Linming Dou

China University of Mining and Technology

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Wu Cai

China University of Mining and Technology

Siyuan Gong

Dalian University of Technology

Anye Cao

China University of Mining and Technology

Zhenlei Li

University of Science and Technology Beijing

Jinrong Cao

China University of Mining and Technology

Guifeng Wang

China University of Mining and Technology

Jiang He

Meizu (China)

Cai‐Ping Lu

China University of Mining and Technology

Jinzheng Bai

China University of Mining and Technology

Xuwei Li

Ministry of Ecology and Environment

Cooperative Institutions

China University of Mining and Technology

169

Chinese Academy of Sciences

GSI Helmholtz Centre for Heavy Ion Research

RELX Group (Netherlands)

University of Chinese Academy of Sciences

Helmholtz Institute Jena

Central South University

Anhui University of Science and Technology

Friedrich Schiller University Jena

Nanjing University

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Mechanical Initiation and Propagation Mechanism of a Thrust Fault: A Case Study of the Yima Section of the Xiashi-Yima Thrust (North Side of the Eastern Qinling Orogen, China)

Rock Mechanics and Rock Engineering (2014)

Wu Cai Linming Dou Zhenlei Li Jiang He Hu He

Thrust fault

Stress field

10.1007/s00603-014-0666-x

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Citations (28)

Analytical stress solution and mechanical properties for rock mass containing a hole with complex shape

Theoretical and Applied Fracture Mechanics (2021)

Lihai Tan Ting Ren Linming Dou Xiaohan Yang Ming Qiao

Plane stress

10.1016/j.tafmec.2021.103002

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Citations (64)

Mechanism of rock burst caused by fracture of key strata during irregular working face mining and its prevention methods

International Journal of Mining Science and Technology (2018)

Zeng-qiang Yang Chang Liu Hengzhong Zhu Fuxiang Xie Linming Dou

To study the occurrence mechanism of rock burst during mining the irregular working face, the study took irregular panel 7447 near fault tectonic as an engineering background. The spatial fracture characteristic of overlying strata was analyzed by Winkler elastic foundation beam theory. Furthermore, the influence law of panel width to suspended width and limit breaking span of key strata were also analyzed by thin plate theory. Through micro-seismic monitoring, theoretical analysis, numerical simulation and working resistance of support of field measurement, this study investigated the fracture characteristic of overlying strata and mechanism of rock burst in irregular working face. The results show that the fracture characteristic of overlying strata shows a spatial trapezoid structure, with the main roof being as an undersurface. The fracture form changes from vertical "O-X" type to transverse "O-X" type with the increase of trapezoidal height. From the narrow mining face to the wide mining face, the suspended width of key strata is greater than its limit breaking width, and a strong dynamic load is produced by the fracture of key strata. The numerical simulation and micro-seismic monitoring results show that the initial fracture position of key strata is close to tailgate 7447. Also there is a high static load caused by fault tectonic. The dynamic and static combined load induce rock burst. Accordingly, a cooperative control technology was proposed, which can weaken dynamic load by hard roof directional hydraulic fracture and enhance surrounding rock by supporting system.

Rock burst

Foundation (evidence)

10.1016/j.ijmst.2018.07.005

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Citations (73)

Monitoring the rock activity around a tunnel with AE

Applied Acoustics (2002)

Linming Dou

Acoustic Emission

Electromagnetic pulse

Tunnel Construction

SIGNAL (programming language)

Source

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Citations (1)

Failure mechanism and control of the coal bursts triggered by mining-induced seismicity: a case study

Environmental Earth Sciences (2023)

Jinrong Cao Linming Dou Heinz Konietzky Kunyou Zhou Min Zhang

Failure mechanism

Stress field

10.1007/s12665-023-10856-9

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Citations (15)

Mechanism of Coal Bursts Induced by Horizontal Section Mining of Steeply Inclined Coal Seams and Application of Microseismic Multiparameter Monitoring in Early Warning

Advances in Civil Engineering (2020)

