长江科学院院报 ›› 2013, Vol. 30 ›› Issue (11): 77-82.DOI: 10.3969/j.issn.1001-5485.2013.11.0152013,30(11):77-82

• 岩土工程 • 上一篇    下一篇

水压致裂法地应力测试在水电工程中的应用

赵国平1,陈文华1,马鹏1,卢泳1,周春宏2   

  1. 1.浙江华东工程安全技术有限公司,杭州310014;
    2.浙江华东建设工程有限公司,杭州310014
  • 收稿日期:2012-08-31 修回日期:2013-11-07 出版日期:2013-11-30 发布日期:2013-11-07
  • 作者简介:赵国平(1979-),男,山西吕梁人,高级工程师,硕士,主要从事工程地质及水文地质、岩体试验、工程物探等方面研究工作,(电话)0571-56553769(电子信箱)zhao_gp@ecidi.com。

Brief Discussion on the Application of Geostress Measurement by Hydrofracturing Technique in Hydropower Engineering

ZHAO Guo-ping1, CHEN Wen-hua1, MA Peng1, LU Yong1, ZHOU Chun-hong2   

  1. 1.Zhejiang Huadong Engineering Safety Technology Co., Ltd., Hangzhou 310014,China;
    2. Zhejiang Huadong Construction Engineering Co., Ltd., Hangzhou 310014,China
  • Received:2012-08-31 Revised:2013-11-07 Online:2013-11-30 Published:2013-11-07

摘要: 阐述了水压致裂地应力测试方法在水电工程中应用状况。为了获得科学、客观的测试记录,进一步综合分析水压致裂法测试成果,结合众多工程实例图形,有针对性地分析了水压致裂法地应力测试过程中岩体波速、渗透流速、“V”型谷等与地应力的相关关系及规律性。测试记录的应力与测试过程中流速的控制有着很大的相关性;地应力量值分布及方向受洞径、“V”型谷的大小和特征所影响;测点地应力值的大小与波速的高低在宏观上有着一定的规律性。同时也对水压致裂法测试中若干问题提出探讨,为水压致裂法地应力测试在水电工程中的应用提供参考。

关键词: 水压致裂法, 地应力分布, “V”型谷, 波速, 问题及探讨

Abstract: The in-situ stress measurement by hydrofracturing method in hydraulic engineering is expounded. In order to obtain scientific and objective test records, and to further analyze the test results, the relation and regularity between geostress respectively with wave velocity in rock mass, seepage flow velocity, and V-shape valley are analyzed on the basis of test diagrams in many practical engineering examples. The recorded stress is closely related with flow velocity during the test. Geostress distribution and direction are affected by tunnel diameter, size and characteristics of the V-shape valley. Moreover, in a macro sense, the geostress value have certain regularity with wave velocity. Last, some issues in the hydrofracturing test method are discussed.

Key words: hydrofracturing method, stress distribution, V-shape valley, wave velocity, questions and discussion

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