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TKY Reservoir Safety Monitoring Project
Project Background
The TKY Reservoir is located in the TKY River Valley of Guanyang County, Guangxi Province. The catchment area covers 11 square kilometers, with a total storage capacity of 1.449 million cubic meters, a useful storage capacity of 1.1153 million cubic meters, and a dead storage capacity of 60,000 cubic meters (according to hydrological verification data from 1985). The dam type is a clay-core earthfill dam, founded on sandy loam soil. The original design elevation of the dam crest was 345.06 meters, with a planned crest height of 17 meters, later revised to 39 meters, but currently standing at 31.5 meters. The upstream slope is 1:3, and the downstream slope is 1:2.5. The crest length is 140 meters, with a width of 1.5 meters. The dead water level is 325.59 meters, while the normal pool level is 340.9 meters. The 50-year design flood level is 343.9 meters, with a discharge rate of 147 cubic meters per second; the 50-year check flood level is 344.7 meters, with a discharge rate of 194 cubic meters per second. Originally, a spillway pipe was installed at the left abutment of the dam, with a total length of 140 meters and a longitudinal gradient of 1/2000. Due to significant seepage, in 1977 a horizontal tunnel was excavated on the right abutment slope to serve as a stilling basin, and a separate inclined spillway was constructed on the same side. Given the large number of residential settlements downstream, and in order to ensure the safety of downstream residents and the normal operation of the reservoir, an integrated three-dimensional monitoring system has been established for the reservoir.
Monitoring equipment
GNSS receivers, rain gauges, video monitoring stations, piezometer arrays, and seepage pressure transducers are integrated into an automated data acquisition system to enable comprehensive, all-round monitoring and collection of data on reservoir dam structural safety, including seepage pressure profiles, absolute displacements, regional rainfall amounts, reservoir water levels, and on-site video surveillance.
By monitoring rainfall conditions at reservoirs, it is possible to promptly obtain data on rainfall amounts and water levels, predict flood risks, support informed scheduling decisions, and thereby prevent flood disasters.
Monitor the structural safety of reservoirs, identify potential hazards, and take timely corrective actions to prevent dam failures, leaks, and other accidents, thereby ensuring the safety of nearby residents and critical infrastructure.
By analyzing data and monitoring results, this approach provides a scientific basis for reservoir management authorities to develop sound operation and maintenance plans, thereby ensuring the long-term stable operation and safety of the reservoir.
Providing real-time monitoring data and alarm functions enables relevant authorities to respond promptly to emergencies, thereby reducing casualties and property damage.
Contact Information
6th Floor, Building 10, Entrepreneurship Industrial Park, Chaoyang Township, Qixing District, Guilin City, Guangxi Zhuang Autonomous Region
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