Zipingpu Dam
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| Coordinates | 31 ° 2 '10 " N , 103 ° 34' 30" E | ||||||||
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| Lock type: | CFRD | ||||||||
| Construction time: | 2002-2006 | ||||||||
| Height of the barrier structure : | 156 m | ||||||||
| Height of the structure crown: | 884 m | ||||||||
| Power plant output: | 760 MW | ||||||||
| Data on the reservoir | |||||||||
| Reservoir length | 21 km | ||||||||
| Storage space | 315 million m³ | ||||||||
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The Zipingpu Dam ( Chinese 紫坪鋪 水壩 / 紫坪铺 水坝 , Pinyin Zǐpíngpū Shuǐbà, officially : 紫坪鋪 水利 樞紐 / 紫坪铺 水利 枢纽Pinyin : Zǐpíngpū Shuǐlì Shūniǔ, "Zipingpu water management hub" ) is a dam in the south of the dam People's Republic of China , which was completed in 2006 at Min Jiang above the city of Dujiangyan in Sichuan . It serves the water supply, hydropower generation and irrigation. The hydropower plant consists of four generators with a combined output of 760 MW . The CFR dam is 156 meters high; the reservoir holds 315 million cubic meters of water (according to other information 11,108 million m³). It complements the Dujiangyan irrigation system .
2008 earthquake
The earthquake on May 12, 2008 in Sichuan occurred very close to the dam. The epicenter was only 5 km away. The quake caused some damage to the dam, which had some cracks and other damage afterwards. Several thousand soldiers repaired the cracks on May 14th. The dam is said not to have been in danger.
In professional circles it was discussed that the damming of the reservoir due to its weight could have produced or favored the earthquake . In such a case one speaks of an induced earthquake . One example is the series of shallow and small earthquakes that struck the Hoover Dam in the United States. However, the Sichuan earthquake occurred at a depth of around 19 kilometers and occurred in a zone that can look back on a long tradition of sometimes catastrophic earthquakes even before the dam was built. Other experts tend to deny the possibility of an induced earthquake. The main counter arguments are:
- Before the earthquake, the water level was rather low and far from full congestion.
- At other dams in which there had been induced earthquakes in the past, their strength was always lower (in up to 100 cases).
See also
Web links
Individual evidence
- ^ Zipingpu Water Control Project. ( Memento from April 22, 2007 in the Internet Archive )
- ↑ Zipingpu Hydropower plant stopped by quake.
- ^ Critical Sichuan dam stable, but state of some upstream dams still unclear. Interfax
- ↑ Jane Qiu: Evidence Mounts for Dam-Quake Link. In: Science , Volume 336, No. 6079, 2012, p. 291, DOI: 10.1126 / science.336.6079.291 .
- ↑ Malcolm Moore: Chinese earthquake may have been man-made, say scientists. The Daily Telegraph , February 3, 2009.
- ↑ Magnitude 7.9 - Eastern Sichuan, China, 2008 May 12 06:28:01 UTC: Tectonic Summary. USGS Earthquake Hazards Program (English).