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分析了堤坝渗流通过温度监测的可行性,提出了基于分布式光纤温度传感的堤坝渗流监测方法,设计了模拟装置;模拟监测系统由堤坝实体模型、渗流控制单元和光纤监测单元组成,采用传统的温湿度计和渗流量计对堤坝模型渗流实施单点监测,并与DiTeSt分析仪的结果比较.堤坝渗流模拟装置可实现不同水温、不同浸润线、不同规格堤坝和堤坝渗流程度的重复模拟,给出了一种野外专用的传感光缆实验结果.研究中的试验结果有利于设计合理的光缆布设和探测方案,同时为堤坝安全监测的量化研究提供有效的手段和平台.“,”Based on the temperature change in an embankment,a seepage flow simulator and monitoring system based on distributed optical fiber sensing are proposed.A simulator is designed that consists of scale model of embankment with definite ite length.seepage flow control cell and monitoring cell.Conventional hygrothermograph and flowmeter are employed in system dispersedly.The results from those conventional instruments will be used to compare with the data from a distributed fibre sensing DiTeSt analyzer.The simulator equipment can monitor various embankments with different boundary conditions,such as temperature,distributions of soakage line and scales.The process of producing seepage pathway and configuration of sensing cable are presented,as well as test results with a field-installed fiber optic sensing cable.The simulator and results are helpful to build reasonable configurations for field real-time monitoring of abnormal seepage flow,which also offer an effective approach to study problems related to a secured embankment.