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该文运用灰色关联分析方法探讨了影响软土地基承载力大小的各种因素。结果表明 :轻型动力触探击数 (N1 0 )对承载力大小变化最为敏感 ,施工过程中用于检测软土地基承载力既简便又较准确。其次为软土的天然密度 (ρ)、压缩模量 (Es)、粘聚力 (c )和塑性指数 (Ip) ,在室内试验中可优先利用这些参数来确定承载力大小。而天然含水量 (w)、孔隙比 (e)和液性指数 (IL)相对较不敏感。
This paper uses gray relational analysis method to explore various factors affecting the bearing capacity of soft soil foundation. The results show that light strike number (N1 0) is the most sensitive to the change of bearing capacity. It is simple and accurate to detect the bearing capacity of soft ground during construction. Followed by the natural density (ρ), compressive modulus (Es), cohesion (c) and plasticity index (Ip) of soft soil. These parameters can be preferentially used in laboratory tests to determine the bearing capacity. The natural water content (w), porosity ratio (e) and liquid index (IL) are relatively insensitive.