粗粒含量对砾质土工程性质影响的研究

 在重型击实或碾压后，砾质土的工程性质主要受粗粒含量的不同而变化。本文结合水布垭高心墙堆石坝防渗材料的研究，分析了粗粒含量对砾质土压实性、渗透性、压缩性、应力应变关系参数的影响。研究表明：砾质土压实性和渗透性除与粗粒含量有关外，还与细料特性有关；相同压实条件下，强度参数与P5关系密切。

Influence of Coarse-Grained Content on Engin eering Properties of Gravelly Soil

After heavy tamping or compaction by rolling,the engineering properties of gravelly soil change with different coarse grained contents.Associating with the study on seepage proof materials of high core rock filled dam for the Shuibuya Project ,the influences of the coarse grained contents on compactibility,permeablity,compressibility and stress strain relation parameters of gravelly soil are analyzed. The results show that,besides the influence of coarse grained content,the compactibility and permeability of gravelly soil also relate to the fine stuffing;and under the same compacting condition,the strength parameters are close related to P 5.