NSTL国家科技图书文献中心

1. Modelling of particle flow code geotechnical material parameter relationships based on orthogonal design and back propagation neural network NSTL国家科技图书文献中心

Ni, Yaodong | Wang, Ruirui ... - 《Computational particle mechanics》 - 2025,12(1) - 371～398 - 共28页

摘要：The utilisation of particle* flow code to* | nature of the particle* action mechanism within the* | establish discrete element models represents an effective | approach for addressing the issue of discontinuous media | . This methodology has been employed by numerous

关键词： Discrete element method (DEM) | Particle flow code (PFC) | Orthogonal design | Back propagation (BP) Neural network

2. Numerical study on the strength and fracture of rock materials with multiple rough preexisting fissures under uniaxial compression using particle flow code NSTL国家科技图书文献中心

Wang, Min | Lu, Zhenxing ... - 《Computational particle mechanics》 - 2025,12(1) - 453～477 - 共25页

摘要：Preexisting fissures are common in rock mass | engineering, and these preexisting fissures can considerably | reduce the strength of rock masses and the stability of | rock mass engineering. Considering that the | preexisting fissures are not straight, a DEM numerical

关键词： Rough joints | Numerical simulation | JRC value | Peak strength

3. (109008)Effects of a single flaw on failure and acoustic emission characteristics around circular opening subjected to biaxial compression NSTL国家科技图书文献中心

Bing Liu | Yi Liu ... - 《Engineering failure analysis》 - 2025,167(Pt.A) - 1～27 - 共27页 - 被引量：1

摘要： experiments, and particle* flow code (PFC) software modeled* | Understanding the failure process in | surrounding rocks is essential for assessing the stability | of underground spaces and predicting potential | disasters. Although failure patterns around openings of

关键词： Underground opening | Flaws | Excavation damage zone | Acoustic emission | Particle Flow Code

4. Numerical simulation of landslide movement and impact disaster intensity on brick-concrete buildings: a case from Niuti landslide in Shaanxi, China NSTL国家科技图书文献中心

Chen, Xing | Wei, Jiangbo ... - 《Landslides》 - 2025,22(7) - 2363～2377 - 共15页

摘要： Particle Flow Code (PFC) method was employed to invert | A systematic evaluation of landslide movement | characteristics and its disaster-causing intensity is considered | of great significance for the quantitative | assessment of landslide risk. Along these lines, in this

关键词： Niuti landslide | Particle flow code method | Movement characteristics | Brick-concrete buildings | Impact intensity

5. Effect of prefabricated flaw angle on the mechanical properties and failure characteristics of stratified cemented tailings backfill NSTL国家科技图书文献中心

Chen, Shuaijun | Qin, Wenjing ... - 《Theoretical and Applied Fracture Mechanics》 - 2025,135 - 共13页

摘要： different flaw dip angles. Additionally, the Particle Flow | Code program was used to analyze the propagation of | The process of exposing stratified cemented | tailings backfill (SCTB) underground is prone to damage | due to blasting disturbances. To investigate the

关键词： Cemented tailings backfill | Stratified surfaces | Prefabricated flaw | Particle Flow Code | Failure characteristics

6. Investigation of Fatigue Mechanics and Crack Evolution Characteristics of Jointed Specimens Under Cyclic Uniaxial Compression NSTL国家科技图书文献中心

Miao Chen | Zihao Liu ... - 《Fatigue & Fracture of Engineering Materials & Structures》 - 2025,48(1) - 261～278 - 共18页 - 被引量：1

摘要：Nonpersistent joints are prevalent in | engineering rock masses and are sensitive to cyclic loads | induced by geological movements and engineering | disturbances. Therefore, studying the fatigue mechanisms of | rock masses with nonpersistent joints under cyclic

关键词： cyclic load | fatigue responses | nonpersistent jointed rock | particle flow code

7. Study on the microstructural evolution of gangue cemented backfill under uniaxial compression NSTL国家科技图书文献中心

Huang, Dongmei | Pan, Xin ... - 《Computational particle mechanics》 - 2025,12(1) - 557～571 - 共15页

摘要：In cemented paste backfill (CPB), the | connection mode and spatial position arrangement of | particles determine the deformation, structural strength | and stability of the backfill. Based on the scanning | electron microscope images of CPB, the representative

关键词： Cemented paste backfill | Digital image processing | Particle flow code method | Microscopic parameters

