一种短基线硐体应变仪
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摘要
实验发现,在硐体完整基岩1m深处,日温度波动只有硐体空气中日温度波动的的百分之一左右。将1m基线的硐体应变仪,用自应力水泥耦合在硐体1m深度的基岩槽中,可以提高硐体应变仪的稳定性和高频性能。
Through theoretical calculation,it is found that within the deep bedrock of one meter deep,daily temperature fluctuations is only one percent of daily temperature fluctuations of air in cave.A meter long unicom tube tiltmeter is coupled with the self-stressing cement in the deep bedrock of one meter in the cave,the stability and high frequency performance of the volume strain meter in tunnel can be improved.
引文
1吕宠吾,等.SS-Y型短基线伸缩仪及其标定装置[J].地壳形变与地震,2001,(3):82-88.
    2苏恺之.地应变测量方法[M].北京:地震出版社,1978.
    3苏恺之,等.钻孔地应变观测新进展[M].北京:地震出版社,2003.

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