山西夏县中心地震台形变山洞试记分析

Analysis on Test Records of Deformation in Mountain Cave at Seismological Station of Xiaxian,Shanxi

采用水平摆倾斜仪在夏县中心地震台山洞进行了近4个月的试记,经分析得出同一构造块体上地下水位变化易引起形变记录产生畸变,而不同构造块体上地下水变化对形变记录影响甚微的结论。为夏县中心地震台洞体的掘深,实施“十五”项目做了前期准备工作,也为有关部门开展此方面工作提供了依据。

Near four months＇ test record of horizontal pendulum tiltmeter is carried out in mountain cave of Central Seismological Station of Xiaxian. It is concluded by analysis that variation of groundwater level on the same tectonic block usually make deformation record distorted while variation of groundwater level on different tectonic blocks has little effect on deformation record. The basic work for the further digging of cavity of mountain cave of Xiaxian Seismological Station is carried out, as an earlier stage preparation for the implementing of ＂the tenth-five-year project＂, and the evidence is offered for the further development of this kind of work as well.