Structural characteristics and variable mass permeability of fall column broken rock mass
In order to analyze the relationship between the configuration characteristics, variable mass permeability characteristics and the catastrophe mechanism of falling column process, The influence of the permeability was studied by diffraction instrument, And using the seepage test system of the fall c...
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| Format: | Article |
| Language: | English |
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Polish Academy of Sciences
2024-03-01
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| Series: | Archives of Civil Engineering |
| Subjects: | |
| Online Access: | https://journals.pan.pl/Content/130795/ACE_2024_01_26.pdf |
| _version_ | 1797234868397015040 |
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| author | Jie Suo Qirong Qin Zhenhua Li |
| author_facet | Jie Suo Qirong Qin Zhenhua Li |
| author_sort | Jie Suo |
| collection | DOAJ |
| description | In order to analyze the relationship between the configuration characteristics, variable mass permeability characteristics and the catastrophe mechanism of falling column process, The influence of the permeability was studied by diffraction instrument, And using the seepage test system of the fall column, The seepage instability process of variable mass broken rock mass is analyzed, The findings suggest that, The proportion of coarse particles accounted for 89.86%, Fine particles accounted for 10.14%, Broken rock particles is better, Low compression performance; The fall column, under strong hydrodynamic conditions, Due to its strong characteristics of migration and loss with water flow, It is easy to induce the subsidence column protrusion water disaster; As the ratio between coarse and fine aggregates increases, Porosity and permeability are both increased; When the axial displacement does not change, With the increasing circumference pressure, The permeability of the broken rock samples is decreasing; The fitting of the seepage velocity of the broken rock mass to the pore pressure gradient follows the Forchheimer relationship, The seepage of the broken rock mass belongs to the category of non-Darcy flow under the triaxial stress; The instability of the subsidence column fracture rock mass presents three seepage instability forms: initial seepage stage, seepage mutation stage and piping stage in different stages. |
| first_indexed | 2024-04-24T16:38:54Z |
| format | Article |
| id | doaj.art-ddedd2e2b84846019bfbc95b03afb8a2 |
| institution | Directory Open Access Journal |
| issn | 1230-2945 2300-3103 |
| language | English |
| last_indexed | 2024-04-24T16:38:54Z |
| publishDate | 2024-03-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Civil Engineering |
| spelling | doaj.art-ddedd2e2b84846019bfbc95b03afb8a22024-03-29T12:12:25ZengPolish Academy of SciencesArchives of Civil Engineering1230-29452300-31032024-03-01No 1459472https://doi.org/10.24425/ace.2024.148922Structural characteristics and variable mass permeability of fall column broken rock massJie Suo0https://orcid.org/0000-0002-7273-2230Qirong Qin1https://orcid.org/0000-0002-1210-6270Zhenhua Li2https://orcid.org/0000-0002-5946-1683School of Geoscience and Technology, Southwest Petroleum University, Chengdu 610500, ChinaSchool of Geoscience and Technology, Southwest Petroleum University, Chengdu 610500, ChinaSchool of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, ChinaIn order to analyze the relationship between the configuration characteristics, variable mass permeability characteristics and the catastrophe mechanism of falling column process, The influence of the permeability was studied by diffraction instrument, And using the seepage test system of the fall column, The seepage instability process of variable mass broken rock mass is analyzed, The findings suggest that, The proportion of coarse particles accounted for 89.86%, Fine particles accounted for 10.14%, Broken rock particles is better, Low compression performance; The fall column, under strong hydrodynamic conditions, Due to its strong characteristics of migration and loss with water flow, It is easy to induce the subsidence column protrusion water disaster; As the ratio between coarse and fine aggregates increases, Porosity and permeability are both increased; When the axial displacement does not change, With the increasing circumference pressure, The permeability of the broken rock samples is decreasing; The fitting of the seepage velocity of the broken rock mass to the pore pressure gradient follows the Forchheimer relationship, The seepage of the broken rock mass belongs to the category of non-Darcy flow under the triaxial stress; The instability of the subsidence column fracture rock mass presents three seepage instability forms: initial seepage stage, seepage mutation stage and piping stage in different stages.https://journals.pan.pl/Content/130795/ACE_2024_01_26.pdfporositysafety of coal mineseepage characteristicssubsidence columnwater burst mechanism |
| spellingShingle | Jie Suo Qirong Qin Zhenhua Li Structural characteristics and variable mass permeability of fall column broken rock mass Archives of Civil Engineering porosity safety of coal mine seepage characteristics subsidence column water burst mechanism |
| title | Structural characteristics and variable mass permeability of fall column broken rock mass |
| title_full | Structural characteristics and variable mass permeability of fall column broken rock mass |
| title_fullStr | Structural characteristics and variable mass permeability of fall column broken rock mass |
| title_full_unstemmed | Structural characteristics and variable mass permeability of fall column broken rock mass |
| title_short | Structural characteristics and variable mass permeability of fall column broken rock mass |
| title_sort | structural characteristics and variable mass permeability of fall column broken rock mass |
| topic | porosity safety of coal mine seepage characteristics subsidence column water burst mechanism |
| url | https://journals.pan.pl/Content/130795/ACE_2024_01_26.pdf |
| work_keys_str_mv | AT jiesuo structuralcharacteristicsandvariablemasspermeabilityoffallcolumnbrokenrockmass AT qirongqin structuralcharacteristicsandvariablemasspermeabilityoffallcolumnbrokenrockmass AT zhenhuali structuralcharacteristicsandvariablemasspermeabilityoffallcolumnbrokenrockmass |