Qiang Zhang

China University of Mining and Technology

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Binsong Jiang

China University of Mining and Technology

Jixiong Zhang

China University of Mining and Technology

Hongying Wang

China Agricultural University

Mengmeng Lu

China University of Mining and Technology

Qiang Sun

Shanghai Maritime University

Meng Li

China University of Mining and Technology

Richeng Liu

China University of Mining and Technology

Hao Yan

China University of Mining and Technology

Hongwen Jing

China University of Mining and Technology

Bin-Song Jiang

Intelligent Health (United Kingdom)

Cooperative Institutions

China University of Mining and Technology

Central South University

Shenyang Jianzhu University

Sichuan University

Shandong University of Science and Technology

Liaoning Technical University

State Key Laboratory of Coal Resources and Safe Mining

Southwest Jiaotong University

Ministry of Education of the People's Republic of China

Chinese Academy of Sciences

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Analytical solutions for the mechanical behaviors of a hard roof subjected to any form of front abutment pressures

Tunnelling and Underground Space Technology (2018)

Qiang Zhang Chunhui Peng Richeng Liu Binsong Jiang Mengmeng Lu

Shear force

Abutment

Overburden

10.1016/j.tust.2018.12.004

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Citations (23)

Analytical solution of circular tunnel in elastic-viscoplastic rock mass

Figshare (2021)

Xiaofei Wang Binsong Jiang Qiang Zhang Mengmeng Lu Miao Chen

Abstract This paper deals with a deep circular tunnel excavated in infinite homogeneous and isotropic elasto-viscoplastic rock mass subjected to a hydrostatic initial stresses. The tunnel is divided into the initial plastic, viscoplastic, and elastic zones. By combining the generalized Bingham model with Mohr-Coulomb yield criteria, analytical solutions of the circular tunnel are derived with the consideration of non-associated flow rule and elasto-viscoplasticity. The initial plastic zone is defined as the instantaneous change of rock mass excavation. Based on the initial plastic zone, the stresses in viscoplastic zone are transferred to the deep surrounding rock with time due to the initial earth stresses. The results are compared with the elastic-brittle solution at static conditions, and the solutions of this paper are validated. Moreover, the presented results shows that the stress and displacement of the surrounding rock varies with time, and the solutions can be obtained at different instants of time.

Viscoplasticity

10.6084/m9.figshare.14325236

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Citations (0)

Experimental study of the mechanical behavior of sandstone affected by blasting

International Journal of Rock Mechanics and Mining Sciences (2017)

Liyuan Yu Haijian Su Hongwen Jing Qiang Zhang Erpeng Yang

10.1016/j.ijrmms.2017.02.002

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Citations (31)

Cavitation Modeling and the Hysteretic Behavior Investigation on Twin-Tube Hydraulic Adjustable Damper

Highlights in Science Engineering and Technology (2024)

Qiang Zhang Zhao Deng Feiran Zhang Ziyuan Guo

As a key component of automobile suspension, damper plays a decisive role in the performance of suspension. In order to improve the comfort and stability of vehicle, it is especially important to conduct further study on the performance of the damper. In this paper, the hysteretic behavior of twin-tube hydraulic adjustable damper (twin-tube HAD) widely used in the market is deeply studied. The modeling of the fluid cavitation mechanism and its effect on the damping output characteristics of the twin-tube HAD are analyzed. The process of cavitation in the twin-tube HAD is studied by studying the compressibility of the mixture and the structure of valve port. The results show that the generation of cavitation bubbles mainly come from complex valve system, the more complicated the structure of the valve port, the greater the possibility of cavitation. The volume of cavitation bubbles increases over time during the operation of the twin-tube HAD.

Suspension

10.54097/exbd3b58

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Citations (0)

Elasto-plastic solutions for expanding cavities in strain-hardening and/or softening soils

Tunnelling and Underground Space Technology (2020)

Qiang Zhang Wei He Hongying Wang Richeng Liu Mengmeng Lu

Strain hardening exponent

Cavity wall

Hardening (computing)

10.1016/j.tust.2020.103660

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Citations (2)

Experimental study on the compression properties of gangue by considering the effect of solutions with different pH

AIP conference proceedings (2021)

