Results 11 to 20 of about 186 (125)

Geological technological innovations and contributions in the exploration and development of the Shenfu coalfield [PDF]

Meitian dizhi yu kantan
BackgroundThe discovery and exploration of the Shenfu coalfield (i.e., a Jurassic coalfield in northern Shaanxi Province) represent the most significant achievement in China’s coal industry during the 6th Five-Year Plan of the country, marking the onset ...
Limin FAN
doaj   +3 more sources

Hydrogeochemical processes of groundwater system and its mining-motivated effect in mining areas of Western China [PDF]

Meitan xuebao
The exploitation of coal resources will destroy the aquifer structure, disturb the groundwater system and produce a new water cycle model. As the focus of coal supply and production, the western mining area is short of water resources and fragile in ...
Aoshuang MEI, Yifan ZENG, Qiang WU, Zhichao LIU, Yanping MIAO, Sitong WANG, Yashuai CUI, Huaming WEI, Shuaifeng REN, Lei YANG   +9 more
doaj   +3 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   +3 more sources

Real-world study of adverse events associated with gepant use in migraine treatment based on the VigiAccess and U.S. Food and Drug Administration's adverse event reporting system databases. [PDF]

Front Pharmacol
BackgroundThis study aimed to investigate the real-world profile of adverse events (AEs) associated with gepant medications in the clinical treatment of migraines by analyzing data collected from the VigiAccess database and the U.S.
Liang Q, Liao X, Wu H, Huang Y, Liang T, Li H.   +5 more
europepmc   +3 more sources

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

Quantitative characterization of the disturbance of groundwater system in typical coal seam mining in contiguous area of Inner Mongolia and Shaanxi [PDF]

, 2023
High-intensity mining of coal mines in ecologically fragile areas disturbs the groundwater system and causes water resources loss. The typical shallow and deep mining mines in the middle section of the Yellow River basin are selected as the research ...
Chunhu ZHAO, Hao WANG, Hongbo SHANG, Jian YANG, Jiankun XUE, Longfei FENG, Tiantian WANG, Yu CAO, Yutong WANG, Zhenfang ZHOU   +9 more
core   +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