TY  - Data
T1  - Surface subsidence rock movement observation dataset of Nalinhe No.2 mine field in Nalinhe mining area, Ordos City, Inner Mongolia Autonomous Region (April 2015 June 2018)
A1  - Zhang Kai
A1  - Li Xiaonan
DO  - 10.12072/ncdc.UTCMW.db2168.2022
PY  - 2022
DA  - 2022-05-31
PB  - National Cryosphere Desert Data Center
AB  - This dataset obtained the dynamic evolution characteristics of surface subsidence parameters during mining by measuring the surface deformation observation stations of three adjacent working faces in Nalinhe No.2 Mine, Ordos City, Inner Mongolia Autonomous Region. It simulated the coordinated changes of stress and strain in the rock and soil mass and the law of surface subsidence during mining, and proposed an optimized monitoring plan for soil vegetation zoning based on the dynamic parameters of surface subsidence.   In order to obtain relatively complete surface movement calculation parameters and grasp the surface movement laws of this mining area, the observation data of surface movement in the 31101 and 31102 working faces were processed to provide technical basis for the future design of "three underground" coal mining in this mine. The 31101 comprehensive mining face of Nalinhe No.2 Coal Mine is located near the eastern boundary of the first mining area, with a face length of 241m, a strike length of 2600m, a recoverable area of 626600m2, a designed mining height of 5.5m, and a recoverable reserve of 4.49 million tons; the 31102 comprehensive mining face is 241m long, a strike length of 3100m, a recoverable area of 746618m22, a designed mining height of 5.5m, and a recoverable reserve of 5.23 million tons. The ground elevation is+1138m~+1125.1m; the coal seam roof elevation is+571.898~+585.136m. When the coal seam becomes thinner, it is mined along the top and bottom according to the actual situation.   The dataset includes a total of 34 * 5 data points for the measurement line of the 31101 working face; 31101 working face inclination measurement line 20 * 5 data points; 31102 working face inclination measurement line has 14 * 5 data points, and the dataset is fully open for sharing.
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/90ae7b44-6b5e-4e75-89fe-622a6377f693
ER  -