我国钻孔应力-应变地震前兆监测台网的现状

Current Situation of the Seismological Networks for Borehole Stress-Strain Precursor Surveilance in China

当今的地震成因理论表明 :地震是地应力 (应变 )积累到一定程度 ,使断层滑动而发生的。由此可见地应力 -应变观测的重要性。我国的钻孔应力 -应变地震前兆监测网 ,是全国地震前兆监测台网的一个组成部分。观测对象包括 :体应变 ,分量应变 ,分量应力和钻孔应力 -应变差应变。文章通过分析调查结果 ,比较详细地介绍了我国的钻孔应力

At present, the theory of seismogenesis shows that when stress (strain) accumulates at a certain level,it will make a fault slip and cause earthquake.Thus it can be seen that stress strain observations are important.The seismological networks for borehole stress strain precursor surveilance in China are a part of the national seismological networks for precursor surveilance. Observational objects include:cubic strain,component strain,component stress and differential strain of borehole stress strain.Through analysing the investigation results,the paper gives a more detailed description of current situation of seismological networks for borehole stress strain precursor surveilance in China.