TY  - Data
T1  - Rock mass mechanics data of dahaize mining area in Yulin City, Shaanxi Province and Pingshuo mining area in Shuozhou City, Shanxi Province (October 2019)
A1  - Qu Shen
DO  - 10.12072/ncdc.UTCMW.db2120.2022
PY  - 2022
DA  - 2022-05-30
PB  - National Cryosphere Desert Data Center
AB  - This data set is obtained by taking rock samples drilled at different depths and carrying out geotechnical experiments in the mining areaDuring the hydrogeological exploration of dahaize mining area in Yulin City, Shaanxi Province and Pingshuo mining area in Shuozhou City, Shanxi Province, the staff in the study area collected the core from the borehole through drilling exploration, trimmed the core into a standard cylinder with a diameter of 50 mm and a height of 100 mm, and sent it to Xi'an Research Institute of China Coal Technology Engineering Group for triaxial compression test. The data set contains 152 sets of geotechnical mechanics data from the two study areas of Haize mining area and Pingshuo mining area. The data content includes natural block density, particle density, porosity, natural water content, natural compressive strength, saturated compressive strength, softening coefficient, Proctor hardness coefficient, crushing expansion coefficient, vertical expansion rate, horizontal expansion rate, average elastic modulus, Poisson's ratio, tensile strength, internal friction angle, cohesion, etc. This data is mainly used to simulate the coupling evolution law of overburden stress fracture seepage field in the mining process. Based on the results of geotechnical mechanics data, the function of geotechnical mechanics data is to simulate and study the distribution and evolution of mining stress, which affects the formation of surrounding rock fracture grid and the change of permeability. The whole evolution process is the result of the coupling action of stress field, fracture field and seepage field.
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/b042e843-445f-4db3-be68-ab7fe73b5602
ER  -