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Article
Precise application of grouting technology in underground coal mining: water inrush risk of floor elimination
Many coal mines in China suffer from the Ordovician limestone (OL) and Carboniferous limestone (CL) containing water inrush frequently due to the complex geology condition; water inrush has become a serious di...
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Article
Open AccessA state-of-the-art review on rock seepage mechanism of water inrush disaster in coal mines
Water inrush is one of the most dangerous disasters in coal mining. Due to the large-scale mining and complicated hydrogeological conditions, thousands of deaths and huge economic losses have been caused by wa...
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Article
Mechanical and damage properties of coal specimens considering the impact and cyclic loading
In this study, the split Hopkinson pressure bar impact tests, uniaxial cyclic loading and unloading (UCLU) tests on anthracite specimens were conducted. The effects of impact loads with different strain rates ...
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Article
A reinforcement method of floor grouting in high-water pressure working face of coal mines: a case study in Luxi coal mine, North China
The working face is seriously threatened by limestone aquifer with high-water pressure in coal seam floor when Permo-Carboniferous coal is mined in North China Coalfield. Mine water control has become one of t...
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Article
Prediction and Prevention of Water Inrush Hazards from Bed Separation Space
The rock plate (RP) method can be used to identify the size and location of potentially dangerous bed separation space (BSS) in coal mines. The RP method is performed in three steps: (1) The rock strata above ...
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Article
Simulation research on the mechanism of water inrush from fractured floor under the dynamic load induced by roof caving: taking the **nji Second Coal Mine as an example
The deformation and failure modes of the fractured floor are very complicated, under the coupled action of the dynamic and static stress superposition disturbance as well as the seepage field induced by high s...
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Article
Study on the failure mechanism of clay layer overlying thin bedrock in coal seam mining
The water-blocking property of clay at the bottom of the Cenozoic overburden is an important factor for mining safety and protecting underground latent water resources in thin bedrock coal seam mining. The fai...
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Article
A Set of Methods to Predict Water Inrush from an Ordovician Karst Aquifer: A Case Study from the Chengzhuang Mine, China
To ensure safe mining of the 3153 working face in the Chengzhuang mine, with its thin aquifuge, we developed a complete set of methods, including transient electromagnetics, drilling, a water injection experim...
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Article
Mechanism of water inrush driven by grouting and control measures—a case study of Chensilou mine, China
Water inrush into coal mines from aquifers underlying coal seams often causes serious casualties and economic losses. The key to preventing the disaster is to discover a water inrush mechanism suitable for spe...
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Article
A method for prevent water inrush from karst collapse column: a case study from Sima mine, China
Mining-induced groundwater inrush could result in serious economic losses and casualties. This disaster usually depends on geological structure, such as the karst collapse column (KCC). It could reduce the aqu...
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Article
Effect of mining on shear sidewall groundwater inrush hazard caused by seepage instability of the penetrated karst collapse pillar
Mining-induced groundwater inrush, a type of serious hazard for underground coal extraction, occurs in tunnel or coal face combined with a large volume of groundwater gushing. It has an impartible relationship...
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Article
Impact of particle transfer on flow properties of crushed mudstones
Karst collapse pillar (KCP) is widespread in North China coalfields, where coal extraction above the Ordovician limestone aquifer is threatened by the abundant supply of water and a very high hydraulic pressur...
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Article
Compaction and seepage properties of crushed limestone particle mixture: an experimental investigation for Ordovician karst collapse pillar groundwater inrush
As mining activity rapidly develops to deeper and deeper ground, there have been an increasing number of groundwater inrush events occurring in China. The Ordovician limestone karst collapse pillar (KCP), whic...
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Article
Effect of Particle Mixture on Seepage Properties of Crushed Mudstones
Crushed rocks, especially mudstones, whose seepage properties are strongly influenced by particle mixture during compaction due to muds will be washed away after water flow. The present study focuses on the po...
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Article
Groundwater inflow prediction model of karst collapse pillar: a case study for mining-induced groundwater inrush risk
The prediction of groundwater inflow in karst collapse pillar has an important impact on safety underground mining, and the occurrence of these groundwater disasters is likely to be controlled and decreased vi...
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Article
Mechanical behavior of a coal seam penetrated by a karst collapse pillar: mining-induced groundwater inrush risk
A karst collapse pillar (KCP) is caused by the karst subsidence that occurs in carbonate rock distribution areas. Current KCP studies focus mainly on aspects such as the cause of formation, rule of developmen...
