建立了采用分布式光纤传感技术的模拟堤坝渗漏监测系统，用来人工模拟土坝渗漏，并得到该种情况下测试光纤长度上的应变图，验证了采用分布式光纤传感技术监测土坝的可行性；运用ANSYS软件建立与试验模型相对应的有限元分析模型，通过选择合适单元，简化边界条件，对一定的工况进行加载分析，得出载荷与应变的关系，以及载荷与塌陷土层重量的关系。文中方法和结论有助于进一步定量研究土坝渗漏大小程度和光纤传感器的合适埋设深度。

A monitoring system of seepage and settlement for an earth embankment dam model using fully distributed optical fiber sensing technology is built to simulate seepages in earth dam. The strain curve of the tested optical fiber is obtained from the device in the experiment. The results certify the feasibility of the monitoring system based on distributed optical fiber sensing technology. The analysis model in ANSYS software is set up by simplizing boundary conditions and choosing appropriate calculation units. The relationship between the load applied on the earth dam model and the strain of optical fiber sensors is qualitatively analyzed under some loading cases. The relationship between the load applied on the model and the gravity of collapsed earth is also got. The conclusion is helpful to quantitively judge the degree of seepage and to determine the applicable embedding depth of optical fiber sensors.