Exploration on electrical resistance tomography in characterizing the slurry spatial distribution in cemented granular materials

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外文摘要：This study investigated the application of electrical resistance tomography(ERT)in characterizing the slurry spatial distribution in cemented granular materials(CGMs).For CGM formed by self-flow grouting,the voids in the accumulation are only partially filled and the bond strength is often limited,which results in difficulty in obtaining in situ samples for quality evaluation.Therefore,it is usually infeasible to evaluate the grouting effect or monitor the slurry spatial distribution by a mechanical method.In this research,the process of grouting cement paste into high alumina ceramic beads(HACB)accumulation is reliably monitored with ERT.It shows that ERT results can be used to calculate the cement paste volume in the HACB accumulation,based on calibrating the saturation exponent n in Archie's law.The results support the feasibility of ERT as an imaging tool in CGM characterization and may provide guidance for engineering applications in the future.

外文关键词：

electrical resistance tomographycemented granular materialgroutingspatial distributionArchie's law

作者：

Bohao WANG、Wei WANG、Feng JIN、Handong TAN、Ning LIU、Duruo HUANG

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作者单位：

State Key Laboratory of Hydroscience and Engineering,Tsinghua University,Beijing 100084,China

Institute of Science and Technology,China Three Gorges Corporation,Beijing 100038,China

School of Geophysics and Information Technology,China University of Geosciences,Beijing 100083,China

基金：

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaScientific Research Project of State Key Laboratory of Hydroscience and Engineering

项目编号：

52039005518611651022022-KY-01

出版年：

2024

DOI：

10.1007/s11709-024-1049-3

结构与土木工程前沿

高等教育出版社

结构与土木工程前沿

CSTPCDEI

影响因子：0.082

ISSN：2095-2430

年,卷(期)：2024.(3)