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Engineering    2016, Vol. 2 Issue (4) : 498 -509     https://doi.org/10.1016/J.ENG.2016.04.001
Research |
Major Technologies for Safe Construction of High Earth-Rockfill Dams
Hongqi Ma,Fudong Chi()
Huaneng Lancang River Hydropower Inc., Kunming 650214, China
Abstract
Abstract  

The earth-rockfill dam is one of the primary dam types in the selection of high dams to be constructed in Western China, since it is characterized by favorable adaptability of the dam foundation; full utilization of local earth, rock, and building-excavated materials; low construction cost; and low cement consumption. Many major technical issues regarding earth-rockfill dams with a height of over 250 m were studied and solved successfully in the construction of the 261.5 m Nuozhadu earth core rockfill dam. This paper describes research achievements and basic conclusions; systematically summarizes the accumulated experiences from the construction of the Nuozhadu Dam and other high earth-rockfill dams; and discusses major technical issues, such as deformation control, seepage control, dam slope stability, safety and control of flood discharging, safety and quality control of dam construction, safety assessments, early warning, and other key technical difficulties. This study also provides a reference and technological support for the future construction of 300 m high earth-rockfill dams.

Keywords High earth-rockfill dam      Safe construction      Major technologies     
Fund: 
Corresponding Authors: Fudong Chi   
Just Accepted Date: 17 October 2016   Online First Date: 24 November 2016    Issue Date: 28 December 2016
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Hongqi Ma
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Cite this article:   
Hongqi Ma,Fudong Chi. Major Technologies for Safe Construction of High Earth-Rockfill Dams[J]. Engineering, 2016, 2(4): 498 -509 .
URL:  
http://engineering.org.cn/EN/10.1016/J.ENG.2016.04.001     OR     http://engineering.org.cn/EN/Y2016/V2/I4/498
References
1   Consulting and Research Project of Chinese Academy of Engineering “Key Technical Issues for Construction Safety for Ultra-high Earth-rockfill dam” Project Team. Research report of key technical issues for construction safety for ultra-high earth-rockfill dam. 2014. Chinese.
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4   Du XH, Li B, Chen ZY, Wang YJ, Sun P. Evaluations on the safety design standards for dams with extra height or cascade impacts. Part II: slope stability of embankment dams. J Hydraul Eng 2015;46(6):640–9.
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7   Ma HQ. Development and innovation of dam construction technology in China. J Hydroelectr Eng 2014;33(6):1–10. Chinese.
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