Hydroelectric simulation of the phreatic water response of mining cracked soil based on microbial solidification
Coal mining in ecologically fragile areas results in the failure of aquiclude layers and the loss of surface water bodies. Herein, research was conducted on the microbial solidification of cracked soils and the corresponding response of the ecological water table. A simulation of mining-induced crac...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2025-02-01
|
| Series: | Open Geosciences |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/geo-2022-0728 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1823860495185084416 |
|---|---|
| author | Gao Ying Ismail Mohd Ashraf Mohamad Li Tao Li Bo Zhang Jiarui |
| author_facet | Gao Ying Ismail Mohd Ashraf Mohamad Li Tao Li Bo Zhang Jiarui |
| author_sort | Gao Ying |
| collection | DOAJ |
| description | Coal mining in ecologically fragile areas results in the failure of aquiclude layers and the loss of surface water bodies. Herein, research was conducted on the microbial solidification of cracked soils and the corresponding response of the ecological water table. A simulation of mining-induced cracked soils was performed via microbial solidification. The mechanical and hydrological properties of cracked soil samples repaired with different filling materials were compared via unconfined compressive strength and falling head permeability tests. Hydraulic-electric similarity modeling techniques were employed to evaluate the effectiveness of microbial solidification in the aquiclude layers. After low-temperature acclimation, Bacillus megaterium adapted to the geological environment of the study area, exhibiting a high viable cell density. When the cracked soil was filled with a 1:1 ratio of aeolian sand to clay particles, the microbially remediated soil demonstrated optimal mechanical and hydraulic properties. Hydraulic-electric similarity numerical simulations revealed that the ecological water table at the coalface remained within a reasonable range following microbial solidification, suggesting that microbial solidification achieved water-preserving coal mining. These findings provide a reference for restoring aquiclude layers damaged by coal mining. |
| format | Article |
| id | doaj-art-5d5cae21b30e4855b21c2214a4840811 |
| institution | Kabale University |
| issn | 2391-5447 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Open Geosciences |
| spelling | doaj-art-5d5cae21b30e4855b21c2214a48408112025-02-10T13:24:15ZengDe GruyterOpen Geosciences2391-54472025-02-01171186889810.1515/geo-2022-0728Hydroelectric simulation of the phreatic water response of mining cracked soil based on microbial solidificationGao Ying0Ismail Mohd Ashraf Mohamad1Li Tao2Li Bo3Zhang Jiarui4School of Civil Engineering, Universiti Sains Malaysia, Penang, 11800, MalaysiaSchool of Civil Engineering, Universiti Sains Malaysia, Penang, 11800, MalaysiaSchool of Civil Engineering, Universiti Sains Malaysia, Penang, 11800, MalaysiaSchool of Resource and Environmental Engineering, Guizhou University, Guiyang, Guizhou 50000, ChinaSchool of Geology and Environment, Xi’an University of Science and Technology, Xi’an, Shaanxi 710065, ChinaCoal mining in ecologically fragile areas results in the failure of aquiclude layers and the loss of surface water bodies. Herein, research was conducted on the microbial solidification of cracked soils and the corresponding response of the ecological water table. A simulation of mining-induced cracked soils was performed via microbial solidification. The mechanical and hydrological properties of cracked soil samples repaired with different filling materials were compared via unconfined compressive strength and falling head permeability tests. Hydraulic-electric similarity modeling techniques were employed to evaluate the effectiveness of microbial solidification in the aquiclude layers. After low-temperature acclimation, Bacillus megaterium adapted to the geological environment of the study area, exhibiting a high viable cell density. When the cracked soil was filled with a 1:1 ratio of aeolian sand to clay particles, the microbially remediated soil demonstrated optimal mechanical and hydraulic properties. Hydraulic-electric similarity numerical simulations revealed that the ecological water table at the coalface remained within a reasonable range following microbial solidification, suggesting that microbial solidification achieved water-preserving coal mining. These findings provide a reference for restoring aquiclude layers damaged by coal mining.https://doi.org/10.1515/geo-2022-0728micpcoal mining with water conservationdownward crackcracked soil massaquifuge restorationsimilar simulation |
| spellingShingle | Gao Ying Ismail Mohd Ashraf Mohamad Li Tao Li Bo Zhang Jiarui Hydroelectric simulation of the phreatic water response of mining cracked soil based on microbial solidification Open Geosciences micp coal mining with water conservation downward crack cracked soil mass aquifuge restoration similar simulation |
| title | Hydroelectric simulation of the phreatic water response of mining cracked soil based on microbial solidification |
| title_full | Hydroelectric simulation of the phreatic water response of mining cracked soil based on microbial solidification |
| title_fullStr | Hydroelectric simulation of the phreatic water response of mining cracked soil based on microbial solidification |
| title_full_unstemmed | Hydroelectric simulation of the phreatic water response of mining cracked soil based on microbial solidification |
| title_short | Hydroelectric simulation of the phreatic water response of mining cracked soil based on microbial solidification |
| title_sort | hydroelectric simulation of the phreatic water response of mining cracked soil based on microbial solidification |
| topic | micp coal mining with water conservation downward crack cracked soil mass aquifuge restoration similar simulation |
| url | https://doi.org/10.1515/geo-2022-0728 |
| work_keys_str_mv | AT gaoying hydroelectricsimulationofthephreaticwaterresponseofminingcrackedsoilbasedonmicrobialsolidification AT ismailmohdashrafmohamad hydroelectricsimulationofthephreaticwaterresponseofminingcrackedsoilbasedonmicrobialsolidification AT litao hydroelectricsimulationofthephreaticwaterresponseofminingcrackedsoilbasedonmicrobialsolidification AT libo hydroelectricsimulationofthephreaticwaterresponseofminingcrackedsoilbasedonmicrobialsolidification AT zhangjiarui hydroelectricsimulationofthephreaticwaterresponseofminingcrackedsoilbasedonmicrobialsolidification |