Results 41 to 50 of about 597,919 (179)

Dynamic geo‐hydrogeological monitoring‐driven situational awareness for real‐time floor water inrush risk prediction in deep mining

Deep Underground Science and Engineering, EarlyView.
The fused data extracted from the distributed monitoring system as the data basis, combined with dynamic geological data, are imported into a deep learning model. As the geological conditions of mining and excavation change, the risk of water inrush at the working face is retrieved in real time.
Yongjie Li, Huiyong Yin, Fangying Dong, Tao Wu, Chao Zhang   +4 more
wiley   +1 more source

Roadway Lighting and Safety: Phase II – Monitoring Quality, Durability and Efficiency, November 2011 [PDF]

, 2011
This Phase II project follows a previous project titled Strategies to Address Nighttime Crashes at Rural, Unsignalized Intersections. Based on the results of the previous study, the Iowa Highway Research Board (IHRB) indicated interest in pursuing ...

core  

Roadway deformation with different staggered distance.

, 2018
Roadway deformation with different staggered distance.
Hualin Bai (6000500), Xinqiu Fang (4921300), Minfu Liang (5332850), Xiukun Hu (4921294), Gang Wu (23885)   +4 more
core   +1 more source

Study on roof deformation mechanism and control technology of cross-fault roof cutting and pressure relief self-forming roadway

Meitan kexue jishu
Aiming at the problem that roof deformation of cross fault roof cutting and pressure relief self-formed roadway is large and difficult to support, the mechanism of roof deformation of self-formed roadway in cross fault roof cutting and pressure-relieving
Zhibiao GUO, Yuanxin ZHAO, Dongshan YANG, Jingwei GAO, Songyang YIN, Xiaohui KUAI   +5 more
doaj   +1 more source

Upper bound limit analysis of coral reef limestone cavern roof stability incorporating a tension‐shear failure mechanism with tensile‐strength cut‐off

Deep Underground Science and Engineering, EarlyView.
For the roof of coral reef limestone caverns, a novel tension‐shear composite failure mechanism was developed. The most critical tensile crack model was identified using a hybrid optimization algorithm, and the stability of the cavern roof was analyzed accordingly.
Dongsheng Xu, Chenxu Li, Chuantan Hou
wiley   +1 more source

Deformation situation of roadway in panel 25301.

, 2018
Deformation situation of roadway in panel 25301.
Hualin Bai (6000500), Xinqiu Fang (4921300), Minfu Liang (5332850), Xiukun Hu (4921294), Gang Wu (23885)   +4 more
core   +1 more source

Asymmetric Deformation Mechanism and Control Technology in Deep Roadway

, 2020
In view of the phenomenon of asymmetric deformation and failure after deep rock roadway excavation and support, the causes of deformation and failure and support control were analyzed by means of mechanical theory analysis and computer numerical ...
XIN Guangming, YUAN Qi, ZHENG Yongsheng, XING Wenbin, ZHAO Nannan
core   +1 more source

Study on deformation and instability characteristics and control technology of deep soft rock roadway with strong mining

SN Applied Sciences, 2023
With the development of deep mining of coal resources, the problem of deep roadway management is becoming increasingly prominent. This study aims to analyze the deformation and failure mechanism of deep-buried soft rock roadway under the influence of ...
Jian Li, Yongle Li, Zhengzheng Xie, Nong Zhang, Feng Guo, Qinghua Chen, Sijia Liu   +6 more
doaj   +1 more source

Stability analysis of roadway surrounding rock with weak interlayer under dynamic and static loads

Meikuang Anquan, 2022
To study the deformation and failure law of roadway surrounding rock with weak interlayer under dynamic and static loads, taking the deep transportation roadway of Longfeng Coal Mine as the research object, the mechanical deformation characteristics of ...
LAN Hong, ZHENG Lulin, CHEN Qinggang, LIN Jianyun, QIU Qing, ZHAO Yu, TIAN Youwen   +6 more
doaj   +1 more source

Investigation on the failure evolution characteristics of surrounding rock in deep cross‐fault roadway: Based on physical model test and numerical simulation

Deep Underground Science and Engineering, EarlyView.
This study reveals the failure evolution characteristics of deep cross‐fault roadway surrounding rock under excavation support and periodic weighting. Periodic weighting readily induces fault activation, with the spatial distribution of failed rock masses being controlled by the fault strike and dip.
Tiezhu Li, Suping Peng, Jing Zheng, Zhanhua Yang, Qijun Tian   +4 more
wiley   +1 more source