汤坝防渗土料物理力学性能研究

Research on Physical and Mechanical Properties of Impervious Soil Material in Tangba Soil Yard

汤坝料场防渗土料储量大、性能较优,大坝心墙填筑采用了直接上坝料和偏粗、偏细土料掺配形成的掺配料上坝填筑。通过对防渗土料物理力学性质研究表明,土料具有良好的压实性,整体防渗效果较好。用于掺配的偏粗、偏细料相互结合性好,直接上坝料与掺配料性能接近,可混合使用。

Because the reserve of impervious soil material in Tangba soil yard is abundant and the performance of soil is better, the soil material in Tangba soil yard is selected as the impervious soil to construction the earth-rock dam of Changheba Hydropower Station. The earth-rock dam is constructed by natural soil material and artificial mixture of coarser and finer soil material. The physical and mechanical properties of soil materials are studied. The results show that the compaction property and impervious property of soil materials are better, the coarser and finer soil materials in artificial mixture have a good binding, and the properties of natural soil material and artificial mixture are basically consistent to each other which can be mixed together to construct dam.