长江科学院院报 ›› 2014, Vol. 31 ›› Issue (11): 47-50.DOI: 10.3969/j.issn.1001-5485.2014.11.0102014,31(11):47-50

• 岩石力学特性与试验 • 上一篇    下一篇

某坝基岩体质量分级与力学参数试验研究

郭喜峰1,2,晏鄂川2,吴相超1,刘传中3   

  1. 1. 长江科学院 水利部岩土力学与工程重点实验室,武汉 430010;
    2. 中国地质大学 工程学院,武汉 430074;
    3. 重庆市水利电力建筑勘测设计研究院,重庆 400020
  • 收稿日期:2014-07-23 修回日期:2014-11-05 出版日期:2014-11-01 发布日期:2014-11-05
  • 作者简介:郭喜峰(1984-),男,湖北黄冈人,博士研究生,主要从事岩石力学特性与工程应用方面的研究工作,(电话)023-88192714(电子信箱)xifeng1984@126.com。
  • 基金资助:
    国家重点基础研究发展计划(973)项目(2011CB710603);中央级公益性科研院所基本科研业务费项目(CKSF2013039)

Quality Classification and Tests on Mechanical Parameters of Dam Foundation Rock Mass

GUO Xi-feng1,2, YAN E-chuan2, WU Xiang-chao1, LIU Chuan-zhong3   

  1. 1. Key Laboratory of Geotechnical Mechanics and Engineering of the Ministry of Water Resources, Yangtze River Scientific Research Institute, Wuhan 430010, China;
    2. Faculty of Engineering, China University of Geosciences, Wuhan 430074, China;
    3. Chongqing Surveying and Design Institute of Water Resource, Electric Power and Architecture, Chongqing 400020, China
  • Received:2014-07-23 Revised:2014-11-05 Published:2014-11-01 Online:2014-11-05

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摘要： 某水库工程的双曲拱坝基岩为上软下硬的近水平层状岩体,不同高程的岩体性状差异明显。首先对坝址区主要持力层岩体进行岩体质量分级,其次对薄层灰岩、钙质泥岩夹泥质白云岩进行了抗剪试验与变形试验,试验结果与所在岩层的岩体质量分级及结果相符。最后根据坝基岩体力学特征提出了工程建议。

关键词: 岩体质量, 力学参数, 试验, 工程建议

Abstract: The foundation stratum of a concrete hyperbolic arch dam consists of near horizontal layered rockmass having relative soft layers in the upper abutment. There are obvious differences among rockmass behavior at different elevations. In this research, rockmass quality classification is carried out for the main bearing stratum at dam site, and then direct shear tests and deformation tests are conducted for thin limestone and calcareous mudstone interlayer nuddy dolomite. Test results are in agreement with the results of rockmass quality classification. Some engineering recommendations are also given in the light of dam foundation’s rockmass mechanical characteristics.

Key words: rockmass quality, mechanical parameters, test, engineering recommendation

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