Study on Dynamic Disaster Mechanisms of Thick Hard Roof Induced by Hydraulic Fracturing in Surface Vertical Well
With the increase in mining depth and the deterioration of mining conditions, thick and hard overburden movement frequently induces mine earthquakes and rock bursts. Some mines are expected to prevent and control super thick hard rock mine earthquakes through vertical ground well water fracturing...
| Main Authors: | , , , , , , , , |
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| Format: | Journal Article |
| Published: |
MDPI AG
2022
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| Online Access: | http://hdl.handle.net/20.500.11937/89732 |
| _version_ | 1848765277470195712 |
|---|---|
| author | Shang, Xiaoguang Zhu, Sitao Jiang, Fuxing Liu, Jinhai Li, Jiajie Hitch, Michael Liu, Hongliang Tang, Shibin Zhu, Chun |
| author_facet | Shang, Xiaoguang Zhu, Sitao Jiang, Fuxing Liu, Jinhai Li, Jiajie Hitch, Michael Liu, Hongliang Tang, Shibin Zhu, Chun |
| author_sort | Shang, Xiaoguang |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | With the increase in mining depth and the deterioration of mining conditions, thick and
hard overburden movement frequently induces mine earthquakes and rock bursts. Some mines are
expected to prevent and control super thick hard rock mine earthquakes through vertical ground
well water fracturing technology. However, the dynamic underground disaster appears more intense.
Taking the ʹ11.30ʹ mine earthquake in a mine in Shandong Province as the engineering
background, the dynamic disaster mechanism of an extraordinarily thick and hard roof induced by
hydraulic fracturing of vertical wells on the ground was studied utilizing field investigation, accident
case analysis, similar material simulation test, and theoretical analysis. The main conclusions
are as follows: (1) After hydraulic fracturing vertical wells on the ground, the movement mode of
thick and hard roofs changed from layer‐by‐layer to overall sliding movement; (2) The influence
range of the advanced abutment pressure of the working face is reduced by the hydraulic fracturing
of the vertical shaft, and the peak value of the advanced abutment pressure increases. Furthermore,
the advanced abutment pressureʹs peak is far from the coal wall; (3) The hydraulic fracturing
technology of cross‐arranged vertical surface deep and shallow wells and the hydraulic
fracturing technology of cross‐perforated surface multi‐branch horizontal wells are proposed to
avoid the dynamic disaster of overall sliding movement of an extremely thick hard roof induced by
surface hydraulic fracturing. Therefore, these research results provide significance for preventing
and controlling mine earthquakes and rock bursts in super thick hard roof mines. |
| first_indexed | 2025-11-14T11:32:42Z |
| format | Journal Article |
| id | curtin-20.500.11937-89732 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T11:32:42Z |
| publishDate | 2022 |
| publisher | MDPI AG |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-897322023-01-30T03:48:54Z Study on Dynamic Disaster Mechanisms of Thick Hard Roof Induced by Hydraulic Fracturing in Surface Vertical Well Shang, Xiaoguang Zhu, Sitao Jiang, Fuxing Liu, Jinhai Li, Jiajie Hitch, Michael Liu, Hongliang Tang, Shibin Zhu, Chun With the increase in mining depth and the deterioration of mining conditions, thick and hard overburden movement frequently induces mine earthquakes and rock bursts. Some mines are expected to prevent and control super thick hard rock mine earthquakes through vertical ground well water fracturing technology. However, the dynamic underground disaster appears more intense. Taking the ʹ11.30ʹ mine earthquake in a mine in Shandong Province as the engineering background, the dynamic disaster mechanism of an extraordinarily thick and hard roof induced by hydraulic fracturing of vertical wells on the ground was studied utilizing field investigation, accident case analysis, similar material simulation test, and theoretical analysis. The main conclusions are as follows: (1) After hydraulic fracturing vertical wells on the ground, the movement mode of thick and hard roofs changed from layer‐by‐layer to overall sliding movement; (2) The influence range of the advanced abutment pressure of the working face is reduced by the hydraulic fracturing of the vertical shaft, and the peak value of the advanced abutment pressure increases. Furthermore, the advanced abutment pressureʹs peak is far from the coal wall; (3) The hydraulic fracturing technology of cross‐arranged vertical surface deep and shallow wells and the hydraulic fracturing technology of cross‐perforated surface multi‐branch horizontal wells are proposed to avoid the dynamic disaster of overall sliding movement of an extremely thick hard roof induced by surface hydraulic fracturing. Therefore, these research results provide significance for preventing and controlling mine earthquakes and rock bursts in super thick hard roof mines. 2022 Journal Article http://hdl.handle.net/20.500.11937/89732 10.3390/min12121537 http://creativecommons.org/licenses/by/4.0/ MDPI AG fulltext |
| spellingShingle | Shang, Xiaoguang Zhu, Sitao Jiang, Fuxing Liu, Jinhai Li, Jiajie Hitch, Michael Liu, Hongliang Tang, Shibin Zhu, Chun Study on Dynamic Disaster Mechanisms of Thick Hard Roof Induced by Hydraulic Fracturing in Surface Vertical Well |
| title | Study on Dynamic Disaster Mechanisms of Thick Hard Roof
Induced by Hydraulic Fracturing in Surface Vertical Well |
| title_full | Study on Dynamic Disaster Mechanisms of Thick Hard Roof
Induced by Hydraulic Fracturing in Surface Vertical Well |
| title_fullStr | Study on Dynamic Disaster Mechanisms of Thick Hard Roof
Induced by Hydraulic Fracturing in Surface Vertical Well |
| title_full_unstemmed | Study on Dynamic Disaster Mechanisms of Thick Hard Roof
Induced by Hydraulic Fracturing in Surface Vertical Well |
| title_short | Study on Dynamic Disaster Mechanisms of Thick Hard Roof
Induced by Hydraulic Fracturing in Surface Vertical Well |
| title_sort | study on dynamic disaster mechanisms of thick hard roof
induced by hydraulic fracturing in surface vertical well |
| url | http://hdl.handle.net/20.500.11937/89732 |