倾斜仪基礅影响及零漂分析
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摘要
通过对常熟地震台形变山洞内3套倾斜仪生命周期内的观测资料的对比分析,表明基礅的持荷作用会使混凝土产生徐变,混凝土厚薄不均其徐变能引起基礅倾斜,这种过程是非线性的,其发展呈指数分布,并贯穿仪器的整个生命周期。
Through distinction ananlysis against a life cycle observation data which we got from the three inclinometers in the deformation cave of the Changshu Seismic Station,we can find the basement influence and reasons which caused longterms zero drift.And then we can provide the method for the segregation of quantitatively determine and improve the procedure of instrument installatin.Analysis stated that sustained loading of base stone block will produce creep of concrete.The creeping against different thickness of the concrete will lead to base stone block tilt.The process is non-linear.It shows the development of exponentially distributed and run through the life cycle of the instrument.
Through distinction ananlysis against a life cycle observation data which we got from the three inclinometers in the deformation cave of the Changshu Seismic Station,we can find the basement influence and reasons which caused longterms zero drift.And then we can provide the method for the segregation of quantitatively determine and improve the procedure of instrument installatin.Analysis stated that sustained loading of base stone block will produce creep of concrete.The creeping against different thickness of the concrete will lead to base stone block tilt.The process is non-linear.It shows the development of exponentially distributed and run through the life cycle of the instrument.
引文
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陈永祥.常熟太仓5.1级地震前常熟台地倾斜异常[J].地壳形变与地震,1991,11(4):91-94.
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