Results 71 to 80 of about 267 (157)

Study on the Stability of aquiclude in the Close-Distance Coal Seams Repeated Mining in the Jurassic Coalfield of Northern Shaanxi

Advances in Computer and Materials Scienc Research
The aquifer in the Salawusu Formation is extensively distributed within the Jurassic coalfield of northern Shaanxi, China. However, the fracture development in overlying strata induced by repeated mining of close-distance coal seams and the stability of the aquiclude remain unclear.
Jian Cao, Xinyang Niu, Xiangye Wu, Liang Li, Xuwei Mao   +4 more
openaire   +1 more source

Water filling intensity assessment of a coal seam roof in the Dahaize Coal Mine, northern Ordos Basin

Meitian dizhi yu kantan
BackgroundAssessing water filling intensity in coal seam floors lays a foundation for the prevention and control of water hazards in mines. However, in the Jurassic coalfield in the northern Ordos Basin, complex hydrogeological structures and sedimentary
Xi LIU, Xiang DING, Haiyu HUANG, Zhaoyang LI, Zhe LI, Sheng ZHENG   +5 more
doaj   +1 more source

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

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   +1 more source

Risk assessment of water loss in deep coal seam mining in Jurassic coalfield in Shaanxi and Inner Mongolia contiguous area

Meikuang Anquan, 2023
This paper takes Taigemiao Mining Area in the middle and upper reaches of the Yellow River Basin as the research object, analyzes the relationship between the spatial structure of water-bearing（ｉｓｏｌａｔｅｄ） layer and the development height of water flowing fractured zone, excavates the main control factors affecting the water loss of aquifer in the study ...
SHANG Hongbo, ZHAO Chunhu, YU Bo, XUE Jiankun, LIU Ji   +4 more
openaire   +1 more source

Significant enrichment of Ga, Rb, Cs, REEs and Y in the Jurassic No. 6 coal in the Iqe Coalfield, northern Qaidam Basin, China—A hidden gem

Ore Geology Reviews, 2017
Abstract This paper presents new data concerning the mineralogy and trace element geochemistry of the enriched rare metals in the Jurassic No. 6 coal from the Iqe Coalfield, Qaidam Basin, China. The conclusions of this study are based on new data and evidence that suggest the considerable enrichment of Ga-Rb-Cs-REEs and Y in the No. 6 coal of the Iqe
Cunliang Zhao, Bangjun Liu, Lin Xiao, Yanheng Li, Shiming Liu, Zhongsheng Li, Bin Zhao, Jialiang Ma, Guangchen Chu, Pengpeng Gao, Yuzhuang Sun   +10 more
openaire   +1 more source

A new risk prediction method for water inrush from high-position separated layers in mine areas of Jurassic coal field

Meitan kexue jishu
Water inrush from high-position separation layers in the Jurassic coal field represents a novel type of hydraulic disaster, inflicting substantial damage upon coal mines.
Qingju Qin, Mengnan Liu, Yingquan Kong, Yu Zhou, Wenwu Liu, Changmin Han, Wei Qiao   +6 more
doaj   +1 more source

Geochemical characteristics and paleoenvironmental significance of the Xishanyao Formation coal in the eastern Junggar Basin

Meitan kexue jishu
The Junggar Basin is an important coal-bearing basin in northwestern China. The coalfield in the east of the Junggar basin is an important part of the large Xinjiang coal base, and contains rich coal resources.
Xiaotao XU, Shuzheng NING, Jie SUN, Huayao WANG, Baowan LI, Jianqiang ZHANG, Lian DING   +6 more
doaj   +1 more source

Research on the prediction of the height of water-conducting fissure zones in a Jurassic coalfield based on AdaBoost-WOA-BPNN

Abstract Understanding the laws behind the development of water-conducting fissure zones in the Huanglong Jurassic coalfield and accurately predicting the height of these water-conducting fissures are crucial to prevent and control the water damage in the overlying thick sandstone aquifer of the Luohe Formation.
Enke Hou, Meng Bi, Tianwen Long, Xiaoshen Xie, Pengfei Hou, Qianlong Li   +5 more
openaire   +1 more source

The Hydrogeochemical Characteristics and Formation Mechanisms of the High-Salinity Groundwater in Yuheng Mining Area of the Jurassic Coalfield, Northern Shaanxi, China

Water
In the Yuheng mining area (Jurassic coalfield, northern Shaanxi, China), the Yan’an Formation groundwater is characterized by elevated salinity, posing challenges for mine water pollution control and regional water resource management. However, the spatial distribution patterns and formation mechanisms of this high-salinity groundwater remain poorly ...
Han, Yuanhong, Zhao, Hongchao, Ji, Yongtao, Wang, Yue, Zhang, Liwei   +4 more
openaire   +1 more source

Prediction of water inrush risk in Jurassic Baotashan sandstone and teachnology of by limited boundary drainage

Meitan kexue jishu
The first and currently only Jurassic coal seam mining floor Baotashan sandstone water inrush and well flooding accident occurred in the New Shanghai No. 1 Coal Mine in Shanghai Miao Mining Area, Inner Mongolia.
Wei QIAO, Yuguang LYU, Gang HAN, Guangyao LIU, Wenbin LYU, Peichao FENG, Weichi CHEN, Zhen WANG   +7 more
doaj   +1 more source