细颗粒含量和加水量对灰岩料压实质量的影响

Experimental study on influence of fine particle content and water quantity on the compaction quality of limestone

试验研究了细颗粒含量(小于5mm颗粒含量)、加水量对灰岩料压实质量的影响,结果表明,在适当条件下,存最佳加水量和最佳细颗粒含量。加水量过少,不能充分润湿料石,压实效果较差;加水量过多,多余水量流失带走细颗粒料而影响压实效果。细颗粒含量过少,压实效果差,加水量对其影响不明显;细颗粒含量过多,存在沉降量较大和孔隙率较低现象,不利坝体稳定和渗水。

The effect of fine particle content（less than 5 mm particle content）and water quantity on the compaction quality of limestone material was studied. The results showed that the optimum amount of water and the best fine particle content were exist under appropriate conditions.If the amount of water added is too small,the limestone material cannot be fully wetted and the compaction effect is poor. If the amount of water is too much,the excess water loss will take away the fine particles and affect the compaction effect. If the content of fine particles is too small,the compaction effect is poor,and the effect of water quantity is not obvious; if the content of fine particles is too much,there is a large amount of settlement and low porosity,which is unfavorable to the stability and seepage of the dam.