Identification of soil layer boundaries using mechanical layered method base on piezocone penetration test data

被引：0

作者：

Lin J. ^{[1
,2
]}

Cai G.-J. ^{[1
,2
]}

Liu S.-Y. ^{[1
,2
]}

Zou H.-F. ^{[1
,2
]}

机构：

[1] Institute of Geotechnical Engineering, Southeast University, Nanjing, 210096, Jiangsu

[2] Jiangsu Key Laboratory of Urban Underground Engineering & Environmental Safety, Southeast University, Nanjing, 210096, Jiangsu

来源：

| 2017年 / Academia Sinica卷 / 38期

基金：

中国国家自然科学基金;

关键词：

Mechanical layered method; Piezocone penetration test; Soil boundary identification; Statistical analysis;

D O I：

10.16285/j.rsm.2017.05.024

中图分类号：

学科分类号：

摘要：

To identify boundaries of homogeneous soil layers is critical to geotechnical design. The piezocone penetration test (CPTU) data are often used for soil classification, boundaries identification, property evaluation, etc. Statistical methods for soil boundary identification are developed to detect the boundaries of the homogeneous soil layers based on CPTU data. To generate intra-class correlation coefficient index, i.e. RI statistics and Bartlett statistics, it is necessary to perform statistical analysis on CPTU data with intra-class correlation method and modified Bartlett statistic test respectively. The boundaries of homogeneous soil are identified by mechanical layered method using critical RI statistic and critical modified Bartlett test statistic for homogeneity test of soil layers. The CPTU data in three construction sites are assessed to identify boundaries of homogeneous soil layers with the proposed methods. The results compared with the results of the soil classification layered method show that the mechanical layered method can discriminate all primary boundaries decided by the soil classification layered method, and reveal potential secondary soil boundaries. © 2017, Science Press. All right reserved.

引用

页码：1413 / 1423

页数：10

共 31 条

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