Geostatistical Analysis for Identifying Weak Soil Layers in Dikes

Research output: Contribution to journalArticle

Abstract

The spatial distribution of the strength inside river dikes is generally identified through sounding tests. In this research, the electric cone penetration test (CPT) is employed, and spatially long- A nd short-interval tests are mixed to efficiently evaluate the piping risk to a dike. The indicator simulation (IS) method is used as the geostatistical method to simulate the N value distribution and to predict the weak area inside the dike. The synthesized approach of the CPT and the surface wave method (SWM), which is one of the geophysical methods, is proposed to compensate for the shortcoming of each approach when conducting the IS. Consequently, the correlation structure inside the dike can be identified accurately, the high resolution of the spatial distribution of the N values can be visualized, and the piping risk to the dike can be discussed based on the results of the investigation.

Original languageEnglish
Pages (from-to)529-538
Number of pages10
JournalGeotechnical Special Publication
Issue numberGSP 285
DOIs
Publication statusPublished - 2017

Fingerprint

Levees
dike
Soils
cone penetration test
piping
Spatial distribution
Cones
spatial distribution
geophysical method
Surface waves
surface wave
simulation
Rivers
analysis
soil layer
river
method

ASJC Scopus subject areas

  • Architecture
  • Civil and Structural Engineering
  • Building and Construction
  • Geotechnical Engineering and Engineering Geology

Cite this

Geostatistical Analysis for Identifying Weak Soil Layers in Dikes. / Nishimura, Shin-ichi; Shibata, Toshifumi; Shuku, Takayuki; Imaide, K.

In: Geotechnical Special Publication, No. GSP 285, 2017, p. 529-538.

Research output: Contribution to journalArticle

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