TY  - Data
T1  - Monitoring on control effect of "50000 m3" and "7000 m3" in Three Gorges Reservoir area of Yangtze River from 2001 to 2005
A1  - Yi Wu
DO  - 10.12072/ncdc.Sanxia.db0017.2020
PY  - 2020
DA  - 2020-12-17
PB  - National Cryosphere Desert Data Center
AB  - The two main projects for the prevention and control of dangerous rock masses in the Three Gorges of the Yangtze River - the "50000 square meter" and "7000 square meter" anchor cable project and the T8-T12 joint section load-bearing and anti-skid key project - began in May 1995 and were completed in August 1997 and August 1999, respectively. The prevention and control of landslide geological disasters is a high-risk project, and the impact of engineering construction on dangerous rock masses, especially on locally sensitive parts, is difficult to completely avoid. It is a normal phenomenon for disturbed dangerous rock masses to adapt to stress adjustment and produce corresponding deformation. However, if the disturbance is too large, it may cause the dangerous rock mass to lose control and have serious adverse consequences. During the construction process of prevention and control engineering, synchronously monitor the deformation dynamics of dangerous rock masses, analyze and judge the stability and deformation trend of dangerous rock masses, and make advance predictions; Timely capture major deformation information and signs of sudden danger, for the owner and construction unit to make corresponding preventive and emergency measures. This dataset includes the monitoring dataset for the effectiveness of engineering prevention and control. The data format is in CSV format, and the observation period is once a month. The data fields include: STARTDATE (start time of acquisition), ENDDATE (end time of acquisition), quduan (section), pointname (point name), X (horizontal displacement variable in X direction, unit: millimeters), y (horizontal displacement variable in y direction, unit: millimeters), f (horizontal displacement variable, unit: millimeters), direction (deformation direction, unit: degrees), yblx (monthly horizontal displacement variable in x direction, unit: millimeters), Ybly (horizontal displacement monthly variable in y-direction, in millimeters), yblf 
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/bc3034d1-833f-43aa-a04b-c34a2d71c97e
ER  -