<p class="0abstract"><span lang="EN-US">To conduct optical fiber monitoring rock slide model test and optical fiber monitoring of steel concrete interface slip model test, the large triaxial shear test of geotechnical engineering </span><span lang="EN-US">wa</span><span lang="EN-US">s used. First, the data of sliding distance and optical loss and their dynamic range </span><span lang="EN-US">we</span><span lang="EN-US">re obtained. Second, the slide distance and fiber loss relation curve and the fitting equation </span><span lang="EN-US">we</span><span lang="EN-US">re worked out. Finally, the typical applications of optical fiber sensing technology in Rock Engineering (high slope engineering, rock foundation of Dam Engineering) slope stability and geological disaster monitoring </span><span lang="EN-US">we</span><span lang="EN-US">re put forward.</span><span lang="EN-US">The results showed that optical fiber sensing was very sensitive, and the loss value was 30 to 50dB. The dynamic range of rock slide monitoring fiber was 3 to 3.5mm, and the dynamic range of the interface slip monitoring fiber was 1.6mm. Thus, the sensing system can detect the sliding process of the interface between the concrete and the steel plate. It provides some reference for the sliding monitoring of the composite materials.</span></p>
The test effect evaluation of distributed optical fiber sensing technology applied to stress test of bored pile
