基于测试频率的裂隙岩体粉煤灰浆液电阻率响应试验研究

李闯; 刘辉; 李培; 潘爱芳; 胡鑫; 郑鑫超

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

基于测试频率的裂隙岩体粉煤灰浆液电阻率响应试验研究

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

李闯^1,,
刘辉^2, ,,
李培³,
潘爱芳^{1, 4},
胡鑫²,
郑鑫超²

1.
陕西环能新能源有限公司，陕西西安　710075
2.
西安科技大学地质与环境学院，陕西西安　710054
3.
长安大学建筑工程学院，陕西西安　710054
4.
西安建筑科技大学交叉创新研究院，陕西西安　710055

基金项目: 陕西省重点研发计划（2023-YBSF-445）

详细信息

作者简介:
李　闯，男，1983年生，硕士，工程师，主要从事岩土工程勘察研究。E-mail：lccmec@126.com

通讯作者:
刘　辉，男，1999年生，硕士，主要从事工程地质灾害治理研究。E-mail：liuhui9221@163.com

中图分类号: TU45
计量
- 文章访问数: 23
- HTML全文浏览量: 10
- PDF下载量: 1
- 被引次数: 0
出版历程
- 收稿日期: 2025-05-06
- 修回日期: 2025-09-10
- 录用日期: 2025-11-11
- 刊出日期: 2026-08-08

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

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

摘要

摘要: 裂隙岩体的电阻率特性作为地球物理探测中的核心参数，其随测试频率的变化特征显著影响着探测数据的解释精度。通过对不同裂隙倾角与粉煤灰掺量交互作用下的裂隙岩石试块开展不同频率（100 Hz，10 kHz，100 kHz，200 kHz）的电阻率测试，重点分析了裂隙岩石试块电阻率随测试频率变化的响应规律。试验结果表明：试块电阻率与测试频率整体上呈现负相关性，高频区（10～200 kHz）变化相对于低频区（100～10000 Hz）更加稳定；电阻率随测试频率增加而降低，但降幅呈渐小趋势，最后电阻率基本趋于稳定；不同条件下裂隙岩石试块电阻率与测试频率呈强指数函数关系，且拟合效果较好。研究成果可为岩体注浆工程的动态监测与安全评估提供理论依据。
- 裂隙岩体 /
- 粉煤灰 /
- 电阻率 /
- 测试频率 /
- 导电特性
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

HTML全文

图 1 试验流程图

Figure 1. Test flowchart

下载: 全尺寸图片幻灯片

图 2 不同配比粉煤灰试块电阻率随频率变化曲线

Figure 2. Curve of resistivity of specimens with different proportions of fly ash varying with frequency

下载: 全尺寸图片幻灯片

图 3 不同倾角试样电阻率随频率变化曲线

Figure 3. Curve of resistivity of samples with different inclinations varying with frequency

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图 4 试块电阻率随频率的变化趋势

Figure 4. Trend of the resistivity of the test block with respect to frequency

下载: 全尺寸图片幻灯片

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