Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Lulin Zheng"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-17 (2024)
Abstract The hydrogeological conditions of the Qianbei coalfield are complex, and karst water in the roof rock frequently disrupts mining operations, leading to frequent water inrush incidents. Taking the representative Longfeng Coal Mine as a case s
Externí odkaz:
https://doaj.org/article/9a1186850e0a420297fe67328f1cf58b
Publikováno v:
Meikuang Anquan, Vol 55, Iss 4, Pp 187-196 (2024)
In order to solve the problem of roof water inrush risk during the mining of No. 9 coal seam in Longfeng Coal Mine, an LDA-RBF neural network model for predicting the development height of water-conduction fracture zone was constructed by linear disc
Externí odkaz:
https://doaj.org/article/fb7c26e5e8c04a8ebed4fe78d47346da
Autor:
Ziqi Liu, Lulin Zheng, Yujun Zuo, Hao Liu, Yuanjiang Hou, Zehua Zhu, Zhibin Hao, Xiaokun Wang, Gang Huang
Publikováno v:
Geomechanics and Geophysics for Geo-Energy and Geo-Resources, Vol 10, Iss 1, Pp 1-16 (2024)
Abstract The presence of random joints, cracks, and other defects significantly affects the meso-damage mechanism and macro-mechanical behavior of the rock. This study employed micro-CT scanning, digital image processing (DIP), and the rock failure p
Externí odkaz:
https://doaj.org/article/588ed79eff0c482eb112f6ab7bfeb406
Research on Macro-Micro Failure Mechanism of Interbedded Sandstone in the Deep of Lannigou Gold Mine
Publikováno v:
Lithosphere, Vol 2022, Iss Special 10 (2022)
AbstractThe surrounding rock of the Lannigou gold mine roadway is mainly sandstone, most of which contains thin interlayers of argillaceous and carbonaceous minerals. To explore the deformation and failure mechanism of interbedded sandstones under st
Externí odkaz:
https://doaj.org/article/f04414d6a89b44a495561dd5fd501c0b
Publikováno v:
Geofluids, Vol 2022 (2022)
Due to the transfer of Lannigou gold mining from shallow to deep, a series of stability problems of surrounding rock have been caused. The drilling pressure relief technology has unique advantages in the control of mine pressure in high-stress roadwa
Externí odkaz:
https://doaj.org/article/f3e0e495139242d2a72348c2f0b87892
Publikováno v:
Advances in Materials Science and Engineering, Vol 2022 (2022)
Crack inclination and material heterogeneity have important effects on the meso-mechanical mechanism and macroscopic mechanical behavior of rock-like materials. In order to study the failure characteristics of shotcrete body during the process of usi
Externí odkaz:
https://doaj.org/article/9682cc631c5b4b8b8f0ed78f248bac97
Autor:
Weifang Song, Pan Wu, Jianzhong Liu, Junhai Li, Zepeng Wang, Qinping Tan, Zhuojun Xie, Lulin Zheng
Publikováno v:
Minerals, Vol 12, Iss 7, p 806 (2022)
The Yunnan–Guizhou–Guangxi district (also known as the Dian–Qian–Gui “Golden Triangle”) in southwestern China contains numerous Carlin-type Au deposits (CTGDs). However, the sources of Au and Au-bearing fluids in these deposits remain con
Externí odkaz:
https://doaj.org/article/2900abac5e1f433c82ea212d2d8cad92
Autor:
Lujing Zheng, Lulin Zheng, Yujun Zuo, Hao Liu, Bin Chen, Zhonghu Wu, Wenjibin Sun, Yingle Wang
Publikováno v:
Advances in Materials Science and Engineering, Vol 2021 (2021)
To study the mesoscale damage evolution law of irregular sandstone particles, based on RFPA2D and digital image processing technology, a real mesostructure numerical model of irregular sandstone particles is established to simulate the breakage proce
Externí odkaz:
https://doaj.org/article/f1b415b3a3204bda8f16cfd50b54e0d7
Autor:
Hao Liu, Lulin Zheng, Yujun Zuo, Zhonghu Wu, Wenjibin Sun, Lujing Zheng, Chao Pan, Jianyun Lin, Zehua Zhu, Zhibin Hao
Publikováno v:
Shock and Vibration, Vol 2021 (2021)
The different directions of joints in rock will lead to great differences in damage evolution characteristics. This study utilizes DIP (digital image processing) technology for characterizing the mesostructure of sandstone and combines DIP technology
Externí odkaz:
https://doaj.org/article/3b926922a377401c9a56033d5b902742
Publikováno v:
Minerals, Vol 9, Iss 7, p 399 (2019)
The Nibao gold deposit, which includes both fault-controlled and strata-bound gold orebodies, constitutes an important part of the Yunnan−Guizhou−Guangxi “Golden Triangle” region. Defining the mineralization age of these gold orebodies may pr
Externí odkaz:
https://doaj.org/article/d35b4335e43b43a3a2229d148078b73e