河漫滩上大面积填土地基的稳定性

Stability of macroarea filled subgrade on alluvial flat

河漫滩地层是冲积洪积作用形成的，地层构造比较复杂。土质不均匀，有透镜体、尖灭、软粘土夹层，地下水位高。在这样的场地上，大面积新填土，碾压后修建建筑物，还是很少见的。本文根据室内试验，现场观测和工程实践的结果，论证了在河漫滩上填土地基的可行性和可靠性并阐述了如何保证地基的稳定性。

Alluvial flat is stratum of alluviation and diluviation , its construction is complex. The soil fabric is nonuniform, and there are lens, thining out, thin layer of soft clay , high ground water table. Taking macroarea filled soil on alluvial flat after compaction as subgrade for building is very few. On the basis of laboratory test, observation in site and consequence in engineering practice, this Paper proved potentiality and reliability and expounded how to assure the stability of filled ground on alluvial flat.