大梁水库土石坝防渗土料设计与压实

在黄土区修筑碾压式土石坝，黄土是其首选的筑坝材料，由于黄土上有湿陷性和压实性能差等特点，土料设计比较复杂。本文以大梁水库土坝设计与压实为例，通过试验分析研究，总结出黄土的部分物理特性和施工方法，可供类似工程设计或施工参考。

Design of Seepage-preventing Soil Material for the Rolled Fill Dam of Daliang Reservoir And Its Compaction

The loess would be an embankment material firstly to be chosen as the seepage-preventing soil material when building the rolled fill dam in the loess area.In this paper,some physical and mechanical properties of the loess such as the compaction,shear strength,collapsibility,compressibility,breaking strength,and impermeability in the borrow area near the dam site had been tested mainly in laboratory in design stage,and therefore,the design parameters(dry density,water content,etc.)and the embankment zoning(see Fig.1) of the soil were determined.The field compaction test how to meet the design parameters was made additionally.The loess approached are Q 3 and Q 2,belonging to the epipleistocene and the miocene series,quarternary system respectively.