Construction of Concrete-Faced Rockfill Dams with Weak Rocks
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Volume 132, Issue 6
Abstract
Constructing concrete-faced rockfill dams (CFRDs) with weak rocks has great advantages as a result of the use of local materials, cost-effectiveness, extensive adaptability, simple construction, and short construction period. However, the behaviors of CFRDs constructed with weak rocks are not well-understood. This paper reports the physical, mechanical, and hydraulic properties of weak rockfill during placement and compaction in three dam projects in China. These properties were obtained from laboratory and field tests. Important considerations, such as the control of crushing and crusting and the increase of the permeability of weak rocks, are discussed. Numerical studies on the settlements and slope stability of the dams were conducted and their results were compared with the field measurements. This study provides the opportunities for further understanding the behaviors of CFRDs with weak rocks.
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Acknowledgments
This research was sponsored by China Water Resources and Hydropower Engineering Corporation. The writers are grateful for the support from China Institute of Water Resources and Hydropower Research and the valuable help and discussions with Professor Zheng-Hong Wang at Beijing University of Technology, China, Jie Han at the University of Kansas, Jiann-Quo Tarn at National Cheng Kung University, Taiwan, China, Jian Zhou at Zhejiang University, China, Dr. Ze-Ping Xu at China Institute of Water Resources and Hydropower Research, China, and Xiong Zhang at Texas A&M University.
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Information & Authors
Information
Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 132 • Issue 6 • June 2006
Pages: 778 - 785
Copyright
© 2006 ASCE.
History
Received: Nov 3, 2003
Accepted: Oct 7, 2005
Published online: Jun 1, 2006
Published in print: Jun 2006
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