Using numerical simulation for the prediction of mine dewatering from a karst water system underlying the coal seam in the Yuxian Basin, Northern China

2018 ◽  
Vol 77 (5) ◽  
Author(s):  
Wenping Mu ◽  
Qiang Wu ◽  
Yuan Xing ◽  
Cheng Qian ◽  
Yang Wang ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Coal Seam ◽  
Water System ◽  
Northern China ◽  
Karst Water ◽  
Mine Dewatering

Sources and pollution path identification of PAHs in karst aquifers: an example from Liulin karst water system, northern China

2021 ◽  
Vol 241 ◽  
pp. 103810
Author(s):  
Xiao Wu ◽  
Xubo Gao ◽  
Ting Tan ◽  
Chengcheng Li ◽  
Ruyao Yan ◽  
...  
Keyword(s):  
Water System ◽  
Northern China ◽  
Karst Water ◽  
Karst Aquifers

scholarly journals Protection of the Liuzheng Water Source: a Karst Water System in Dawu, Zibo, China

Water ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 698 ◽  
Author(s):  
Henghua Zhu ◽  
Yanan Dong ◽  
Liting Xing ◽  
Xiaoxun Lan ◽  
Lizhi Yang ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Large Scale ◽  
Groundwater Resources ◽  
Water System ◽  
Water Source ◽  
Simulation Method ◽  
Karst Water ◽  
Domestic Water ◽  
Numerical Simulation Method ◽  
Protection Area

The Dawu water source is a rare, large-scale groundwater source located in northern China. The water supply function from this water source has, however, been lost due to anthropogenic pollution. In order to fully utilize valuable groundwater resources, a new water source of urban domestic water in Liu Zheng is planned. In this study, a tracer test and a numerical simulation method are used to examine the hydraulic connection between the Liuzheng water source and the Wangzhai industrial park; to optimize the exploitation layout of the Liuzheng water source and Dawu water source; and to propose the extent of the Liuzheng water source protection area. Results indicate that: (1) Karst development in the study area is uneven, and the Wangzhai area is a recharge area of the Liuzheng water source; (2) it is predicted that the groundwater flow field will not be significantly changed when a groundwater volume of 150,000 m3/day is exploited from the Liuzheng water source; (3) it is predicted that the proposed chemical park in Wangzhai will gradually pollute to the groundwater in the northern area of Liuzheng; and (4) results using the empirical formula method and the numerical simulation method indicate that the area of the primary protection area of the Liuzheng water source is about 0.59 km2, and the area of the secondary protection area is about 14.98 km2. Results from this study provide a certain technical basis for the exploitation and protection of groundwater in the Liuzheng water source.

Sources and migration of heavy metals in a karst water system under the threats of an abandoned Pb–Zn mine, Southwest China

2021 ◽  
Vol 277 ◽  
pp. 116774
Author(s):  
Wenjing Qin ◽  
Dongmei Han ◽  
Xianfang Song ◽  
Shaohua Liu
Keyword(s):  
Heavy Metals ◽  
Southwest China ◽  
Water System ◽  
Karst Water ◽  
And Migration

Reasonable Entry Layout of Lower Seam in Multi-Seam Mining Based on Numerical Simulation

2013 ◽  
Vol 295-298 ◽  
pp. 2980-2984
Author(s):  
Xiang Qian Wang ◽  
Da Fa Yin ◽  
Zhao Ning Gao ◽  
Qi Feng Zhao
Keyword(s):  
Numerical Simulation ◽  
Stress Distribution ◽  
Coal Seam ◽  
Coal Mine ◽  
Abutment Pressure ◽  
Surrounding Rock ◽  
Geological Conditions ◽  
Seam Mining

Based on the geological conditions of 6# coal seam and 8# coal seam in Xieqiao Coal Mine, to determine reasonable entry layout of lower seam in multi-seam mining, alternate internal entry layout, alternate exterior entry layout and overlapping entry layout were put forward and simulated by FLAC3D. Then stress distribution and displacement characteristics of surrounding rock were analyzed in the three ways of entry layout, leading to the conclusion that alternate internal entry layout is a better choice for multi-seam mining, for which makes the entry located in stress reduce zone and reduces the influence of abutment pressure of upper coal seam mining to a certain extent,. And the mining practice of Xieqiao Coal Mine tested the results, which will offer a beneficial reference for entry layout with similar geological conditions in multi-seam mining.

Hydrochemical and isotopic evidence of origin of thermal karst water at Taiyuan, northern China

2009 ◽  
Vol 20 (5) ◽  
pp. 879-889 ◽  
Author(s):  
Teng Ma ◽  
Yanxin Wang ◽  
Qinghai Guo ◽  
Chunmiao Yan ◽  
Rui Ma ◽  
...  
Keyword(s):  
Northern China ◽  
Karst Water ◽  
Isotopic Evidence

Restoration of karst water system in Jinan, China

2015 ◽  
pp. 647-652
Author(s):  
Juan Zhou ◽  
Liting Xing ◽  
Song Wang ◽  
Huibo Zhuang ◽  
Tongwen Dou ◽  
...  
Keyword(s):  
Water System ◽  
Karst Water

Numerical simulation of coal seam joints and stiffness effects on coal bumps

2004 ◽  
pp. 459-462
Author(s):  
Yaodong Jiang ◽  
Wengang Liu ◽  
Yixin Zhao
Keyword(s):  
Numerical Simulation ◽  
Coal Seam ◽  
Coal Bumps
Sign in / Sign up

Export Citation Format

Share Document