TY  - Data
T1  - Experimental data set of acoustic characteristics identification of shallow geological hazards in Beijing (2017-2018)
A1  - Ke ke
DO  - 10.12072/ncdc.SRIPE.db1677.2022
PY  - 2022
DA  - 2022-02-25
PB  - National Cryosphere Desert Data Center
AB  - In 2017 and 2018, the acoustic characteristics of shallow geological disasters were identified in Beijing, and the data were obtained from the simulation experiments. The observation elements include pressure, porosity, density, acoustic velocity and so on. The data elements include shallow gas, shallow water flow and gas hydrate. The shallow gas includes: shallow gas pressure, P-wave velocity, confining pressure, density, porosity and particle size; In shallow water flow, there are pressure, P-wave velocity, confining pressure, density, porosity and particle size; Natural gas hydrate includes: brine saturation, hydrate sample length, hydrate conversion, hydrate saturation, P-wave velocity, temperature and pressure. The data resources were collected from June 1, 2017 to December 30, 2018. The propagation velocity of P-wave in normal formation, shallow gas with different pressure levels and natural gas hydrate with different saturation was measured by acoustic detection system, which was used to establish the acoustic prediction model of shallow geological disasters</ p>
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/a3402ebc-b62a-4425-98db-b74d736fcce6
ER  -