| 钻孔弹模法评价小湾水电站坝基岩体卸荷特征 |
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| 引用本文： | 尹健民,艾凯,刘元坤,李永松.钻孔弹模法评价小湾水电站坝基岩体卸荷特征[J].长江科学院院报,2006,23(4):44-46. |
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| 作者姓名： | 尹健民 艾凯 刘元坤 李永松 |
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| 作者单位： | 长江科学院,岩基研究所,武汉,430010 |
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| 摘 要： | 在澜沧江小湾水电站拱坝建基面进行了5个钻孔的基 岩钻孔弹模测试，以评价开挖爆破对岩体的松弛效应与卸荷深度。扼要介绍了钻孔弹模测试 原理及测试结果，估计了卸荷松弛深度, 并与单孔声波监测结果进行了对比分析。
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| 关 键 词： | 坝基 岩体 卸荷带 钻孔弹模 波速 |
| 文章编号： | 1001-5485（2006）04-0044-03 |
| 收稿时间： | 2005-06-16 |
| 修稿时间： | 2005-06-16 |
Unloading Characteristic Evaluation of Xiaowan Hydropower Station's Foundation Rock Mass by Borehole Elasticity Modulus Method |
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| YIN Jian-min,AI Kai,LIU Yuan-kun,LI Yong-song.Unloading Characteristic Evaluation of Xiaowan Hydropower Station''''s Foundation Rock Mass by Borehole Elasticity Modulus Method[J].Journal of Yangtze River Scientific Research Institute,2006,23(4):44-46. |
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| Authors: | YIN Jian-min AI Kai LIU Yuan-kun LI Yong-song |
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| Affiliation: | Yangtze River Scientific Research Institute, Wuhan 430010,China |
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| Abstract: | Borehole elasticity modulus measurements were conducted in five holes drilled from the excavated rock foundation surface of Xiaowan Hydropower Station's arch dam,situated on Lancang River,in order to evaluate the unloading relaxation depth due to excavation blasting.The principle of borehole elasticity modulus measurement and results are presented,and the unloading relaxation depth is estimated.The depth is compared with that obtained by single-hole sonic velocity monitoring. |
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| Keywords: | dam foundation rock mass unloading zone borehole elasticity modulus wave velocity |
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