和线性拟合方法，得出了粉质粘土和粉砂的N-ES相关关系。研究结果表明：粘性土和砂土的压缩模量和标贯击数相关性较好，由于扰动等因素粉土的相关性较差；标准贯入试验击数的修正与否对相关性影响不大，建议不进行修正。

关键词: 标准贯入试验, 黄河冲积平原, 压缩模量, 相关性

Abstract: The Standard Penetration Test (SPT) is a conventional insitu geotechnical investigation method and the general relationship between the SPT N value and the compression modulus Es is available. The alluvial soils from the Yellow River Delta have the similar engineering properties due to their sedimentary environment. It is necessary to examine the relationship between the SPT N value and the compression modulus based on the regression analysis on the clayey, sandy and silty soils from the Yellow River Delta in Shandong Province. The results indicate that, better relationships exist in the clayey and sandy soils. But for the silty soils, due to disturbance on the samples, good relationship could not be obtained. Therefore, it is suggested that the existing general correlations between the SPT N values and the compression modulus for silty soils should be used without correction.

Key words: Standard Penetration Test, Alluvial Delta of Yellow River; , Compression Modulus, Correlations