☆ 4.4 Article

A method for characterization of stress concentration degree of coal mine roadway surrounding rock

JOURNAL OF GEOPHYSICS AND ENGINEERING (2023)

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Article Energy & Fuels

Theoretical analysis of drilling cuttings considering stress zoning of surrounding rock and its application in stress detection

Yanfeng Geng et al.

Summary: Drilling cuttings method is widely used to detect rockburst risk in coal mines. However, the current theoretical research does not consider the influence of surrounding rock plastic zone and elastic zone. In this study, a theoretical calculation formula for drilling cuttings in the plastic and elastic zones of roadway sides is established based on the secondary distribution characteristics of roadway side stress. The example shows that the distribution of cuttings is consistent with the abutment pressure. The numerical simulation results demonstrate that the theoretical formula has an error of less than 9% and can meet the engineering application needs.

ENERGY SCIENCE & ENGINEERING (2023)

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Article

Numerical simulation study on measuring coal stress by drilling parameters

Yahua Zheng et al.

Arabian Journal of Geosciences (2021)

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Article Engineering, Multidisciplinary

A new monitoring-while-drilling method of large diameter drilling in underground coal mine and their application

Wenlong Zhang et al.

Summary: By using innovative Monitoring-While-Drilling (MWD) technology with microseismic (MS) system, vibration signals can be monitored to display the actual depth of Large Diameter Drilling (LDD) holes, reflect stress state, and evaluate pressure relief effects.

MEASUREMENT (2021)

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Article Engineering, Geological

Effective evaluation of pressure relief drilling for reducing rock bursts and its application in underground coal mines

Shichuan Zhang et al.

INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES (2019)

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Article Mining & Mineral Processing

Numerical simulation and analysis of drill rods vibration during roof bolt hole drilling in underground mines

Shaowei Liu et al.

INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY (2018)

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Article Engineering, Manufacturing

Modeling chip-evacuation forces in drilling for various flute geometries

JC Mellinger et al.

JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING-TRANSACTIONS OF THE ASME (2003)

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