%0 Dataset
%T Test data set of water blocking layer modification and reconstruction technology in alpine Kuangqu mining area (2022-2025)
%J National Cryosphere Desert Data Center
%I National Cryosphere Desert Data Center(www.ncdc.ac.cn)
%U http://www.ncdc.ac.cn/portal/metadata/3f084d7b-04c6-44a5-b8e0-d3117877bdf4
%W NCDC
%A yang hai long
%A lu chang jin
%A yin wen tian
%A wu miao chen
%K coal gangue;Infiltration rate;Aquiclude
%X Soil composed of strip materials from open-pit mining and coal gangue has serious water leakage and frozen soil cannot be formed in the low temperature season. Build a water blocking layer at a certain depth away from the surface layer of the coal gangue soil to improve the water conservation capacity of the coal gangue soil. However, due to the lack of relevant reconstruction water blocking technology (structure) data sets, there is great uncertainty in the current implementation of soil reconstruction technology in Muli Kuangqu, Qinghai. In this study, indoor soil column infiltration test and simulated rainfall test were used to obtain a data set on the infiltration rate of coal gangue soil after the construction of water-blocking layers. Combined with mathematical statistical methods and mathematical model fitting and evaluation, the infiltration data set of coal gangue soil under the construction of different water-blocking layers was obtained. Through on-site verification and evaluation, it was found that the gradation of coal gangue crushed matter was 2:5:3(1~2mm, 0.5~1mm,<0.5 mm), the bulk weight of coal gangue crushed matter was controlled to be 1.60~ 1.75 g/cm2, the W-OH concentration was 3.5~4.5%, the spraying amount was 2.5~ 3.5 L/m2, and the PAM sowing amount was that dry spraying on the surface of the compacted coal gangue rock had the best effect on the range of 0.05~ 0.07 g/cm2.