摘要
为保证混凝土面板堆石坝岸坡趾板置于全风化基岩上的安全可靠性,分析了地基承载力、地基渗流控制、趾板稳定性和趾板不均匀沉降这4个关键技术问题,并结合越南宣光面板堆石坝工程提出了确保地基承载力、趾板与全风化基岩牢固连接、保证地基渗流稳定、设置趾板伸缩缝等工程技术措施。大坝监测结果表明,宣光面板堆石坝在运行期间渗流量较小,大坝变形正常。运用本文探讨的工程技术措施,将趾板置于全风化基岩上是安全可行的。
In order to ensure the safety and reliability of CFRD＇ s plinth placed on the bank slope of completely weathered bedrock, this paper analyses four key technical issues, including the bearing capacity of foundation, the seepage control of foundation, the stability of plinth, and the differential settlement of plinth. With the engineering example of Vietnamese Tuyen Quang CFRD, some appropriate engineering measures were proposed, which include improving the beating capacity of foundation, strengthening the connection between plinth and completely weathered bedrock, ensuring the seepage stability of foundation and setting plinth expansion joints in different bedrock junctions. The dam safety monitoring results show that the seepage volume of Tuyen Quang CFRD is small, and the deformation regularity of the dam is normal. By application of the engineering measures proposed in this paper, placing the plinth on completely weathered bedrock is safe and feasible.
出处
《水利水电科技进展》
CSCD
北大核心
2013年第6期80-82,94,共4页
Advances in Science and Technology of Water Resources
关键词
趾板
全风化基岩
渗控措施
地基承载力
面板堆石坝
plinth
completely weathered bedrock
seepage control measures
bearing capacity of foundation
CFRD
