Confirmation and verification for blend technique for impermeable soil material of core zone with environmentally-friendly, low cost and mechanical stable

研究了利用灌溉池底淤泥质土、缺乏细粒级配的老堤防材料、粉煤灰、矿渣、水泥等配制核心区防渗土料的新掺混技术，从无侧限抗压试验和渗透试验结果看，新掺合料完全可以用作核心层材料。此外，在一个实际的灌溉路堤施工现场，使用大型搅拌土机进行了现场试验。研究发现，这些大型机器可用于获得不透水的岩芯材料。

This study shows new blending techniques for producing impermeable soil material for core zone, using the muddy soil deposited in the bottom of irrigation ponds, the old banking material lacking fine-grain fraction, fly ash, and granulated blast furnace slag, cement, etc. Judging from the results of unconfined compression tests and permeability tests, it was found that the new blending material can be used for core zone material sufficiently. Additionally, in an actual irrigation embankment construction site, field tests were conducted using large soil mixing machines. It was found that these large machines were useful for getting impermeable core material.