基于DTS的岩溶洼地渗漏室内试验研究  

Laboratory Experimental Study on Seepage in Karst Depression Based on DTS

作　　者：郭法旺 彭浩 毛鹏 朱宝强 Guo Fawang;Peng Hao;Mao Peng;Zhu Baoqiang(Guiyang Survey and Design Institute of China Power Construction Group Co.,Ltd.,Guiyang 550081,Guizhou)

机构地区：[1]中国电建集团贵阳勘测设计研究院有限公司,贵州贵阳550081

出　　处：《陕西水利》2024年第1期129-132,共4页Shaanxi Water Resources

基　　金：中国电建集团贵阳勘测设计研究院有限公司重大科研项目(YJZD2020-02)。

摘　　要：岩溶洼地是修建水库的理想场所,但岩溶洼地多位于岩溶强发育区,存在岩溶渗漏难题。在各种渗漏监测方法中,分布式光纤温度传感技术(DTS)有着显著优势。通过分析两类光缆在相同渗漏条件下的温度表现规律、不同介质和加热功率下可加热型光缆的温度特征值、可加热型光缆的渗漏感知范围,验证将加热光缆沿PVC管螺旋缠绕工艺提高渗漏感知能力的效果。研究成果可为DTS在岩溶洼地渗漏监测的应用提供参考。Karst depression is an ideal place for the construction of reservoirs,but most of the karst depressions are located in the strong karst development area,and there is a problem of karst leakage.Among various leakage monitoring methods,distributed optical fiber temperature sensing technology(DTS)has significant advantages.By analyzing the temperature performance law of the two types of optical cables under the same leakage conditions,the temperature characteristic value of the heatable optical cable under different media and heating power,and the leakage sensing range of the heatable optical cable,the effect of improving the leakage sensing ability of the heated optical cable along the PVC pipe spiral winding process is verified.The research results can provide reference for the application of DTS in seepage monitoring in karst depressions.

关 键 词：分布式温度传感(DTS) 岩溶洼地库盆渗漏 模型试验 温度分布 感知能力 

分 类 号：TV697.32[水利工程—水利水电工程]