| 黄河某高拱坝岩体力学参数的选取 |
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| 引用本文： | 戚炜,王勇智,姜伏伟.黄河某高拱坝岩体力学参数的选取[J].岩土力学,2011,32(Z2):478-483. |
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| 作者姓名： | 戚炜 王勇智 姜伏伟 |
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| 作者单位： | 1. 长安大学 地质工程与测绘学院，西安 710054；2. 长安大学 西部地质资源与地质工程教育部重点实验室，西安 710054； 3. 长安大学 国土资源部岩土工程开放研究实验室，西安 710054；4. 东华理工大学 土木工程与环境学院，江西 抚州 344000 |
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| 摘 要： | 在对比国内外各种选取岩体力学参数方法的基础上，对黄河某高拱坝坝址区主要岩层中生代二长岩和三叠系变质砂岩采用现场原位试验和数据统计方法获取岩体力学参数。用刚性圆形承压板法进行岩体变形试验，建立了岩体纵波波速与变形模量的拟合关系，用最小二乘回归法处理变形数据。用平推法直剪试验进行岩体抗剪断强度试验，用 - 点群中心法处理直剪试验数据。软弱带取样后进行室内断层泥物理力学性质试验，运用岩土工程勘察规范中参数统计经验公式来获得各软弱带的抗剪参数。点群法求得的各抗剪指标总体上与原位试验得到的结果相一致，证明该法可用于岩体力学参数选取。
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| 关 键 词： | 高拱坝 岩体力学 变形模量 抗剪强度 最小二乘回归法 点群中心法 |
| 收稿时间： | 2010-12-08 |
Determination of mechanical parameters of rock mass at a high arch dam on Yellow River |
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| QI Wei,,WANG Yong-zhi,JIANG Fu-wei.Determination of mechanical parameters of rock mass at a high arch dam on Yellow River[J].Rock and Soil Mechanics,2011,32(Z2):478-483. |
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| Authors: | QI Wei WANG Yong-zhi JIANG Fu-wei |
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| Institution: | QI Wei1,2,3,WANG Yong-zhi1,JIANG Fu-wei 4(1.College of Geology Engineering and Surveying,Chang'an University,Xi'an 710054,China,2.Key Laboratory of Western Geology Resources and Geology Engineering,Ministry of Education,3.Open Research Laboratory of Geotechnical Engineering under the Ministry of Land and Resources,4.College of Civil & Environment Engineering,East China Institute of Technology,Fuzhou,Jiangxi 344000,China) |
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| Abstract: | Different determination methods of mechanical parameters of rocks at home and abroad are contrasted.In-situ tests are made on Mesozoic monzonite and Triassic metamorphic sandstone at dam site.Statistical methods are used in order to determine rock mechanical parameters.Rigid circular bearing plate is used for rock mass deformation test.Then the fitting relationships between the longitudinal wave velocity of rock masses and deformation moduli are established.Method of least square regression is used for defo... |
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| Keywords: | high arch dam mechanics of rock mass deformation modulus shearing strength method of least square regression point group analysis |
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