☆ 4.6 Article

Deformation Control Technology of Gob-Side Entry Retaining with Large Volume CFST Roadway Side Support in Top-Coal Caving Longwall and Stability Analysis: A Case Study

APPLIED SCIENCES-BASEL (2023)

Related references

Note: Only part of the references are listed.

Article Mechanics

Nuclear magnetic resonance study on the influence of liquid nitrogen cold soaking on the pore structure of different coals

Shumin Liu et al.

Summary: Liquid nitrogen cold soaking is an innovative technology for stimulating coalbed methane, which can increase the permeability of coal seam by producing more fractures in the coal body. This study conducted nuclear magnetic resonance tests on coal samples treated with liquid nitrogen cold soaking and investigated its influence on the pore structures of coal. The results showed that liquid nitrogen cold soaking improved pore connectivity and increased the size and number of coal pore structures. The porosity and permeability of coal samples increased with the number of liquid nitrogen cold soaking cycles.

PHYSICS OF FLUIDS (2023)

Add to Collection

Article Engineering, Mechanical

Study on mechanical properties and deformation of coal specimens under different confining pressure and strain rate

Ye Li et al.

Summary: The influence of confining pressure and strain rate on the mechanical properties and deformation of coal was investigated through experimental research. The experimental results show that the strain rate mainly affects the peak and post-peak stages of stress-strain curves, and there is a positive correlation between peak strain and confining pressure. The numerical results are consistent with the change law of AE signals.

THEORETICAL AND APPLIED FRACTURE MECHANICS (2022)

Add to Collection

Article Energy & Fuels

Stress and deformation evolution characteristics of gob-side entry retained by the N00 mining method

Yajun Wang et al.

Summary: The N00 mining method introduces novel coal mining techniques that significantly differ from traditional methods. Under these new mining conditions, the surrounding rocks of the entry undergo eight different stress states and deformation stages, emphasizing the importance of timely support and roof cutting to ensure entry stability.

GEOMECHANICS AND GEOPHYSICS FOR GEO-ENERGY AND GEO-RESOURCES (2021)

Add to Collection

Article Engineering, Geological

Fracturing mechanisms and deformation characteristics of rock surrounding the gate during gob-side entry retention through roof pre-fracturing

Pengfei Guo et al.

Summary: This study analyzed the fracturing mechanism and deformation characteristics of the rock surrounding the gate through theoretical analysis and numerical simulations, focusing on the gate in the Halagou Coal Mine. A support design scheme was proposed and field test results showed positive outcomes in maintaining the stability of the gob-side entry.

INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES (2021)

Add to Collection

Article Mining & Mineral Processing

Physical model test and numerical simulation on the failure mechanism of the roadway in layered soft rocks

Xiaoming Sun et al.

Summary: The study revealed that layered soft rock roadways experience significant deformation after excavation, with two failure patterns: layer bending fracture and layer slipping. Deformation of supports was notably larger than that of the roof and floor when the roadway passed through different strata.

INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY (2021)

Add to Collection

Article Engineering, Mechanical

Experiment and numerical simulation on cracking behavior of marble containing double elliptic holes under uniaxial compression

Ye Li et al.

Summary: This study investigated the influence of dip angle on the strength, failure mode, crack initiation and propagation of marble specimens containing double elliptic holes under uniaxial compression. The results showed that as the dip angle increases, crack initiation loci transfer from the elliptic hole surface to the tip. The experimental and numerical simulation results displayed good agreement, with different stress states observed at measuring points in the marble specimens.

THEORETICAL AND APPLIED FRACTURE MECHANICS (2021)

Add to Collection

Article Mining & Mineral Processing

Prospects for the use of modern technological solutions in the flat-lying coal seams development, taking into account the danger of the formation of the places of its spontaneous combustion

Vladimir P. Zubov et al.

Summary: Spontaneous combustion of coal is a significant problem in coal mines, leading to methane and coal dust explosions as well as economic losses and injuries. Analysis shows that current prevention methods are not completely effective in ensuring safety.

JOURNAL OF MINING INSTITUTE (2021)

Add to Collection

Article Energy & Fuels

Failure characteristics of roof in working face end based on stress evolution of goaf

Guojun Zhang et al.

