Search
Search Results
-
Comprehensive Geophysical Evaluation of Grouting in the Goaf of an Urban Underground Coal Mine
Coal mining goaf is unconsolidated material formed by collapse of overlying strata. Water in goaf can flow into and contaminate surface water...
-
Numerical investigation on mechanism and fluid flow behavior of goaf water inrush: a case study of Dongyu coal mine
Goaf water inrush has become one of the most prominent issues threatening the safety production of coal mines. To better understand how this hazard...
-
Gas Migration Law and Precision Extraction in Close Distance Coal Seam Goaf: A Case Study
Gas disasters are more prominent in complex coal conditions, especially for the close distance coal seam mining that the gas control in the upper...
-
In situ measurement of water accumulation in overlying goaf of coal mine-a transient electromagnetic-based study
Water accumulation detection in mining areas is the primary technical means for preventing mine water disasters. To study the distribution of water...
-
Analysis of water inrush at Dongyu coal mine in China from an old water-logged goaf associated with a syncline fractured zone
Water inrush from old water-logged goafs is a major cause of disaster in coal mines. The conditions at Dongyu Mine (Shanxi Province, China) were...
-
Determining the reasonable pillar width and surrounding rock control based on goaf compaction
The stress distribution and deformation of roadway surrounding rock at different pillar widths are investigated through theoretical calculation,...
-
Application of controlled-source audio-frequency magnetotellurics (CSAMT) for goaf detection: a case study in the Fangzi coal mine China
The subsidence or collapse of coal mine goaf has a great impact on the construction of various large-scale projects and the environment, and can...
-
RETRACTED ARTICLE: Analysis of stress and strain of surrounding rock in goaf based on GIS
In recent years, with the continuous construction of highways in Southwest China, highway tunnels inevitably have to pass through mine tunnels, which...
-
Technology and Performance Analysis of Preventing Surface Subsidence by Sealing and Backfilling the Goaf with Urban Waste
In order to solve the current two major environmental problems of urban waste pollution and surface subsidence above the coal mine goaf, the...
-
Tracer Test Method to Confirm Hydraulic Connectivity Between Goafs in a Coal Mine
Improving utilization of mine water in underground reservoirs requires determining the hydraulic connectivity between goafs. In this study, a new...
-
Numerical Simulation of Inrush Water Spreading Through a Mine: A Case Study of the Beixinyao Mine, Shanxi Province, China
Studies on risk assessment and prediction of inrush water in mines are available, but the evolution process of water inrush events is unclear, which...
-
Influence of Mining Speed on Stope Energy in Deep Mines
Enhancing the mining speed of a working face has become the primary approach to achieve high production and efficiency in coal mines, thereby further...
-
Evolution and management of thick-hard roof using goaf-based multistage hydraulic fracturing technology—a case study in western Chinese coal field
The mining-induced breaking of thick-hard roof is characterized by the microseisms and energy release. To preliminary control rock burst caused by...
-
Detection of Abandoned Coal Mine Goaf in China’s Ordos Basin Using the Transient Electromagnetic Method
Early coal mining and management methods left a large number of unknown goafs in China’s important Ordos Basin, which has restricted the safe...
-
A semi-infinite beam theoretical model on predicting rock slope subsidence induced by underground mining
When the mining goaf is close to the cliff, rock slope subsidence induced by underground mining is significantly affected by its boundary conditions....
-
Damage Analysis of Soaking Gypsum and Safety Evaluation of Goaf: Based on Energy Dissipation Theory
Based on the theory of energy dissipation, the energy dissipation model of gypsum rock was established, and we analyzed the energy dissipation law of...
-
Failure Mechanism and Movement Characteristics of Overlying Strata in Longwall Mining Face with Thick Aquifer
The failure and movement of overlying strata with a thick aquifer are closely related to the water-inrush pressure and the hydraulic coupling in coal...
-
An Innovative Mechanism of Directional Rock Cracking Mechanics and Mine Pressure Control Method for Energy-Gathering Blasting
The extraction of thick coal seams at high intensity inevitably leads to more severe strata pressure, especially when influenced by adjacent goaf...
-
Physical Simulation Study of Mine Water–Sand Inrush Under the Fluid–Structure Interaction
The water–sand inrush accident is a dynamic process from gestation-development-end.
-
Mine Water Inrush and Its Prediction
Under natural conditions, ore bodies, especially in the surrounding rocks, are often filled with groundwater of a certain quantity and composition....