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本文报导在郯城庐江断裂带中段的地应力测量结果,初步揭示了该断裂带附近的地应力场特征。测得该断裂带深层的最大水平主应力方向为北北东向,而浅层则为北西向。初步认为,近地表和深部应力方向不一致的原因在于地形的影响。最后还讨论了关于该断裂带的现今活动方式和动力来源。
This paper reports the results of stress measurement in the middle section of Lujiang fault zone in Tancheng, revealing the characteristics of the geostress field near the fault zone. The maximum horizontal principal stress in the deep fault zone is measured in the north-north east direction while in the shallow layer the north-west direction is measured. It is preliminarily thought that the reason that the direction of near-surface and deep stress are inconsistent lies in the influence of the terrain. Finally, the ways and sources of current activity on the fault zone are discussed.