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利用北京丰台大灰厂观测台站1970—2003年的长期综合观测资料,系统分析了降雨 和地下水对北京八宝山断层变形行为的影响．研究结果表明:当降雨量持续稳定周期性变 化,则断层孔隙压也呈稳定周期性变化,断层变形行为也表现出明显的规则周期性变化;当 降雨量明显偏低或偏离正常周期性变化,则断层孔隙压周期性消失,断层的变形行为方式也 发生改变,降雨通过改变断层带孔隙压力的变化而影响着八宝山断层的变形行为．结合该断 层已有研究结果,认为降雨和地下水有可能通过改变断层变形行为方式而影响着区域构造应 力／应变场的调整．这一结果将对研究地球浅部流体与固体相互作用提供直接的观测证据．
Based on the long-term comprehensive observation data from 1970 to 2003 of Fengtai Large Ash Factory observation station in Beijing, the effects of rainfall and groundwater on the fault deformation of Beijing Babaoshan were systematically analyzed. The results show that when the rainfall continuously and stably changes periodically, the pore pressure of the fault also shows a stable periodic change, and the deformation behavior of the fault also shows obvious regular periodic changes. When the rainfall is obviously lower or deviates from the normal periodic change, The pore pressure of the fault disappears periodically and the deformation behavior of the fault also changes. Rainfall changes the deformation behavior of the Babaoshan fault by changing the pore pressure of the fault zone. According to the research results of the fault, it is considered that rainfall and groundwater may affect the tectonic stress / strain field adjustment by changing the fault deformation behavior. This result will provide direct observation evidence for studying fluid-solid interactions in the shallow parts of the earth.