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研究活动断裂的构造格架,以震源机制解和现今位移测量资料为基础,采用非连续介质有限元法,对信阳地区现今构造应力场进行了数值模拟。结果表明,信阳地区现今区域构造应力场的特征反映出沿北西向游河—赐儿山、龟山—凉亭活动断裂和北东向张湾—平桥、南湾—氵师河港活动断裂的端部和拐点应力集中;信阳市燃气混气站场址处于构造应力平缓区,构造应力集中区离燃气混气站场址的距离均在7km以上。这一结果为信阳市燃气混气站工程的建设提供了现今构造应力场方面的依据。
Based on the focal mechanism solution and the current displacement measurement data, the tectonic framework of the active faults was studied. The discontinuous medium finite element method was used to simulate the current tectonic stress field in Xinyang. The results show that the characteristics of the tectonic stress field in the present Xinyang area reflect that the active faults along the northwesterly - the Cher, the Kameyama - gazebo and the northeastern Zhangwan - Pingqiao and Nanwan - The stress concentration of the Ministry and the inflection point; Xinyang gas mixing station site in the tectonic stress relief zone, the tectonic stress concentration area away from the gas mixing station site are more than 7km. This result provides the basis for the current tectonic stress field for the construction of Xinyang gas mixing station project.