【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。更多还原

【Abstract】 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.更多还原