TY  - Data
T1  - Numerical simulation data set for dynamic prediction of water inflow under the influence of mining in nalinhe No. 2 mine, Ordos City, Inner Mongolia Autonomous Region (January 2021)
A1  - Shi Xiaoqing
DO  - 10.12072/ncdc.UTCMW.db2191.2022
PY  - 2022
DA  - 2022-05-31
PB  - National Cryosphere Desert Data Center
AB  - In the process of coal mining, excavation, mining and drainage have a significant impact on the geological structure, hydrogeological parameters and hydrodynamic conditions of coal seam water system. Based on the temporal and spatial variation law of geological structure and hydrogeological parameters of coal seam water system driven by coal mining, this topic constructs a coupled numerical model of groundwater flow and solute transport with structure parameter boundary collaborative dynamic calibration, so as to accurately describe the structural evolution, parameter variation and boundary transformation process induced by coal seam water system during coal mining, Accurately simulate the evolution process of mine water and quality.This data set is generated by simulation calculation using the self-developed structure parameter boundary collaborative dynamic calibration coupling numerical model of groundwater flow and solute transport. The establishment of the numerical model is based on the open data of geology, hydrogeology, meteorology and mining area planning of the study area, and the model parameters are corrected by using the measured data of natural water level and pumping test of two hydrogeological boreholes md23 and md27 provided in the coal exploration report of No. 2 well field of nalinhe mining area, Dongsheng coalfield, Inner Mongolia Autonomous Region in 2007. The corrected model can better reflect the characteristics of flow field and water balance in the natural state of the study area. The dynamic prediction data of water inflow is calculated by setting the working face boundary conditions and disturbance area parameters of the first mining face in different mining stages in the model. In order to evaluate the prediction accuracy, the measured values of water inflow for comparison are also provided in this data set. The data set contains 10 groups of data, in which each group of data contains 3 data points.
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/98e2ebed-a5db-41cb-a6d1-48c7faee728e
ER  -