Mining-induced fault reactivation associated with the main conveyor belt roadway and safety of the Barapukuria Coal Mine in Bangladesh: Constraints from BEM simulations

Islam, Md. Rafiqul; Shinjo, Ryuichi

doi:10.1016/j.coal.2009.06.007

Cited by 111 publications

(42 citation statements)

References 37 publications

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“…It is shown that the newly generated fractures in the water-resisting rock layer have created a groundwater flow network. Studies reveal that the network consists of two main hydrogeological structures, namely a core and a connected fracture zone (Babiker and Gudmundsson, 2004;Gudmundsson et al, 2001;Islam and Shinjo, 2009b). The core, consisting mainly of cataclastic rocks, has a low permeability.…”

Section: Numerical Simulation Of Groundwater Outburst Processmentioning

confidence: 99%

“…High permeability and dilation within the fault zone allows the upward migration of groundwater from the base of the fault, as local areas of confined aquifer. Moreover, further wetting of the fault zone, though not completely connected hydraulically with the aquifer, would decrease the mechanical strength of water-resisting strata (Islam and Shinjo, 2009b;Wu et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

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Numerical investigation of groundwater outbursts near faults in underground coal mines

Yang

Liang

et al. 2011

International Journal of Coal Geology

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Section: Numerical Simulation Of Groundwater Outburst Processmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Numerical investigation of groundwater outbursts near faults in underground coal mines

Yang

Liang

et al. 2011

International Journal of Coal Geology

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“…The change law of stress and displacement of fault plane were studied using numerical simulation (Li et al, 2008). The characteristics of stress change near fault were studied using numerical simulation (Islam et al, 2009). By monitoring the AE activity of the fault zone, the influence of mining activity on the fault zone was analyzed (Naoi et al, 2015).…”

Section: Working Face Stress Evolution Law During Footwall Miningmentioning

confidence: 99%

Study on the law mining stress evolution and fault activation under the influence of normal fault

Wu¹

2017

Acta Geodynamica Et Geomaterialia

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Using the FLAC 3D numerical simulation method, the characteristics of mining stress evolution, fault activation patterns, and fault energy evolution characteristics are simulated and analyzed in the process of the footwall and hanging wall working face heading to a normal fault. The study shows that the fault cut off the mining stress propagation of overlying strata, and the stress blocking effect due to the fault is evident. When working faces head towards a fault, the abutment pressure and the vertical stress of the surrounding rock increase first and subsequently decrease. The abutment pressure of the coal wall and fault is highest when the distances to the fault are 40 m and 30 m for the footwall and hanging wall working faces, respectively. Moreover, the hanging wall mining stress is higher than the footwall mining stress. Fault activation in high-located strata precedes that in low-located strata when working faces head towards the normal fault. Energy is gradually accumulated before unstable fault events take place because of mining, and fault instability quickly releases a lot of energy. The mining stress concentration and fault activation due to faults easily result in rock bursts and mine seismicity. ARTICLE INFO

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“…In most cases, the fault zone is a weak zone with low strength, deformability, high water permeability and poor water resistance, and the physical and mechanical properties of the rock mass on both sides of the fault are significantly different (Liu, et al, 2010). A roadway crosses the fault zone where the geological conditions are complex and abrupt (Islam and Shinjo, 2009), the surrounding rock has asymmetric large deformation and failure under the influence of high stress, fault and fracture cutting, which makes the deep roadway support problem more serious (Wang, et al, 2000;He, et al,2011).…”

Section: Introductionmentioning

confidence: 99%

Supporting Reinforcement and Stability Analysis of the Roadway Crossing the Fault in Deep Mining

2017

Revista Tecnica De La Facultad De Ingenieria Universidad Del Zu

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There is a F3 large fault with inclination close to 90° in the Xiling mining area of Sanshandao gold mine, and the entire middle roadway driving through the F3 fault. The surrounding rock is broken, so the stability of the surrounding rock is very poor in the process of roadway crossing, and the problems of collapse and large deformation appear. In order to ensure the safety of mining and construction, it is very important to put forward the support design scheme of advanced support bolt, U-shaped steel frame and shotcrete in order to ensure the stability of the surrounding rock based on the joint fissure statistics, the quality of the surrounding rock and the stress environment test. Through the numerical modeling, the stress, displacement and the distribution of the plastic damage zone of the roadway surrounding are analyzed during the tunneling process. The results show that the support system can effectively control the deformation and damage of roadway surrounding rock during the roadway crossing fault, and has good support function to the roadway surrounding rock in the surrounding area. It can guarantee the safety of personnel and equipment in the process of roadway excavation and postmining and transportation.

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Mining-induced fault reactivation associated with the main conveyor belt roadway and safety of the Barapukuria Coal Mine in Bangladesh: Constraints from BEM simulations

Cited by 111 publications

References 37 publications

Numerical investigation of groundwater outbursts near faults in underground coal mines

Numerical investigation of groundwater outbursts near faults in underground coal mines

Study on the law mining stress evolution and fault activation under the influence of normal fault

Supporting Reinforcement and Stability Analysis of the Roadway Crossing the Fault in Deep Mining

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