Results 11 to 20 of about 112 (86)

A new technical pathway for extracting high accuracy surface deformation information in coal mining areas using UAV LiDAR data: An example from the Yushen mining area in western China

Measurement: Journal of the International Measurement Confederation, 2023
Fuquan Tang, Jingya Tang, Junlei Xue
exaly   +4 more sources

Thick-hard strata movement law and multi-dynamic load mechanism in longwall face with ultra-large cutting height [PDF]

Meitan xuebao
Large mining height technology is characterized by high yield, high efficiency, and high recovery rate. It has become the preferred technology for mining thick coal seams in Yushen mining area.
Jiachen WANG, Zhaohui WANG, Wenchao SUN, Meng LI, Xin ZHANG, Jialong LI, Dongxin HOU   +6 more
doaj   +2 more sources

Theory and Method of Time-varying Computational Experiments for the Fully Mechanized Mining Process in an Artificial System Environment

IEEE Access, 2019
As mining depth gradually increases, the complex and changeable behavior state of mine production systems leads to the increasingly prominent problem of “planning is difficult to control”.
Zhidong Feng, Shanshan Zhu, Jiang Wu, Hongbo Guo   +3 more
doaj   +3 more sources

Surface grouting and water plugging technology for inclined shaft in water-rich sandy soil

Meikuang Anquan
In order to effectively reduce the uneven settlement and destructive effect of water-rich sand-soil stratum structure on coal mine inclined shaft, taking the water gushing treatment of an auxiliary inclined shaft in the west of Yushen Mining Area as an ...
Kaixiang LIU, Xiang DING, Dangwen ZHOU, Haiyu HUANG, Xiaojing HUANG, Dongwei DUAN, Jie FENG, Long PANG   +7 more
doaj   +2 more sources

Multi-factor Contribution to the Height of Water-conducting Fracture Zone and Mine Zoning for Water Protection in Yushen Coalfield

Taiyuan Ligong Daxue xuebao, 2023
Predicting the Water-conducting fracture zone height (WFZH) and determining the mining zones that require water conservation operations are critical for the mine sustainability.
Shuai ZHANG, Guorui FENG, Dongsheng ZHANG, Wei YU   +3 more
doaj   +1 more source

Study on Deformation and Fracture Evolution of Underground Reservoir Coal Pillar Dam under Different Mining Conditions

Geofluids, Volume 2022, Issue 1, 2022., 2022
Coal mine underground reservoir water storage technology is an effective technical way to achieve high efficiency of coal mining and protection of water resources. The stability of coal pillar dam plays a decisive role in the safe and stable operation of underground reservoirs.
Liu Xuesheng, Song Shilin, Wu Baoyang, Li Xuebin, Yang Kang, Richeng Liu   +5 more
wiley   +1 more source

Study on Layered‐Backfill‐Based Water Protection Technology of Thick Coal Seam in the Ecologically Fragile Mining Area in Western China

Geofluids, Volume 2022, Issue 1, 2022., 2022
The mining areas in Western China are characterized by water shortage and ecological fragility, and the coal resources in these areas are extracted in a large‐scale and highly intensive manner, which is highly likely to induce ecological problems, such as soil erosion and grassland degradation.
Lei Zhu, Tianqi Song, Wenzhe Gu, Kai Xu, Zhicheng Liu, Fengqi Qiu, Xinfu Zhang, Yi Xue   +7 more
wiley   +1 more source

Optimization of staggered distance of coal pillars in multiseam mining: Theoretical analysis and numerical simulation

Energy Science &Engineering, Volume 9, Issue 3, Page 357-374, March 2021., 2021
A mechanical model of staggered distance mining was established. First, elastic and plastic slip line field theories were used to calculate the reasonable staggered distance expressions of multiseam mining. The staggered distance schemes of multiseam mining were optimized using the numerical simulation software FLAC3D.
Xueyang Sun, Mingjiao Lu, Cheng Li
wiley   +1 more source

Limit Drainage of Separated Tunnel Based on Ecological Groundwater Table: A Case Study

Advances in Civil Engineering, Volume 2021, Issue 1, 2021., 2021
After the excavation of the tunnel in water‐rich regions, the groundwater is continuously discharged into the tunnel. Excessive discharge will cause the groundwater table to drop, which will destroy the normal growth of vegetation and ecological balance.
Jianyou Yu, Shensheng Ge, Lingchao Hou, Yiteng Zhang, Yuzhu Liu, Yu Wu   +5 more
wiley   +1 more source

Probability Integral Method Parameter Determination by SBAS‐InSAR Technology and GWO Algorithm

Journal of Sensors, Volume 2021, Issue 1, 2021., 2021
This paper proposed a method based on the SBAS‐InSAR and gray wolf optimization algorithm aiming at the time‐consuming and laborious defects of the traditional method used to obtain the expected parameters of the probability integral method and the shortcomings of the InSAR technology in the field of large gradient deformation detection in the mining ...
Tieming Liu, Tongkang Zhang, Lichuan Chen, Weiming Liao, Yun Shi, Danchao Xu, Hyung-Sup Jung   +6 more
wiley   +1 more source