The stratified mining of super thick coal seam is a process of repeated disturbance of the top roof, especially in the lower stratification, the upper complex rock layer has a greater settlement space, resulting in great changes in the strata structure and fissure distribution. The main coal seam thickness of Rujigou Coal Mine exceeds 20 m, due to the high gas content of the coal seam, it is prone to spontaneous combustion, and the stratified mining method is adopted. When a small-size section coal pillar (less than 10 m) is used, the complex rock structure evolution and fissure development characteristics during the stratified mining of shallow buried thick coal seam will directly affect the movement of gas transportation between the worki...
The movements of overburden induced by mining a thick coal seam with a hard roof extend widely. The ...
With the development of mining depth, multi-seam mining activities is becoming more and more frequen...
With the development of mining depth, multi-seam mining activities is becoming more and more frequen...
Longwall mechanized top coal caving mining (LMTCCM) in extra-thick coal seams has its own characteri...
To study the caving of thick hard overburdens and evolution of water-conducting fracture zones in fu...
Extremely close coal seam groups are widely distributed in China, and the main mining method is down...
AbstractAccidents such as support failure and excessive deformation of roadways due to drastic chang...
The basis of traditional ground pressure and strata control techniques is the key strata theory, whe...
Quite a number of shallow buried coal seams (SBCS) are distributed in China. The overburden is easil...
In mining process, the height of water flowing fractured zone is important significance to prevent m...
The aim of this study is to explore the coupling relationship between fractures in overlying strata ...
When the hard and thick key strata are located above the working face, the bed separation structure ...
Mining-induced fractures in underground coal mining face affect the stability of overburdens and pro...
During the full-mechanized caving mining, the overburden strata in the double system and extrathick ...
Figuring out the mining-crack-evolution characteristics of overburden strata is very important to ro...
The movements of overburden induced by mining a thick coal seam with a hard roof extend widely. The ...
With the development of mining depth, multi-seam mining activities is becoming more and more frequen...
With the development of mining depth, multi-seam mining activities is becoming more and more frequen...
Longwall mechanized top coal caving mining (LMTCCM) in extra-thick coal seams has its own characteri...
To study the caving of thick hard overburdens and evolution of water-conducting fracture zones in fu...
Extremely close coal seam groups are widely distributed in China, and the main mining method is down...
AbstractAccidents such as support failure and excessive deformation of roadways due to drastic chang...
The basis of traditional ground pressure and strata control techniques is the key strata theory, whe...
Quite a number of shallow buried coal seams (SBCS) are distributed in China. The overburden is easil...
In mining process, the height of water flowing fractured zone is important significance to prevent m...
The aim of this study is to explore the coupling relationship between fractures in overlying strata ...
When the hard and thick key strata are located above the working face, the bed separation structure ...
Mining-induced fractures in underground coal mining face affect the stability of overburdens and pro...
During the full-mechanized caving mining, the overburden strata in the double system and extrathick ...
Figuring out the mining-crack-evolution characteristics of overburden strata is very important to ro...
The movements of overburden induced by mining a thick coal seam with a hard roof extend widely. The ...
With the development of mining depth, multi-seam mining activities is becoming more and more frequen...
With the development of mining depth, multi-seam mining activities is becoming more and more frequen...