论文部分内容阅读
为了解堆石坝沥青砼心墙与防渗墙联结接头的抗渗性能，采用平面平行渗流模型，研究了在各种工况下，硬、软接头联结方式的接缝抗渗安全性。结果表明：硬、软两种接头方案均满足抗渗性能要求。硬接头构造简单、施工方便，接缝有效抗渗长度较软接头方案长；软接头能较好适应地基不均匀沉陷，减小心墙和防渗墙结合部的应力集中。又以平面辐向流渗流模型作为校核模型试验，所得试验结果应用复变函数理论将其“化引”为平面平行渗流状态下的结果，以进一步验证硬、软接头方案平面平行渗流试验结果的可靠性
In order to understand the impermeability of concrete joints between asphalt concrete core wall and cutoff wall of rockfill dam, the parallel seepage flow model of the rockfill dam was used to study the impermeability of joint under hard and soft joints under various operating conditions. The results show that the hard and soft joint solutions meet the requirements of impermeability. The structure of the hard joint is simple, the construction is convenient, and the effective anti-seepage length of the joint is longer than that of the soft joint; the soft joint can better adapt to the uneven subsidence of the foundation and reduce the stress concentration at the joint part between the core wall and the impervious wall. The plane radial flow percolation model is used as the verification model test. The results of the experiment are “transformed” into the results of parallel parallel seepage by using the theory of complex functions to further verify the results of the plane-parallel seepage test of hard and soft joints The reliability