Distribution Characteristics of the Geoelectric Field in Waste Dump Slopes during the Evolution of Instability Sources under Rainfall Conditions
Source abstract
Abstract
To study the evolution of geological hazard sources of waste dump slopes under rainfall conditions, a physical model of a rainfall-affected slope was designed. The apparent resistivity of the slope rock and soil mass at different rainfall times was measured via the high-density resistivity method, and the formation process of internal disaster sources of the rainfall-affected slope was obtained. The variation characteristics of the resistivity of the rain-affected slope were analyzed when it had a weak surface and crack development. Based on the three-water model and Maxwell conductivity formula, the evolution process of geological hazard sources of the rainfall-affected slope was summarized. A resistivity response mechanism equation for rainfall-induced slope hazard sources was derived and compared to the Archie formula, verifying the model rationality. The test results showed that the behavior of the rainfall-affected slope conforms to the saturated–unsaturated dynamic cycle process. The apparent resistivity was positively correlated with the development of slope pores and cracks and negatively correlated with the water content in the slope. The apparent resistivity increased during fracture development and decreased during water seepage. In the slope failure and disaster process, the apparent resistivity varies under the coupling effect of crack development and water seepage. During the formation of geological hazard sources, the apparent resistivity abruptly changes and fluctuates. Therefore, according to the abrupt changes and abnormal fluctuations in the apparent resistivity detected, the development of geological hazard sources of slopes can be determined.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Landslides and related hazards · Rock Mechanics and Modeling · Geotechnical Engineering and Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Mining and Coal, Inner Mongolia University of Science and Technology, Baotou 014010, China
College of Resources and Civil Engineering, Northeastern University, Shengyang 110057, China
Funding
University fund of Inner Mongolia Autonomous Region of China · China’s national science and technology innovation fund for College Students · Inner Mongolia Natural Fund
References (50)
Show source-provided references
1. Stability and control measures of open—Pit mine dump slope under rainfall conditions
2. Group-occurring landslides and debris flows caused by the continuous heavy rainfall in June 2019 in Mibei village, Longchuan County, Guangdong Province, China10.1007/s11069-021-04819-1 ↗
3. Exploiting historical rainfall and landslide data in a spatial database for the derivation of critical rainfall thresholds10.1007/s12665-017-6545-5 ↗
4. Rodríguez-Pacheco, R., Caparrós, A.V., Alcolea, A., Martínez-Pagán, P., Martínez-Segura, M.A., García-García, C., Faz, Á., Corral, I., Roque, C., and Zarroca, M. (2022). Static Liquefaction Causes the Flow Failure of a Tailings Dam: A Case Study of El Descargador, Cartagena-La Unión Mining Region, SE Spain (October 1963). Minerals, 12.10.3390/min12121488 ↗
5. Investigation on rainwater infiltration into layered shallow covers in pyroclastic soils and its effect on slope stability10.1016/j.enggeo.2017.02.006 ↗
6. Seepage characteristics of layered soil slope under rainfall conditions
7. Lazar, A., Vižintin, G., Beguš, T., and Vulić, M. (2020). The Use of Precise Survey Techniques to Find the Connection between Discontinuities and Surface Morphologic Features in the Laže Quarry in Slovenia. Minerals, 10.10.3390/min10040326 ↗
8. Zhao, Z.H. (2015). Detection of Geological Disaster and Instability Risk Assessment of Open Pit High Slope, China University of Mining & Technology.
9. Landslide displacement prediction based on multi-source data fusion and sensitivity states
10. Investigation on Factors Affecting Slope Instability in Open-pit Mines Based on Geophysical Prospecting Technology
11. Analysis of shallow landslide mechanism of expansive soil slope under rainfall: A case study10.1007/s12517-021-06829-6 ↗
12. Temporal and spatial characteristics of moisture migration and instability mechanism of cracked soil slope under rainfall infiltration
13. Field model test on failure mechanism of artificial cut-slope rainfall in Southern Jiangxi
14. Slope monitoring: An application of time-lapse electrical resistivity imaging method in Bukit Antarabangsa, Kuala Lumpur10.1007/s12665-018-8019-9 ↗
15. Model tests on moisture migration based on high-density electrical resistivity tomography method
16. Study on moisture migration in natural slope using high-density electrical resistivity tomography method
17. Study on the evolution rule of land damage based on electrical resistivity imaging technology in mining face10.1007/s10706-019-00905-1 ↗
18. Application of resistivity method in the study of damage accumulation of rock slope with weak intercalation
19. Unsaturated soil mechanics in engineering practice10.1061/(ASCE)1090-0241(2006)132:3(286) ↗
20. Rainfall seepage characteristics of open-pit high slopes with gently-inclined soft interlayers
21. Determination of water content of saline soil with multi-electrode resistivity method
22. Resistivity water Content Model of a Typical Loam Section
23. Electrical resistivity variation of compressed rock and damage evolution of overburden in coal mine goaf
24. Study on variation of electrical resistivity under uniaxial pressure environment for rocks
25. Electrical resistivity and acoustic emission response characteristics and damage evolution of sandstone during whole process of uniaxial compression10.3901/JME.2014.18.014 ↗
26. Rapd least-squares inversion of 2-D apparent resistivity pseudosection
27. Technology of Detecting Dyke’s Hidden Danger Using Time-lapse High-density Resistivity Method
28. Research on time-shift high-density electrical method for detecting hidden dangers in dikes
29. Application of Time-lapse Resistivity Method on Refuse Dump Percolate Monitoring
30. Archie’s formula: Historical backgroundand earlier debates
31. Cracking in drying soils10.1139/t92-030 ↗
32. Assessing internal stress evolution in unsaturated soils
33. Review on soil desiccation cracking behavior and the mechanism related to fracture mechanics
34. Apparent resistivity anisotropic variations in cracked medium
35. The resistivity damage model of residual under uniaxial load and the law of drying-wetting effects
36. Reynolds, J.M. (2002). An Introduction to Applied and Environmental Geophysics, John Wiley & Sons.
37. Study on Model between Water Content and Electrical Resistivity for Natural Slope of Silty Clay
38. Wetting Solution and Electrical Double Layer Contributions to Bulk Electrical Conduc-tivity of Sand-Clay Mixtures10.2136/vzj2007.0141 ↗
39. The micro-structures of clay given by resistivity measurements10.1016/S0013-7952(99)00060-5 ↗
40. Application of three water model in reservoir log interpretation in Yaoyingtai oil field
41. The application of three-water conduction model in the interpretation of low-resistivity reservoir
42. New three-water conduction model and its application in the evaluation of low porosity and low permeability reservoir
43. The electrical resistivity log as an aid in determining some reservoir characteristics
44. Estimation of water saturation from nuclear magnetic resonance (NMR) and conventional logs in low permeability sandstone reservoirs10.1016/j.petrol.2013.05.009 ↗
45. Evaluation of low-porosity and low-permeability reservoirs based on the three-water model based reservoir classification method
46. Improvement of new three-water model and determination of its parameters
47. Electrical and dielectric properties of three types of pore water and their frequency dispersion characteristics
48. Experimental study on fissure properties and soil-water response of red clay slope under dry-wet cycle
49. Behaviors and mechanisms of desiccation cracking of soils
50. Variation characteristics of apparent resistivity of fractured coal sample in loading process