Fracture behavior and acoustic emission characteristics of sandstone samples with inclined precracks
L Dou, K Yang, X Chi - International Journal of Coal Science & Technology, 2021 - Springer
Sandstone samples with precracks of different dip angles were collected from a coal mine
roof and subjected to uniaxial compression tests, and acoustic emission (AE) and scanning …
roof and subjected to uniaxial compression tests, and acoustic emission (AE) and scanning …
Early warning of coal dynamic disaster by precursor of AE and EMR" quiet period"
S He, M Qin, L Qiu, D Song, X Zhang - International Journal of Coal …, 2022 - Springer
Efficient and accurate monitoring and early warning of coal dynamic disaster and other
disasters can provide guarantee for the efficient operation of mine transportation system …
disasters can provide guarantee for the efficient operation of mine transportation system …
[HTML][HTML] Resistivity response of coal under hydraulic fracturing with different injection rates: A laboratory study
Resistivity will have different response characteristics to the hydraulic fracture propagation
process. In this work, a resistivity testing system for hydraulic fracturing specimens was …
process. In this work, a resistivity testing system for hydraulic fracturing specimens was …
Developing a new bursting liability index based on energy evolution for coal under different loading rates
The risk of a coal burst rises with the excavation depth and other mining-related activities.
These devastating coal burst activities are a major concern during deep coal mining. During …
These devastating coal burst activities are a major concern during deep coal mining. During …
Prediction of an early failure point using infrared radiation characteristics and energy evolution for sandstone with different water contents
Water is one of the most effective agents that weaken the physio-mechanical properties of
rock, trigger significant construction delays, endanger the construction operation, and lead to …
rock, trigger significant construction delays, endanger the construction operation, and lead to …
Numerical simulation study on the multi-physical field response to underground coal and gas outburst under high geo-stress conditions
B Zhao, G Wen, J Nian, Q Ma, C Fan, X Lv, C Deng - Minerals, 2022 - mdpi.com
Based on thermal–fluid–solid coupling law in coal and gas outburst, a multi-physical field
numerical analysis model is built for the whole outburst process. The response laws of …
numerical analysis model is built for the whole outburst process. The response laws of …
Numerical investigation of the effects of proppant embedment on fracture permeability and well production in Queensland coal seam gas reservoirs
This paper introduces the development of a new predictive model in support of proppant
injection in naturally fractured coal seam gas (CSG) reservoirs. In the proposed model, the …
injection in naturally fractured coal seam gas (CSG) reservoirs. In the proposed model, the …
Prediction of sandstone dilatancy point in different water contents using infrared radiation characteristic: Experimental and machine learning approaches
In rock mechanics, the dilatancy point is always occurring before rock failure during loading
process. Water content plays a significant role in the rock physiomechanical properties …
process. Water content plays a significant role in the rock physiomechanical properties …
The role of sorption-induced coal matrix shrinkage on permeability and stress evolutions under replicated in situ condition for CBM reservoirs
Matrix shrinkage is a unique property of coal which dictates the sorption induced strain in the
constitutive relation. Both permeability and stress profiles are passively modified with …
constitutive relation. Both permeability and stress profiles are passively modified with …
Development of Predictive Models for Determination of the Extent of Damage in Granite Caused by Thermal Treatment and Cooling Conditions Using Artificial …
Thermal treatment followed by subsequent cooling conditions (slow and rapid) can induce
damage to the rock surface and internal structure, which may lead to the instability and …
damage to the rock surface and internal structure, which may lead to the instability and …