流态固化淤泥可用于基坑肥槽、道路路基等浇筑工程，其流动性是保障施工质量的重要因素，但不同液限新拌固化淤泥流动性缺乏系统研究，开展相关研究具有重要实践意义。通过对6种不同液限（wL = 27.2%～62.0%）淤泥与固化淤泥开展流动度与黏滞性试验，揭示了固化材料掺量、含水率、液限三因素对淤泥和新拌流态固化淤泥流体流变特性的影响规律，并建立了流动度和黏滞剪切力的计算方法。研究表明：固化材料的掺入使新拌固化淤泥流动性下降明显，但掺入量超过5%后，降低幅度减缓，超过10%后，流动度基本保持不变；初始含水率越大，新拌固化淤泥流动性越好；含水率在wL附近时，固化淤泥流动度变化较小，超出wL一定倍数后，其流动度才明显增大，且wL越小，该数值越大，当含水率超过一定限值后，流动度增速减缓，该限值与土体wL呈正相关关系。在此基础之上，提出了淤泥和新拌淤泥固化土流动程度与淤泥wL间的幂函数关系，建立了不同wL新拌固化淤泥剪切力双曲计算模型。成果可为新拌固化淤泥的设计和施工提供参考。Fluidizedsolidified mud can be used in foundation trench

road base and other castingprojects

its mobility is an important factor to ensure the constructionquality

but the lack of systematic research on the mobility of freshly mixed solidifiedmuds with different liquid limits

it is of great practical significance tocarry out the relevant research. In this study

flowability and viscosity testswere conducted on muds and freshly mixed fluidized solidified muds with sixdifferent liquid limits (wL = 27.2%-62.0%)

revealing the influence of curing materialcontent

water content

and liquid limit on the rheological properties of mudsand freshly mixed fluidized solidified muds

and methods for calculating the flowability and viscous shear force were developed.The study shows that: the adding of curing materials makes the fluidity offreshly mixed solidified mud decrease obviously

but the decrease slows downafter the dosage exceeds 5%

and the fluidity basically stays unchanged afterexceeding 10%; the larger the initial water content is

the better the fluidityof freshly mixed solidified mud is; the less change in fluidity were observedin the solidified mud when the water content is near wL

andthe fluidity of the solidified mud increases obviously after exceeding acertain number of times of wL; the smaller the wL is

the larger the value is; but when the water content exceeds a threshold

thegrowth rate of flowability slows down

and the flowability is positivelycorrelated with the wL. On this basis

a power functionrelationship between the flowability of mud/freshly-mixed solidified mud and wL was proposed

and a hyperbolic model for computing shear force of freshly mixedsolidified mud with different wL was established. The resultscan provide a reference for the design and construction of freshly mixed solidifiedmud.