Use of the DCP test for compaction control of staged dikes in mining tailings dams

Rem: Revista Escola de Minas

Lincoln Ribeiro Maia De Resende²  Waldyr Lopes De Oliveira Filho¹  Christianne De Lyra Nogueira¹ 

[1] ,Universidade Federal de Ouro Preto PPGEM ,Brazil

关键词: Raise of staged dikes;    tailings dam;    compaction control;    DCP;    Alteamento de aterros;    barragens de rejeito;    controle de compactação;    DCP;   

DOI  :  10.1590/S0370-44672013000400014

来源: SciELO

【 摘 要 】

An alternative method for quality control of earthworks in mining tailing dams is described in this article. It is composed by a penetrometer, known by the acronym DCP (Dynamic Cone Penetrometer), and is used primarily in road construction (quality assessment of pavement layers). With this apparatus, strength measurement of superficial layers of natural and compacted soils can be performed, including mine sand tailings, in a fast and efficient manner. The instrument was successfully used in the construction control of an iron ore mining tailings staged dam in the Quadrilatero Ferrifero, in Minas Gerais State, and the results showed distinctly effective densification of the embankment compacted layers, but with a sort of irregularity in their spatial distribution. In addition, field control using the traditional core-cutter method was also performed for comparison between both techniques.

【 授权许可】

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