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为分析结构性对西澳残积土固结性质的影响,使用西澳大学LoadTrac-Ⅲ固结仪对西澳残积土的原状土和重塑土分别进行单向固结试验,研究了西澳残积土的结构性对其压缩曲线和固结系数的影响。结果表明,西澳残积土的原状土压缩曲线位于重塑土的上方,即在某一固结压力下,原状土的孔隙比比重塑土更大;西澳残积土较强的结构性使得原状土的屈服应力大于现场有效应力;西澳残积土的原状土的固结系数远大于重塑土的固结系数;西澳残积土的重塑土的固结系数和固结压力之间呈双曲线关系。研究成果可为西澳当地和国内同类工程的设计与施工提供参考。
In order to analyze the effect of structure on the consolidation properties of residual soil in Western Australia, Uni-directional consolidation tests were carried out on undisturbed soil and remolded soil in Western Australia with LoadTrac-Ⅲ consolidation instrument. The Influence of Soil Structure on Its Compression Curve and Consolidation Coefficient. The results show that the undisturbed compression curves of the remnant soil in Western Australia are located above the remodeled soil, that is, under a certain consolidation pressure, the undisturbed soil has a larger porosity than that of the re-molded soil. The strong structural properties of the remnant soil in Western Australia make the original shape The yield stress of soil is larger than the effective stress in the field; the consolidation coefficient of undisturbed soil in Western Australia is much larger than the consolidation coefficient of remolded soil; the coefficient of consolidation and the consolidation pressure of remolded soil in Western Australia are double Curve relationship. The research results can provide references for the design and construction of similar projects both in Western and Eastern Australia.