CAJ | 학술논문

利用研制的微型十字板剪切仪对重塑后静置一定时间的太湖与白马湖两种疏浚淤泥进行了强度测试，对两种疏浚淤泥的触变特性进行了研究与比较。研究结果表明，两种疏浚淤泥重塑后最初始时间内触变强度的增长最快，随时间增长触变强度的增长变慢，448d 时触变强度随时间的增长趋于稳定。含水率为液限时白马湖疏浚淤泥的触变强度高于太湖疏浚淤泥。触变强度比率与触变强度的变化趋势类似。含水率越小疏浚淤泥触变性越大。含水率为液限时两种疏浚淤泥的触变强度比率与 London 和 Detroit 淤泥接近，小于 Beauharnois 和 Shellhave 淤泥，大于 Horten 淤泥。448d 时除 Beauharnois 淤泥外，其他淤泥的触变强度比率均保持相对稳定。根据定义两种疏浚淤泥均为低灵敏性黏土。
이용연제적미형십자판전절의대중소후정치일정시간적태호여백마호량충소준어니진행료강도측시，대량충소준어니적촉변특성진행료연구여비교。연구결과표명，량충소준어니중소후최초시시간내촉변강도적증장최쾌，수시간증장촉변강도적증장변만，448d 시촉변강도수시간적증장추우은정。함수솔위액한시백마호소준어니적촉변강도고우태호소준어니。촉변강도비솔여촉변강도적변화추세유사。함수솔월소소준어니촉변성월대。함수솔위액한시량충소준어니적촉변강도비솔여 London 화 Detroit 어니접근，소우 Beauharnois 화 Shellhave 어니，대우 Horten 어니。448d 시제 Beauharnois 어니외，기타어니적촉변강도비솔균보지상대은정。근거정의량충소준어니균위저령민성점토。
The shear strength of Taihu lake and Baimahu lake dredged slurries are tested with miniature shear vane apparatus at different stewing times after remolded.The thixotropy of two kinds of dredged slurries is studied.Test result shows that a sharp thixotropic strength increase at the first time after remolded is recorded.Then the thixotropic strength still increases,but at a slower rate.The increase of the thixotropic strength at 448d tends to be stable.The thixotropic strength of Taihu lake dredged slurries is higher than that of Baimahu lake at the liquid limit. The variation trend of thixotropic strength ratio is similar with the thixotropic strength.The thixotropy of dredged slurries increases with decreasing water content.The thixotropic strength ratio of the two kinds of dredged slurries at the liquid limit is close to that of the London and Detroit dredged slurries.It is less than that of Beauharnois and Shellhave dredged slurries.It is greater than that of Horten dredged slurries.The thixotropic strength ratio of the others besides the Beauharnois dredged slurries keeps stable at 448d.The two kinds of dredged slurries are low sensitivity clays according to the definition of the clays sensitivity.