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一、前言以礼河一級电站土坝,心墙采用石灰岩风化洪积紅粘土填筑。原設計根据200吨-米/立方米功能的击实試驗成果,要求填筑干容重1.55克/立方厘米,合格率90%以上,其相应的填筑含水量为21～24%,用15吨羊足碾,鋪土厚度30厘米(包括下层半压实土在内),压24遍,每层压实厚度8～10厘米,料場天然含水量一般在30%左右,用农业机耕方法水平逐层开采,經翻晒碎土后上坝,工序多,效率低。1964年1
First, the preface to the Li River level earth dam, the heart of limestone limestone flood red clay fill. The original design complies with the compaction test results of 200 ton-m / m 3 function and requires filling of dry bulk density of 1.55 g / cm 3 with a passing rate of over 90% and a corresponding filling water content of 21-24% Sheep foot grind, pavement thickness of 30 cm (including the lower semi-compacted soil, including pressure), pressure 24 times, each compacted thickness of 8 to 10 cm, yard natural water content is generally about 30%, with agricultural tillage method level Layer by layer mining, after sunshine and crushing on the dam, more processes, low efficiency. 1964 1