Field investigation of grout propagation within a caving mass under flowing water conditions in a metal mine
Abstract Due to the invisibility and complexity of the underground spaces, monitoring the propagation and filling characteristics of the grouting slurry post the water–sand mixture inrush in metal mines is challenging, which complicates engineering treatment. This research investigated the propagati...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2025-06-01
|
| Series: | Deep Underground Science and Engineering |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/dug2.70001 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849726686651744256 |
|---|---|
| author | Baofu Wu Guilei Han Zhiqi Wang Jiabin Shi Hongjiang You Asrullah |
| author_facet | Baofu Wu Guilei Han Zhiqi Wang Jiabin Shi Hongjiang You Asrullah |
| author_sort | Baofu Wu |
| collection | DOAJ |
| description | Abstract Due to the invisibility and complexity of the underground spaces, monitoring the propagation and filling characteristics of the grouting slurry post the water–sand mixture inrush in metal mines is challenging, which complicates engineering treatment. This research investigated the propagation law of cement‐sodium silicate slurry under flowing water conditions within the caving mass of a metal mine. First, based on borehole packer test results and borehole TV images, the fractured strata before grouting were classified into four types: cavity, hidden, fissure, and complete. Second, an orthogonal experimental design was employed to evaluate the impact of four key factors—stratigraphic fragmentation, water flow rate, grouting flow rate, and water‐cement ratio—on the efficacy of grouting within a caving mass at the site. The results indicate that the factors influencing grouting efficacy are ranked in the following order of importance: stratigraphic fragmentation > water flow rate > water–cement ratio > grouting flow rate. Ultimately, five propagation filling modes—pure slurry, big crack, small crack, small karst pore, and pore penetration—were identified by examining the propagation filling characteristics of slurry in rock samples, incorporating microscopic material structure analysis through scanning electron microscopy and energy spectrum analysis. The findings of this study provide valuable insights into selecting engineering treatment parameters and methodologies, serving as a reference for preventing and controlling water–sand mixture inrush in metal mines, thereby enhancing treatment efficacy and ensuring grouting success. |
| format | Article |
| id | doaj-art-87e00726c3c14ff7ac39631a69d5911a |
| institution | DOAJ |
| issn | 2097-0668 2770-1328 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Wiley |
| record_format | Article |
| series | Deep Underground Science and Engineering |
| spelling | doaj-art-87e00726c3c14ff7ac39631a69d5911a2025-08-20T03:10:06ZengWileyDeep Underground Science and Engineering2097-06682770-13282025-06-014222224010.1002/dug2.70001Field investigation of grout propagation within a caving mass under flowing water conditions in a metal mineBaofu Wu0Guilei Han1Zhiqi Wang2Jiabin Shi3Hongjiang You4Asrullah5School of Resources and Geosciences, Institute of Mine Water Hazard Prevention and Control Technology China University of Mining and Technology Xuzhou ChinaNorth China Engineering Investigation Institute Co. Ltd. Shijiazhuang ChinaNorth China Engineering Investigation Institute Co. Ltd. Shijiazhuang ChinaNorth China Engineering Investigation Institute Co. Ltd. Shijiazhuang ChinaNorth China Engineering Investigation Institute Co. Ltd. Shijiazhuang ChinaPT. Vale Indonesia Tbk Jakarta IndonesiaAbstract Due to the invisibility and complexity of the underground spaces, monitoring the propagation and filling characteristics of the grouting slurry post the water–sand mixture inrush in metal mines is challenging, which complicates engineering treatment. This research investigated the propagation law of cement‐sodium silicate slurry under flowing water conditions within the caving mass of a metal mine. First, based on borehole packer test results and borehole TV images, the fractured strata before grouting were classified into four types: cavity, hidden, fissure, and complete. Second, an orthogonal experimental design was employed to evaluate the impact of four key factors—stratigraphic fragmentation, water flow rate, grouting flow rate, and water‐cement ratio—on the efficacy of grouting within a caving mass at the site. The results indicate that the factors influencing grouting efficacy are ranked in the following order of importance: stratigraphic fragmentation > water flow rate > water–cement ratio > grouting flow rate. Ultimately, five propagation filling modes—pure slurry, big crack, small crack, small karst pore, and pore penetration—were identified by examining the propagation filling characteristics of slurry in rock samples, incorporating microscopic material structure analysis through scanning electron microscopy and energy spectrum analysis. The findings of this study provide valuable insights into selecting engineering treatment parameters and methodologies, serving as a reference for preventing and controlling water–sand mixture inrush in metal mines, thereby enhancing treatment efficacy and ensuring grouting success.https://doi.org/10.1002/dug2.70001fissured rock massmetal mineslurry propagation fillingtwo‐liquid groutingwater–sand mixture inrush |
| spellingShingle | Baofu Wu Guilei Han Zhiqi Wang Jiabin Shi Hongjiang You Asrullah Field investigation of grout propagation within a caving mass under flowing water conditions in a metal mine Deep Underground Science and Engineering fissured rock mass metal mine slurry propagation filling two‐liquid grouting water–sand mixture inrush |
| title | Field investigation of grout propagation within a caving mass under flowing water conditions in a metal mine |
| title_full | Field investigation of grout propagation within a caving mass under flowing water conditions in a metal mine |
| title_fullStr | Field investigation of grout propagation within a caving mass under flowing water conditions in a metal mine |
| title_full_unstemmed | Field investigation of grout propagation within a caving mass under flowing water conditions in a metal mine |
| title_short | Field investigation of grout propagation within a caving mass under flowing water conditions in a metal mine |
| title_sort | field investigation of grout propagation within a caving mass under flowing water conditions in a metal mine |
| topic | fissured rock mass metal mine slurry propagation filling two‐liquid grouting water–sand mixture inrush |
| url | https://doi.org/10.1002/dug2.70001 |
| work_keys_str_mv | AT baofuwu fieldinvestigationofgroutpropagationwithinacavingmassunderflowingwaterconditionsinametalmine AT guileihan fieldinvestigationofgroutpropagationwithinacavingmassunderflowingwaterconditionsinametalmine AT zhiqiwang fieldinvestigationofgroutpropagationwithinacavingmassunderflowingwaterconditionsinametalmine AT jiabinshi fieldinvestigationofgroutpropagationwithinacavingmassunderflowingwaterconditionsinametalmine AT hongjiangyou fieldinvestigationofgroutpropagationwithinacavingmassunderflowingwaterconditionsinametalmine AT asrullah fieldinvestigationofgroutpropagationwithinacavingmassunderflowingwaterconditionsinametalmine |