砾石土料含砾量及含水率动态精准调整技术研究

Research on Dynamic Precision Adjustment Technology of Gravel Content and Water Content of Gravel Soil Material

两河口水电站砾石土心墙堆石坝,土料来源复杂,天然含砾量及含水率波动范围大,对大坝心墙施工质量影响较大,因此提出了砾石土含砾量及含水率动态精准调整技术。通过试验检测和计算分析,动态调整掺砾量及补水量,掺配后的砾石土料P5含量和含水率稳定受控。试验检测成果验证了该动态精准调整技术可行性和有效性。

The gravel soil core wall rockfill dam of Lianghekou Hydropower Station has complex soil sources and large fluctuation range of natural gravel content and water content,which has a great influence on the construction quality of the dam core wall.Therefore,a dynamic precise adjustment technology for gravel soil content and water content is put forward in this paper.Through test detection and calculation analysis,the amount of added gravel and water supply are adjusted dynamically,and the P5 content and water content of the mixed gravel soil are controlled stably.The test results verify the feasibility and validity of the dynamic precise adjustment technology.