Experimental study on resistivity response of fly ash slurry in fractured rock mass based on test frequency

LI Chuang; LIU Hui; LI Pei; PAN Aifang; HU Xin; ZHENG Xinchao

doi:10.20265/j.cnki.issn.1007-2993.2025-0206

Volume 40 Issue 4

Aug. 2026

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LI Chuang, LIU Hui, LI Pei, PAN Aifang, HU Xin, ZHENG Xinchao. Experimental study on resistivity response of fly ash slurry in fractured rock mass based on test frequency[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2026, 40(4): 590-597. doi: 10.20265/j.cnki.issn.1007-2993.2025-0206

Citation:

LI Chuang, LIU Hui, LI Pei, PAN Aifang, HU Xin, ZHENG Xinchao. Experimental study on resistivity response of fly ash slurry in fractured rock mass based on test frequency[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2026, 40(4): 590-597. doi: 10.20265/j.cnki.issn.1007-2993.2025-0206

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Experimental study on resistivity response of fly ash slurry in fractured rock mass based on test frequency

doi: 10.20265/j.cnki.issn.1007-2993.2025-0206

LI Chuang^1
,,
LIU Hui^{2
,
,},
LI Pei³,
PAN Aifang^{1, 4},
HU Xin²,
ZHENG Xinchao²

1.
Shaanxi Huaneng New Energy Co., Ltd., Xi’an 710075, Shaanxi, China
2.
School of Geology and Environment, Xi’an University of Science and Technology, Xi’an 710054, Shaanxi, China
3.
School of Civil Engineering, Chang’an University, Xi’an 710054, Shaanxi, China
4.
Cross-innovation Research Institute, Xi’an University of Architecture and Technology, Xi’an 710055, Shaanxi, China

Received Date: 2025-05-06
Accepted Date: 2025-11-11
Rev Recd Date: 2025-09-10
Publish Date: 2026-08-08

Abstract

Abstract

The resistivity of fractured rock is a key parameter in geophysical exploration, and its frequency-dependent characteristics play a crucial role in determining the accuracy of data interpretation. In this study, resistivity tests were conducted on fractured rock specimens with varying fracture inclinations and fly ash contents under different frequencies (100 Hz, 10 kHz, 100 kHz, and 200 kHz). The objective was to investigate the response of rock resistivity to frequency variations. The experimental results show that resistivity is generally negatively correlated with frequency. In the high-frequency range (10～200 kHz), resistivity changes are more stable compared with those in the low-frequency range (100～10000 Hz). Moreover, the rate of resistivity reduction decreases progressively with increasing frequency until it approaches a stable value. Curve fitting further demonstrates that, under different experimental conditions, the resistivity of fractured rock exhibits a strong exponential relationship with frequency, with a good fitting performance. The research can provide effective theoretical data for dynamic monitoring and safety assessment of rock mass grouting engineering.
- fractured rock mass,
- fly ash,
- resistivity,
- test frequency,
- conductive characteristic

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References(30)

References

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Experimental study on resistivity response of fly ash slurry in fractured rock mass based on test frequency

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Experimental study on resistivity response of fly ash slurry in fractured rock mass based on test frequency

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