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本文对柘溪大头坝最初两年半的观測资料进行了整理分析,并与理論計算的成果进行了比較. 文中着重分析了靠近大坝基础的垂直应力,并分別对大坝开始蓄水前的施工应力、蓄水过程中及蓄水以后的应力以及坝体表面应力进行了探討. 在应力分析过程中,研究了气溫、水溫、混凝土溫度、水庫水位、混礙土性质、水泥品种以及分縫分块对坝体实測应力的影响。分析結果初步表明,坝体的工作性能是正常的。
In this paper, the observational data of Daxu Dam in the first two and a half years have been analyzed and compared with the results of theoretical calculation.The vertical stresses near the dam foundation are analyzed emphatically, In the process of stress analysis and the surface stress of the dam were discussed.In the process of stress analysis, the effects of temperature, water temperature, concrete temperature, reservoir water level, soil properties, cement types As well as the impact of sub-block on the measured stress of the dam. The results of the preliminary analysis show that the working performance of the dam body is normal.