废弃渣土造陆的分层填埋方式对比

Comparison of stratified landfills for waste residue land making

填埋造陆是废弃渣土资源化利用的一种渠道。依托深圳海洋新兴产业基地陆域形成工程,利用废弃渣土作为填料进行填埋造陆,由于渣土性质迥异,填埋地基效果差异明显。通过室内模型试验,对比研究渣土分选后分层填埋和未分选混合填埋的效果。试验结果表明:利用废弃渣土进行填埋造陆,首先应对其进行分选,然后对不同性质及颗粒的土进行分层回填,可以有效减小地基产生的不均匀沉降。

Landfilling is a kind of channel for the utilization of waste residue.Relying on the land area formation project of Shenzhen Marine Emerging Industry Base,waste residue is used as filling material for landfilling.Because of the different properties of the residue,the effect of landfill foundation is very different.The effects of sorted stratified landfill and unsorted mixed landfill of residual soil were studied by laboratory model test.The test results show that the waste residue should be sorted first for landfilling.Then the soil with different properties and particles is stratified backfilled.It can effectively reduce the uneven foundation settlement.