Jixiong Zhang Wenyue Qi Meng Li Qiang Zhang Qiang Sun

A type of complex aqueous solution was formed after water undergoing physical and chemical reactions with coal and rocks in mines, which penetrated into goaf through open fractures, thus influencing the bearing capacity and compression properties of broken gangue in goaf. To reveal the effect of solutions with different pH on the compression properties of gangue, the compression properties of gangue samples soaked in solutions were tested based on one-factor-at-a- time experimentation using a self-made compactor and a WAW-1000D electro-hydraulic servo-controlled universal testing machine. To do so, the effects of four factors (i.e. particle size distribution of gangue, pH of solution, solid-to-liquid ratio, and soaking time) on the compression properties of gangue samples were investigated. The changes in axial strain and porosity of gangue samples during compression as well as that of the particle size distribution before and after compression were analysed. The test results showed that the bearing capacity and compression properties of gangue soaked in solutions were degraded to some extent. The research provides an experimental basis for prediction and control of compression-induced deformation of gangue used for backfill under the effect of solutions with different pH.

Gangue

10.1063/5.0067694

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Elastoplastic Coupling Solution of Circular Openings in Strain-Softening Rock Mass Considering Pressure-Dependent Effect

International Journal of Geomechanics (2017)

Qiang Zhang Chuanhu Zhang Binsong Jiang Ning Li Yingchao Wang

Rock-like materials generally manifest both strain-softening and pressure-dependent effects. The critical plastic strain corresponding to the residual state also increases with the confining pressure. In this case, all of the mechanical property parameters are the functions of plastic strain and confining pressure. The elastoplastic coupling strain-softening model (EPCSS) is established by dividing the elastic and plastic surrounding rock of circular openings into m and n annuli, respectively. When the range of each annulus is significantly small, the surrounding rock can be considered as isotropic and uniform. Then, the elastoplastic coupling analytical solutions can be derived by representing the material properties of each annulus with the corresponding value at each annulus's outer radius for both Mohr–Coulomb (M-C) and Hoek–Brown (H-B) rock masses, respectively. Based on the continuum conditions of adjacent annuli, the equations for determining the radius of each annulus were established. Finally, the solutions were validated by strain-softening rock mass, and examples of EPCSS rock mass were further studied.

Annulus (botany)

Overburden pressure

10.1061/(asce)gm.1943-5622.0001043

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Citations (60)

Disaster-causing mechanism of extremely thick igneous rock induced by mining and prevention method by backfill mining

European Journal of Environmental and Civil engineering (2017)

Jixiong Zhang Hao Yan Qiang Zhang Baiyi Li Sheng Zhang

To mine coal resources under extremely thick igneous rock safely, this paper analysed the disaster-causing mechanism of extremely thick igneous rock by the methods of theoretical analysis, physical simulation, and numerical simulation, which was based on the engineering condition of Panel No.104 in Yangliu Coal Mine. The movement laws of overlying strata were obtained through analysing fracture development and rock breaking under extremely thick igneous rock after mining. The breaking interval of extremely thick igneous rock overlying working face that has one side adjacent to goaf area was derived by establishing and calculating a thin elastic plate mechanical model with three fixed sides and one simply supported side. The research shows that the trigger for dynamic disasters under extremely thick igneous rock is the coupling process of stress field and fracture field. After breaking of igneous rock, the fracture field, flow field and gas concentration field coupled, resulting in dynamical gas disaster; energy field, impact field and stress field coupled, resulting in rock burst. From the perspective of controlling the stress field and fracture field development, backfill mining method is proposed to prevent extremely thick igneous rock from sudden breaking.

Rock burst

Stress field

10.1080/19648189.2017.1381175

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Citations (11)

A numerical large strain solution for circular tunnels excavated in strain-softening rock masses

Computers and Geotechnics (2019)

Qiang Zhang Hongying Wang Yujing Jiang Mengmeng Lu Bin-Song Jiang

Shear modulus

Strain (injury)

10.1016/j.compgeo.2019.103142

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Citations (50)

Development of Coal Reaming Stress Analysis and Cutting Simulation System Based on VB

Advanced materials research (2012)

Qiang Zhang Peng Zhang Guo Xin Wang

Based on VB platform, a stress redistribution and cutting simulation system of enlarging the hole of coal and rock is developed by using the computer technology, finite element analysis, the second development, combining with structure parameter selection and Object-Oriented Programming method as well as using VB to encapsulate ANSYS and writing APDL command to call the ANSYS calculation program. The soft provides a convenient parameters input and graphical interface, and has completed the preprocessor simulation solving of the model and analysis of the results. Even not capable of mastering the finite element theory and FEA soft, users can use the system to perform the stress analysis and simulation when enlarging the hole of coal and rock easily.

Secondary development

Interface (matter)

10.4028/www.scientific.net/amr.510.549

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Citations (0)