TBM组装洞岩壁梁岩台缺陷处理技术研究

Study on Defects Processing Technology of Ledge Beam Rock Bench for TBM Assemble Hole

TBM组装间岩壁梁在施工过程中,由于受地质条件及人为因素影响,导致TBM组装间岩壁梁在施工过程中发生无法成型或岩壁梁岩台存在缺陷,对后序岩壁梁上部吊车轨道安装埋下严重的安全隐患。以吉林引松供水总干线三标TBM组装间岩壁梁为研究背景,对岩壁梁缺陷处理进行了详细分析和研究,提出了岩壁梁岩台缺陷的处理技术,并对研究结果进行了验证,对类似工程有一定的参考价值。

During the construction process of TBM assemble hole ledge beam, because of the geological conditions and artificial influence factors, the ledge beam could not be formed or there would be some defects in rock bench of ledge beam, which were serious security risks to the next installation of crane track in upper part of ledge beam. With the research background of TBM assemble hole ledge beam of the 3rd contract section in main channel of transferring water from Songhuajiang River, the detailed analysis and study were carried out to put forward processing technology of ledge beam defects. The verified research results have some reference values to the similar project.