Tunnel Deformation Saib Xyuas

Cov yam ntxwv ntawm lub qhov dej muaj qhov cuam tshuam ncaj qha rau kev siv tom ntej thiab kev nyab xeeb, yog li kev saib xyuas qhov deformation yog qhov tseem ceeb heev. Laser ntau yam tuaj yeem paub qhov kev ntsuas siab ntawm qhov kev sib haum xeeb. Txoj kev no teev cov khoom siv laser emitting ntawm ob sab ntawm lub qhov, thiab sau cov ntaub ntawv los ntawm ob lub kaum sab xis ntawm kev ntsuas qhov deb thiab kev taw qhia raws li cov teeb liab laser, kom paub txog lub sijhawm saib xyuas ntawm qhov deformation.