黑龙江干流堤防砂性土物理特性试验分析

Heilongjiang River levee sand soil physical properties test analysis

阐述了砂性土堤防的破坏因素和基本物理指标的重要作用,实地调研了黑龙江干流砂性土堤防的分布情况,通过室内试验测量了黑龙江干流堤防填筑料的成分和基本物理特性指标,分析了黑河和八岔两处堤段砂土试样的颗粒粒径分布和在工程上表现出的力学特性。试验表明:对工程而言级配均匀的土产生的孔隙较多,渗透性良好,分布曲线较陡且分布狭窄,不易压实,工程完工后沉降较为明显对工程质量影响较大。

Expounds the damage factors of sand soil embankments and basic physical indexes of the important role of field investigation and research of the distribution of heilongjiang river sand soil embankments, through indoor experiment measured the heilongjiang river embankment filling material composition and basic physical properties index, analysis of the heihe river and eight bifurcation two some sand particle size distribution of the sample and the mechanical properties in the engineering. Experiments show that. for engineering gradation uniformity of the porosity of the soil to produce more, permeability is good, the distribution curve is steep and narrow, not easy compaction, after the completion of the project settlement evident influence the quality of engineering.