Comparative analysis on mining-induced stress between in-situ observation and numerical simulation in deep mining

2010 ◽  
pp. 549-554
Author(s):  
Yang Ke ◽  
Xie Guang-Xiang ◽  
Chang Jucai
Keyword(s):  
Numerical Simulation ◽  
Comparative Analysis ◽  
In Situ Observation ◽  
Deep Mining ◽  
Induced Stress

In Situ Observations of Stresses in Al Interconnect Line by Synchrotron Radiation under Thermal/Electrical Conditions

2014 ◽  
Vol 905 ◽  
pp. 88-91
Author(s):  
Hou Kui Fu ◽  
De Bo Lu ◽  
Zi Guo Li
Keyword(s):  
Synchrotron Radiation ◽  
Current Density ◽  
In Situ Observation ◽  
X Ray Diffraction ◽  
X Ray ◽  
Self Heating ◽  
Induced Stress ◽  
Current Densities ◽  
Simulation Results

In-situ observation of stress in Al interconnects under electromigration and thermal effect by using the synchrotron radiation x-ray diffraction. The test temperature was controlled by changing the current density of W (self-heating structure). The EM-induced stress was also investigated with current densities from 3x105A/cm2 to 4x106A/cm2.The conclusion agreed well with the simulation results.

In situ observation of cell-detachment process initiated by femtosecond laser-induced stress wave

2010 ◽  
Vol 101 (1) ◽  
pp. 127-131 ◽  
Author(s):  
Yasuyo Maezawa ◽  
Yoichiroh Hosokawa ◽  
Kazunori Okano ◽  
Mie Matsubara ◽  
Hiroshi Masuhara
Keyword(s):  
Femtosecond Laser ◽  
Stress Wave ◽  
In Situ Observation ◽  
Cell Detachment ◽  
Induced Stress

Study on Solidification Cracking of Laser Dissimilar Welded Joints by using in-Situ Observation and Numerical Simulation

2010 ◽  
Vol 54 (9-10) ◽  
pp. R257-R266 ◽  
Author(s):  
Peng Wen ◽  
Motomichi Yamamoto ◽  
Yasutaka Senda ◽  
Tomoko Tamura ◽  
Kenji Shinozaki
Keyword(s):  
Numerical Simulation ◽  
Welded Joints ◽  
Solidification Cracking ◽  
In Situ Observation

scholarly journals Research on Surrounding Rock Control Technology of Dongbaowei Deep Mining Roadway

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Chengjia Wu ◽  
Tao Qin ◽  
Lei Wang ◽  
Zhi Liu
Keyword(s):  
Numerical Simulation ◽  
Comparative Analysis ◽  
Coal Mine ◽  
Laboratory Experiments ◽  
Stability Control ◽  
Surrounding Rock ◽  
Good Effect ◽  
Control Plan ◽  
Deep Mining ◽  
Industrial Experiments

In order to explore the stability control of surrounding rock in the process of deep mining, comparative analysis of stress, deformation, and fracture characteristics of surrounding rock of deep and shallow mining roadway in dongbaotou coal mine, laboratory experiments, field measurement, numerical simulation, and field industrial experiments were adopted to put forward the control plan of the surrounding rock in deep roadway, which were verified by field industrial experiments. The results of laboratory experiments and field experiments show that the mechanical properties of deep roadway surrounding rock of Dongbaowei Coal Mine are significantly lower than those of the shadow roadway, mainly due to the development of joints and fractures of the overlying strata in the deep stope, serious impact on the disturbance of the roadway which has been made by the strong pressure of the stope, and reduced crushing strength of surrounding rock. Through comparative analysis of deep roadway support plan carried out by numerical simulation, the support scheme suitable for Dongbaowei Coal Mine is put forward, which is applied in the field. Field industrial experiments show that after the optimization of support parameters, the deformation of surrounding rock of roadway is well controlled. The displacement of surrounding rock of roadway is basically stable after 10∼15 days. The support of surrounding rock of roadway has good effect, which achieves the goal of stability control of deep roadway surrounding rock.

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