北方沿海路基土工程特性试验研究

Experimental Study on the Characteristics of Subsoil Engineering in Northern Coastal Roadbed

摘要: 针对北方沿海路基所处环境复杂，在具体设计和施工时超出既有规范与经验的现状，研究北方沿海路基土的相关特性有着重大的工程意义。取北方沿海路基土为试样进行一系列土工试验，测出土体一系列反映土体物理力学性质的指标。研究表明，部分北方沿海路基土属于粗粒土，含水量高，抗剪强度低，透水性好，压缩性差，固结速度较快。可为北方沿海路基土的改良、加固提供依据，也为北方沿海路基沉降的计算，路基承载力的计算奠定了基础。

Abstract: Because the north coastal embankment environment is complex, with specific design and con-struction beyond the status quo of the standard and experience, research on the northern coastal related properties of subgrade soil has important engineering significance. A series of geotechnical tests were carried out for the northern coastal subgrade soil, and a series of indicators reflecting the physical and mechanical properties of soil were measured. The research shows that some northern coastal embankments are coarse grained soils with high water content, low shear strength, good permeability, poor compressibility and fast consolidation. It can provide the basis for the improvement and reinforcement of the northern coastal subgrade soil, and also the calculation of the settlement of the northern coastal subgrade and the calculation of the bearing capacity of the subgrade.