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Studies on the evaluation of loosening mechanism of tunnel face by using field measurements

机译：野外实测评估巷道松动机理的研究

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It is quite important to evaluate the stability of tunnel face quickly in order to execute the tunnelling work for economically and safely. To evaluate the tunnel face stability, the field measurements and the tunnel face observations are powerful tooos. In this paper, the displacement measurement of tunnel face was carried out by using the high accuracy Laser Doppler Displacement Meter. And we estimated the modulus of elasticity of the tunnel face using various methods. As a result, the modulus of elasticity estimated by the convergence measurements was smallest value than the others. Because the convergence measurements included the effects of the tunnel face loosening directly. As a result, we could estimate the loosening level of the tunnel face by the displacement velocity.

机译：为了经济，安全地进行隧道施工，快速评估隧道工作面的稳定性非常重要。为了评估隧道工作面的稳定性，现场测量和隧道工作面的观测也很有效。本文采用高精度激光多普勒位移仪对隧道工作面进行位移测量。然后，我们使用各种方法估算了隧道工作面的弹性模量。结果，通过会聚测量估计的弹性模量比其他的最小。因为收敛测量包括隧道面直接松动的影响。结果，我们可以通过位移速度来估算隧道面的松动程度。

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《Field measurements in geomechanics》|1999年|p.423-426|共4页
会议地点 Singapore(SG);Singapore(SG)
作者
A.Sano; M.Shinji; Y.Okabe;
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原文格式 PDF
正文语种 eng
中图分类地球物理学;
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Studies on the evaluation of loosening mechanism of tunnel face by using field measurements

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