Sheng-Chuan Wang Linming Dou Zhengyi Wang Jinzheng Bai Yanjiang Chai

Coal bursts occurring in steeply inclined coal seams (SICSs) are increasingly severe. To solve this problem, a mechanical model for the distribution of static stress on coal‐rock masses along panels and the distribution of dynamic load induced by the breakage of thick and hard roofs with propagation distance was established. The stress characteristics after a superposition of dynamic and static loads on the roof and floor roadways ( R r and R f ) were determined. In addition, precursory information characteristics and index sensitivities of four indices for dynamic loads and the CT index for static loads based on seismic tomography were separately analyzed. The monitoring and warning indices for SICSs and flat seams were compared. The results showed that the static stress of R r was significantly higher than that of R f , which provided a basis for the stress‐triggering coal burst behaviors. Three indices for dynamic loads and seismic tomography results exhibited remarkable precursory information and high sensitivity. However, the performance of lack of shock index is poor. The continuous anomaly and the contradiction of indices at R r and R f can be considered as precursory information for predicting coal bursts.

Microseism

Breakage

10.1155/2020/1048624

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Citations (9)

Mechanism of the coal bursts in the working face during mining of steeply inclined and extra thick coal seam

Geomatics Natural Hazards and Risk (2023)

Jinrong Cao Linming Dou Jiang He Jiahao Xie Zepeng Han

Coal bursts caused by mining-induced seismicity occur in the working face in steeply inclined and extra thick coal seams (SIETCSs). This article presents a case study in SIETCS through discrete element simulation as well as field investigation. The evolution of the coal burst was studied from the perspective of stress distribution, crack propagation and coal fragment ejection. The results showed that dynamic failure mainly occurred in the coal near the roof. The deep bottom coal and the top coal near the roof are under high static stress due to the clamping effect of the roof and floor and the rotation of the deep roof. The coal burst in the working face was triggered by mining-induced seismicity. The coal burst occurred when the sum of the static stress and the dynamic stress caused by the mining-induced seismicity exceeds the sum of the ultimate strength of the coal and the support strength, which was called the 'clamping-rotation-dynamic loads' mechanism. During the coal burst, the cracks developed rapidly into the deep bottom coal and the top coal on the roof side. The results can serve as an important reference for the coal burst failure mechanism in the working face in SIETCSs.

Stress field

10.1080/19475705.2023.2206511

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Citations (8)

STUDY OF ENERGY TRANSFER ON PENDULUM-TYPE WAVES PROPAGATION IN BLOCK-ROCK MASS

MINING INFORMATIONAL AND ANALYTICAL BULLETIN (2017)

Kaixing WANG Pan Yi-shan Linming Dou

Pendulum

10.25018/0236-1493-2017-10-23-255-257

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Citations (0)

Contents

Gastrointestinal Endoscopy (2019)

Joseph D. Feuerstein Stefan Rakowsky Lindsey Sattler Anshul Yadav Joshua Foromera

10.1016/s0016-5107(19)31969-8

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Using Elastic Wave Velocity Anomaly to Predict Rockburst Hazard in Coal Mines

Archives of Mining Sciences (2023)

Kunyou Zhou Piotr Małkowski Linming Dou Ke Yang Yanjiang Chai

Using Elastic WavE vElocity anomaly to PrEdict rockbUrst Hazard in coal minEsFor the prevention and control of rockburst in underground coal mines, a detailed assessment of a rockburst hazard area is crucial. in this study, the dependence between stress and elastic wave velocity of axially-loaded coal and rock samples was tested in a laboratory.The results show that P-wave velocity in coal and rock is positively related to axial stress and can be expressed by a power function.The relationship showed that high stress and a potential rockburst area in coal mines can be determined by the elastic wave velocity anomaly assessment with passive seismic velocity tomography.The principle and implementation procedure of passive seismic velocity tomography for elastic wave velocity were introduced, and the assessment model of rockburst hazard using elastic wave velocity anomaly was built.A case study of a deep longwall panel affected by rockbursts was introduced to demonstrate the effectiveness of tomography.The rockburst prediction results by passive velocity tomography closely match the dynamic phenomenon in the field, which indicates the feasibility of elastic wave velocity anomaly for rockburst hazard prediction in coal mines.

Anomaly (physics)

10.24425/ams.2023.144322

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Citations (4)