Summary: This study focused on the stress changes at the working face end in underground coal mining. By monitoring the stress recovery process in the goaf and using simulation means, it was found that the failure of the roof at the end of the goaf exhibited periodicity. This research is crucial for ensuring the safe and efficient exploitation of coal mining.

GEOMECHANICS AND GEOPHYSICS FOR GEO-ENERGY AND GEO-RESOURCES (2021)

Add to Collection

Article Energy & Fuels

Controlling the Deformation of a Small Coal Pillar Retaining Roadway by Non-Penetrating Directional Pre-Splitting Blasting with a Deep Hole: A Case Study in Wangzhuang Coal Mine

Shixing Cheng et al.

ENERGIES (2020)

Add to Collection

Article Engineering, Mechanical

Failure analysis and control mechanism of gob-side entry retention with a 1.7-m flexible-formwork concrete wall: A case study

Shengrong Xie et al.

ENGINEERING FAILURE ANALYSIS (2020)

Add to Collection

Article Construction & Building Technology

Size effect prediction on axial compression strength of circular CFST columns

Peng Chen et al.

JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH (2020)

Add to Collection

Article Construction & Building Technology

Stability analysis of integral load-bearing structure of surrounding rock of gob-side entry retention with flexible concrete formwork

Sheng-Rong Xie et al.

TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY (2020)

Add to Collection

Article Energy & Fuels

Study of An Innovative Approach of Roof Presplitting for Gob-Side Entry Retaining in Longwall Coal Mining

Xingyu Zhang et al.

ENERGIES (2019)

Add to Collection

Article Construction & Building Technology

Design principles and key technologies of gob side entry retaining by roof pre-fracturing

Jun Yang et al.

TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY (2019)

Add to Collection

Article Energy & Fuels

Application of concrete-filled steel tubular columns in gob-side entry retaining under thick and hard roof stratum: A case study

Wanpeng Huang et al.

ENERGY SCIENCE & ENGINEERING (2019)

Add to Collection

Article Engineering, Geological

Study of a no-pillar mining technique with automatically formed gob-side entry retaining for longwall mining in coal mines

Qi Wang et al.

INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES (2018)

Add to Collection

Article Metallurgy & Metallurgical Engineering

Surrounding rock control mechanism in the gob-side retaining entry in thin coal seams, and its application

J. Z. Li et al.

JOURNAL OF THE SOUTHERN AFRICAN INSTITUTE OF MINING AND METALLURGY (2018)

Add to Collection

Article Energy & Fuels

An Innovative Approach for Gob-Side Entry Retaining in Thick Coal Seam Longwall Mining

Manchao He et al.

ENERGIES (2017)

Add to Collection

Article Engineering, Geological

Adaptation assessment of gob-side entry retaining based on geological factors

Hongyun Yang et al.

ENGINEERING GEOLOGY (2016)

Add to Collection

Article Engineering, Geological

Bulking factors and extents of caved zones in weathered overburden of shallow abandoned underground workings

V. Palchik

INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES (2015)

Add to Collection

Article Engineering, Geological

Design and construction of entry retaining wall along a gob side under hard roof stratum

Y. L. Tan et al.

INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES (2015)

Add to Collection

Article Engineering, Geological

Roof Deformation, Failure Characteristics, and Preventive Techniques of Gob-Side Entry Driving Heading Adjacent to the Advancing Working Face

Jian-biao Bai et al.

ROCK MECHANICS AND ROCK ENGINEERING (2015)

Add to Collection

Article Engineering, Geological

Numerical Modeling for Yield Pillar Design: A Case Study

Wenfeng Li et al.

ROCK MECHANICS AND ROCK ENGINEERING (2015)

Add to Collection

Proceedings Paper Engineering, Multidisciplinary

Strength Assessments of Concrete-Filled Steel Tubular Support of Soft Rock Roadway

Guanglong Qu et al.

CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING, PTS 1-4 (2014)

Add to Collection

Article Mining & Mineral Processing

Spontaneous caving and gob-side entry retaining of thin seam with large inclined angle

Zhang Yongqin et al.

INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY (2014)

Add to Collection

© Peeref 2019-2024. All rights reserved.