CAJ | 학술논문

为了研究时域反射技术(TDR)对高电导率、高有机质含量的填埋垃圾的适用性,设计并制作了探针表面镀环氧树脂基复合材料和套PVC管的TDR探头,测试并评估了各个探头测试介质含水量的电导率适用范围和感应区域范围,同时推荐了95%探针长度套PVC热缩管的探头作为最优选择。对所选探头进行标定后,安装在填埋自制新鲜垃圾和现场老垃圾的模型单元中,测试渗滤液入渗过程中和入渗后的含水量变化,结果表明：经表面处理后的 TDR 探头能够有效测试高有机质含量填埋垃圾的含水量,且能够对瞬态渗流过程引起的含水量变化迅速响应；当渗流达到稳定时,TDR测试的含水量结果与水量平衡分析结果较为接近,绝对误差在5%以内。
위료연구시역반사기술(TDR)대고전도솔、고유궤질함량적전매랄급적괄용성,설계병제작료탐침표면도배양수지기복합재료화투PVC관적TDR탐두,측시병평고료각개탐두측시개질함수량적전도솔괄용범위화감응구역범위,동시추천료95%탐침장도투PVC열축관적탐두작위최우선택。대소선탐두진행표정후,안장재전매자제신선랄급화현장로랄급적모형단원중,측시삼려액입삼과정중화입삼후적함수량변화,결과표명：경표면처리후적 TDR 탐두능구유효측시고유궤질함량전매랄급적함수량,차능구대순태삼류과정인기적함수량변화신속향응；당삼류체도은정시,TDR측시적함수량결과여수량평형분석결과교위접근,절대오차재5%이내。
The aims of this experimental study were to evaluate the applicability of coated TDR probes in highly conductive MSWs with high organic content. TDR probes with identical geometry but different kinds of coating, i.e., coating with an epoxy-resin composite and PVC tube, were produced. The effect of the coating treatment on the dielectric permittivity measurement and the influence area of the TDR probes were evaluated. Based on the evaluation, the probe with a PVC coating on the 95%of the rod length was recommended for the application in MSWs. The recommended TDR probe was calibrated and installed in two laboratory cells, i.e., one containing fresh MSWs and the other containing decomposed MSWs. The change of moisture content in the wastes was measured during and after leachate infiltration into the cells. The measurements demonstrated that the recommended coated TDR probe was effective in measuring the moisture content in the MSWs with a high organic content and was able to capture the hydraulic response of MSWs with transient seepage. The measurement of moisture content at the steady state condition was close to the result that calculated from water balance analysis, and the maximum difference was less than 5%.