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碾压混凝土由于采用逐层碾压的施工方法，致使所形成的大体积混凝土在竖向和水平向具有不同的弹性常数。本文以龙滩碾压混凝土重力坝为工程实例，研究了上述弹性特性差异对坝体静、动力分析所产生的影响。研究结果表明，碾压混凝土竖向弹模的降低对自重、水压等主要静载所产生的应力分布影响不大，但对坝踵、坝趾局部控制性应力值将会产生一定的影响；对坝体的自振振型特性影响不大，但对自振频率值有明显影响。
Roller compacted concrete due to the use of layer by layer rolling construction method, resulting in the formation of large volume concrete in the vertical and horizontal have different elastic constants. In this paper, the Longtan RCC gravity dam is taken as an example to study the influence of the difference of elastic characteristics on the static and dynamic analysis of the dam. The results show that the decrease of vertical elastic modulus of roller compacted concrete has little effect on the stress distribution caused by the main static load such as self-weight and water pressure, but will exert a certain influence on the locally-controlled stress value of dam heel and dam toe. It has little effect on the self-vibration mode characteristics of dam, but has obvious effect on the natural frequency.