CAJ | 학술논문

分散性土具有遇水分散流失的特性，容易造成堤坝等水利工程的破坏。采用双比重计、针孔、碎块、孔隙水可溶性阳离子和交换性钠离子百分比等5种试验方法，对宁夏某水电站大坝防渗土料分散性进行了研究分析，认为该防渗土料属于过渡性土。但是值得注意的是，4组土样的权重分析中分散性占的比重比较大，在设计中应注意当土样周围环境发生变化时（如河水水质）对土样分散性判别结果的影响。
분산성토구유우수분산류실적특성，용역조성제패등수리공정적파배。채용쌍비중계、침공、쇄괴、공극수가용성양리자화교환성납리자백분비등5충시험방법，대저하모수전참대패방삼토료분산성진행료연구분석，인위해방삼토료속우과도성토。단시치득주의적시，4조토양적권중분석중분산성점적비중비교대，재설계중응주의당토양주위배경발생변화시（여하수수질）대토양분산성판별결과적영향。
With dispersion characteristics ,dispersive soil lost with water ,and likely to cause the destruction of dams and other water projects .Using the double-hydrometer test ,pinhole test ,crumb test ,pore water soluble salt cation test and the percent-age of exchangeable sodium ions test ,the dispersibility of soil samples obtained from a hydraulic power plant in Ningxia were studied .It was showed that the soil samples were the transitional soils .But it was worth noting that the dispersive weighting analysis of soil samples were relatively more ,the attention should be paid on the design if the surrounding environment chan-ges ,such as river water .