8. Co-Evolution of Specific Stiffness and Permeability of Rock Fractures Offset in Shear NSTL国家科技图书文献中心

He, Xinxin | Yu, Pengliang ... - 《Journal of geophysical research.Solid earth》 - 2025,130(5) - n/a～n/a - 共19页

摘要：Fractures and faults represent planes of | weakness and compliance in rock masses that serve as | focal points for both microearthquakes and fluid | transport, with seismicity and permeability evolution | closely linked. Contact stiffness is highly stress

关键词： rock fracture mechanics | discrete element method (DEM) | particle flow code 3D (PFC3D) | permeability | specific stiffness | cracks

9. Macroscopic and Mesoscopic Damage Characteristics and Energy Evolution Laws of Rock Mass With Double Arcuate Fractures Under Uniaxial Compression NSTL国家科技图书文献中心

Qingyang Ren | Senlin Gao ... - 《International journal for numerical and analytical methods in geomechanics》 - 2025,49(3) - 1038～1057 - 共20页

摘要： fissure red sandstone specimens. Then, particle flow | ABSTRACT In order to reveal the influence of | double arc‐shaped fissure dip angles on the macro‐micro | failure and energy evolution laws of rock masses, a | numerical model of red sandstone was firstly established

关键词： constitutive model | crack propagation | dissipative energy | double arc‐shaped fissure | particle flow code

10. Simulation of thermomechanical process in rock under high-voltage pulses NSTL国家科技图书文献中心

Zhao, Yong | Liu, Yi ... - 《Physica Scripta》 - 2025,100(6) - 共20页

摘要：Rock fragmentation by high-voltage pulsed | discharge (RHPD) has gained significant attention in | various engineering fields, yet the mechanism of rock | fracture induced by the instantaneous high temperature of | plasma remains insufficiently quantified. This study

摘要：The utilisation of particle* flow code to* | nature of the particle* action mechanism within the* | establish discrete element models represents an effective | approach for addressing the issue of discontinuous media | . This methodology has been employed by numerous

关键词： Discrete element method (DEM) | Particle flow code (PFC) | Orthogonal design | Back propagation (BP) Neural network

摘要：Preexisting fissures are common in rock mass | engineering, and these preexisting fissures can considerably | reduce the strength of rock masses and the stability of | rock mass engineering. Considering that the | preexisting fissures are not straight, a DEM numerical

关键词： Rough joints | Numerical simulation | JRC value | Peak strength

摘要： experiments, and particle* flow code (PFC) software modeled* | Understanding the failure process in | surrounding rocks is essential for assessing the stability | of underground spaces and predicting potential | disasters. Although failure patterns around openings of

关键词： Underground opening | Flaws | Excavation damage zone | Acoustic emission | Particle Flow Code

摘要： Particle Flow Code (PFC) method was employed to invert | A systematic evaluation of landslide movement | characteristics and its disaster-causing intensity is considered | of great significance for the quantitative | assessment of landslide risk. Along these lines, in this

关键词： Niuti landslide | Particle flow code method | Movement characteristics | Brick-concrete buildings | Impact intensity

摘要： different flaw dip angles. Additionally, the Particle Flow | Code program was used to analyze the propagation of | The process of exposing stratified cemented | tailings backfill (SCTB) underground is prone to damage | due to blasting disturbances. To investigate the

关键词： Cemented tailings backfill | Stratified surfaces | Prefabricated flaw | Particle Flow Code | Failure characteristics

摘要：Nonpersistent joints are prevalent in | engineering rock masses and are sensitive to cyclic loads | induced by geological movements and engineering | disturbances. Therefore, studying the fatigue mechanisms of | rock masses with nonpersistent joints under cyclic

关键词： cyclic load | fatigue responses | nonpersistent jointed rock | particle flow code

摘要：In cemented paste backfill (CPB), the | connection mode and spatial position arrangement of | particles determine the deformation, structural strength | and stability of the backfill. Based on the scanning | electron microscope images of CPB, the representative

关键词： Cemented paste backfill | Digital image processing | Particle flow code method | Microscopic parameters

摘要：Fractures and faults represent planes of | weakness and compliance in rock masses that serve as | focal points for both microearthquakes and fluid | transport, with seismicity and permeability evolution | closely linked. Contact stiffness is highly stress

关键词： rock fracture mechanics | discrete element method (DEM) | particle flow code 3D (PFC3D) | permeability | specific stiffness | cracks

