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Based on the test principles of geological mechanics model and engineering geological and hydrogeological conditions of Nansi Lake, 12 geological mechanics model are established. By simulating the coal mining under the l...

This article looks at the politics of coal mining in East Kalimantan in Indonesia and La Guajira in Colombia. The focus is on government power and business interests. In a Marxian theoretical framework, the study questio...

Abstract Land subsidence induced by underground coal mining consistently leads to persistent ponding in coal-grain overlapping areas (COAs), substantially impairing agricultural productivity. However, amid stringent farm...

Abstract Thick-hard roof fracturing presents a significant challenge for disaster prevention in longwall mining. This study investigates the 15,311 south working face and develops a mechanical model to analyze energy rel...

Abstract The residual coal pillar and adjacent goafs in the upper coal seam have a superposition effect on the stress environment of the lower coal seam in close distance coal seams with downward mining. Therefore, it is...

This study presents pioneering research addressing the challenge of surrounding rock control in gob-side entry retaining by roof cutting under the conditions of a gently inclined coal seam with an extra-thick main roof r...

Chattanooga has undergone a remarkable transformation from a heavily industrialized rail depot and one of the nation’s most polluted cities to the first designated National Park City in the United States of America...

Abstract With the intensifying depletion of coal resources, water hazard prevention and control for confined coal seam mining—characterized by ultra-thin aquicludes in both roof and floor adjacent to dual confined aqui...

Open-pit coal mine rehabilitation is essential to mitigate ecosystem degradation and biodiversity loss. Given that ants (Hymenoptera: Formicidae) are excellent bioindicators, we evaluated the response of their communitie...

This study proposes a deep-hole directional blasting technology based on polymer energy charge packages for roof cutting and pressure relief as a solution to difficult roadway support and poor stability of coal pillars d...

To investigate the influence mechanism of roof pre-splitting blasting on overlying strata movement in automated roadway formation without coal pillars, the mechanical response characteristics of the bearing structure of ...

During this time, the determination of the mine coordinates location done by the fieldman of PT. Kalimantan Earth Results was using a GPS locator. Found 27 points of coal mines and 18 coal ports spread across the souther...

Abstract Occupational Health and Safety (OHS), which holds substantial importance due to its profound human implications and far-reaching economic consequences, requires effective management to minimize workplace acciden...

Abstract In Australian open cut coal mines, floor disruption blasting is emerging as a promising technique for mitigating low wall failures by disturbing the continuity of shear planes within weak geological layers. Howe...

Abstract The uncontrolled floor heave in gob-side entry retaining is the serious problem of underground coal mining. This phenomenon has gravely restricted the application of pillarless mining that has been increasingly ...

Abstract Jurassic sandy mudstone formations are common in the Ordos mining area, and the diagenetic period is relatively late. The lithological characteristics and creep mechanical properties of this formation form the b...