北疆深埋隧洞地应力与区域应力场的相关性研究

尹健民; 周春华; 李云安; 崔东; 汪洋

doi:10.3969/j.issn.1001-5485.2014.11.0092014,31(11):42-46

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长江科学院院报 ›› 2014, Vol. 31 ›› Issue (11) : 42-46. DOI: 10.3969/j.issn.1001-5485.2014.11.0092014,31(11):42-46

岩石力学特性与试验

北疆深埋隧洞地应力与区域应力场的相关性研究

尹健民¹,周春华^1,2,李云安²,崔东³,汪洋¹

作者信息 +

Correlation between a Tunnel Stress and the Regional Stress Field in North Xinjiang

YIN Jian-min¹,ZHOU Chun-hua^1,2,LI Yun-an²,CUI Dong³,WANG Yang¹

Author information +

文章历史 +

摘要

在地应力实测资料匮乏的北疆阿尔泰地区,对某深埋引水隧洞进行了水压致裂法地应力场测试。实测结果与区域构造应力场的对比分析表明,研究区域为构造型应力场,最大水平主应力方位与地震的震源机制解一致,呈NNE向,与区域构造应力场相吻合;且埋深约300m以上,平均水平应力与铅直应力的比值不再变小(接近1.0)。应加强该区深部构造应力场研究,重视现场实测手段的应用,提高对区域应力场的宏观把握,为指导类似深埋工程的设计和施工提供参考。

Abstract

Stress measurement data is in lack in Northern Xinjiang’s Altai region. We tested the stress field of a deep water diversion tunnel in this region by using hydraulic fracturing method. Test result and analysis reveal that the tested stress field is tectonic stress type and the maximum horizontal principal stress orientation is NNE, which is in consistency with the focal mechanism solution. Moreover, it reveals that the ratio of average horizontal stress to vertical stress changes no smaller (close to 1.0)in the depth of more than 300 m. We should strengthen the research on tectonic stress field in deep area and pay attention to the application of in-situ measurement means to improve the macroscopic understanding of regional stress field.

导出引用

尹健民,周春华,李云安,崔东,汪洋. 北疆深埋隧洞地应力与区域应力场的相关性研究[J]. 长江科学院院报. 2014, 31(11): 42-46 https://doi.org/10.3969/j.issn.1001-5485.2014.11.0092014,31(11):42-46

YIN Jian-min,ZHOU Chun-hua,LI Yun-an,CUI Dong,WANG Yang. Correlation between a Tunnel Stress and the Regional Stress Field in North Xinjiang[J]. Journal of Changjiang River Scientific Research Institute. 2014, 31(11): 42-46 https://doi.org/10.3969/j.issn.1001-5485.2014.11.0092014,31(11):42-46

中图分类号： U45

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