摘要： fissure red sandstone specimens. Then, particle flow | ABSTRACT In order to reveal the influence of | double arc‐shaped fissure dip angles on the macro‐micro | failure and energy evolution laws of rock masses, a | numerical model of red sandstone was firstly established

关键词： constitutive model | crack propagation | dissipative energy | double arc‐shaped fissure | particle flow code

摘要：Rock fragmentation by high-voltage pulsed | discharge (RHPD) has gained significant attention in | various engineering fields, yet the mechanism of rock | fracture induced by the instantaneous high temperature of | plasma remains insufficiently quantified. This study

关键词： plasma | particle flow code | high-voltage pulses | rock fragmentation | thermomechanical process

4008-161-200 800-990-8900

国家科技图书文献中心

摘要：The utilisation of particle flow code to | nature of the particle action mechanism within the | establish discrete element models represents an effective | approach for addressing the issue of discontinuous media | . This methodology has been employed by numerous

关键词： Discrete element method (DEM) | Particle flow code (PFC) | Orthogonal design | Back propagation (BP) Neural network

摘要：Preexisting fissures are common in rock mass | engineering, and these preexisting fissures can considerably | reduce the strength of rock masses and the stability of | rock mass engineering. Considering that the | preexisting fissures are not straight, a DEM numerical

关键词： Rough joints | Numerical simulation | JRC value | Peak strength

摘要： experiments, and particle flow code (PFC) software modeled | Understanding the failure process in | surrounding rocks is essential for assessing the stability | of underground spaces and predicting potential | disasters. Although failure patterns around openings of

关键词： Underground opening | Flaws | Excavation damage zone | Acoustic emission | Particle Flow Code

摘要： Particle Flow Code (PFC) method was employed to invert | A systematic evaluation of landslide movement | characteristics and its disaster-causing intensity is considered | of great significance for the quantitative | assessment of landslide risk. Along these lines, in this

关键词： Niuti landslide | Particle flow code method | Movement characteristics | Brick-concrete buildings | Impact intensity

摘要： different flaw dip angles. Additionally, the Particle Flow | Code program was used to analyze the propagation of | The process of exposing stratified cemented | tailings backfill (SCTB) underground is prone to damage | due to blasting disturbances. To investigate the

关键词： Cemented tailings backfill | Stratified surfaces | Prefabricated flaw | Particle Flow Code | Failure characteristics

摘要：Nonpersistent joints are prevalent in | engineering rock masses and are sensitive to cyclic loads | induced by geological movements and engineering | disturbances. Therefore, studying the fatigue mechanisms of | rock masses with nonpersistent joints under cyclic

关键词： cyclic load | fatigue responses | nonpersistent jointed rock | particle flow code

摘要：In cemented paste backfill (CPB), the | connection mode and spatial position arrangement of | particles determine the deformation, structural strength | and stability of the backfill. Based on the scanning | electron microscope images of CPB, the representative

关键词： Cemented paste backfill | Digital image processing | Particle flow code method | Microscopic parameters

摘要：Fractures and faults represent planes of | weakness and compliance in rock masses that serve as | focal points for both microearthquakes and fluid | transport, with seismicity and permeability evolution | closely linked. Contact stiffness is highly stress

关键词： rock fracture mechanics | discrete element method (DEM) | particle flow code 3D (PFC3D) | permeability | specific stiffness | cracks

摘要： fissure red sandstone specimens. Then, particle flow | ABSTRACT In order to reveal the influence of | double arc‐shaped fissure dip angles on the macro‐micro | failure and energy evolution laws of rock masses, a | numerical model of red sandstone was firstly established

关键词： constitutive model | crack propagation | dissipative energy | double arc‐shaped fissure | particle flow code

摘要：Rock fragmentation by high-voltage pulsed | discharge (RHPD) has gained significant attention in | various engineering fields, yet the mechanism of rock | fracture induced by the instantaneous high temperature of | plasma remains insufficiently quantified. This study

关键词： plasma | particle flow code | high-voltage pulses | rock fragmentation | thermomechanical process

4008-161-200 800-990-8900

国家科技图书文献中心

摘要：The utilisation of particle* flow code to* | nature of the particle* action mechanism within the* | establish discrete element models represents an effective | approach for addressing the issue of discontinuous media | . This methodology has been employed by numerous

摘要： experiments, and particle* flow code (PFC) software modeled* | Understanding the failure process in | surrounding rocks is essential for assessing the stability | of underground spaces and predicting potential | disasters. Although failure patterns around openings of