地应力测量的非弹性应变恢复法及应用实例

王连捷, 孙东生, 林为人, 崔军文, 彭华, 高禄, 王薇, 唐哲民, 乔子江. 地应力测量的非弹性应变恢复法及应用实例[J]. 地球物理学报, 2012, 55(5): 1674-1681, doi: 10.6038/j.issn.0001-5733.2012.05.024
引用本文: 王连捷, 孙东生, 林为人, 崔军文, 彭华, 高禄, 王薇, 唐哲民, 乔子江. 地应力测量的非弹性应变恢复法及应用实例[J]. 地球物理学报, 2012, 55(5): 1674-1681, doi: 10.6038/j.issn.0001-5733.2012.05.024
WANG Lian-Jie, SUN Dong-Sheng, LIN Weiren, CUI Jun-Wen, PENG Hua, GAO Lu, WANG Wei, TANG Zhe-Min, QIAO Zi-Jiang. Anelastic strain recovery method to determine in-situ stress and application example[J]. Chinese Journal of Geophysics (in Chinese), 2012, 55(5): 1674-1681, doi: 10.6038/j.issn.0001-5733.2012.05.024
Citation: WANG Lian-Jie, SUN Dong-Sheng, LIN Weiren, CUI Jun-Wen, PENG Hua, GAO Lu, WANG Wei, TANG Zhe-Min, QIAO Zi-Jiang. Anelastic strain recovery method to determine in-situ stress and application example[J]. Chinese Journal of Geophysics (in Chinese), 2012, 55(5): 1674-1681, doi: 10.6038/j.issn.0001-5733.2012.05.024

地应力测量的非弹性应变恢复法及应用实例

详细信息
    作者简介:

    王连捷,男, 1933年生,研究员,1960年毕业于北京地质学院,从事地质灾害、地应力测量、应力场数值分析及应用研究. E-mail:wanglj01@sina.com

  • 中图分类号: P315,P541

Anelastic strain recovery method to determine in-situ stress and application example

  • 岩芯非弹性应变恢复法是近年来发展起来的比较经济有效的深部地应力测量方法,汶川5.12地震后,我国大陆首次将该方法应用于汶川地震断裂带科学钻的地应力测量.本文简述了该方法的原理、计算方法和汶川地震科学钻一号孔的典型结果.给出了一号孔在所测深度之处的三个主应力的大小和方向.三个主应力中,最大主应力和中间主应力近于水平,最小主应力近于直立.最大主应力方向为北西.在746 m深度,三个主应力的大小为25.2 MPa,21.5 MPa,18.5 MPa.这种应力状态可使龙门山断层产生逆冲兼右行走滑运动,与汶川5.12地震的断层运动一致.该方法得到的结果与震源机制解及其他地应力测量方法得到的结果吻合.测量结果表明,非弹性应变恢复法具有较大的实用价值.特别是在较大深度的钻孔和地层较破碎的复杂地质条件下,应力解除法、水压致裂法等难以实施时,此方法仍有可能获得较可靠的地应力数据,适应性更强.
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出版历程
收稿日期:  2011-08-24
修回日期:  2012-03-31
上线日期:  2012-05-20

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