老黏性土地基承载力的可拓学综合评测方法

Extenics comprehensive evaluating and testing method of foundation bearing capacity of old clay soil

本文综合考虑天然含水率、质量密度、压缩模量、孔隙比、液性指数和锥尖阻力等多种因素对老黏性土地基承载力的影响,利用可拓学建立老黏性土地基承载力评测模型,并进行综合评测.结果表明,评价等级所对应的老黏性土地基承载力的大致范围:1级、2级≥450 kPa,3级为350 kPa^450 kPa,4级、5级≤350 kPa.该老黏性土地基承载力分级也为其他地区老黏性土地基承载力的所属级别提供了借鉴.评价等级的划分仍需依赖大量的统计数据,今后应更多地开展这方面的工作,积累数据和经验,使之更加完善.

Considering the factors of natural moisture content,mass density,compressive modulus,void ratio,liquidity index and cone tip resistance on the bearing capacity of old clay soil foundation,the old stickiness is established by the theory of extenics.The land-based bearing capacity extension evaluation model and comprehensive evaluation.The results show that the approximate range of the bearing capacity of the old cohesive soil foundation corresponding to the evaluation grade:grade 1,grade 2≥450 kPa,grade 3 is 350 kPa^450 kPa,grade 4,grade 5≤350 kPa.The grading of the bearing capacity of the old cohesive soil foundation also provides a reference for the level of the bearing capacity of the old cohesive soil foundation in other regions.The division of evaluation grades still needs to rely on a large amount of statistical data.In the future,more work should be carried out in this aspect,and data and experience should be accumulated to make it more perfect.