论文部分内容阅读
本刊讯(通讯员李强)中铁十四局集团五公司东毛高速项目部利用隧道自动喷淋养护台车,改善施工质量,给隧道施工带来了良好的综合效益。据了解,项目部施工的隧道属于长大隧道,随着洞内不断掘进,隧道内环境湿度明显不稳定。二衬施工后,衬砌面水分过早蒸发引起收缩变形,严重者导致衬砌面干缩裂纹,不仅严重影响混凝土的耐久性、整体性,还降低了衬砌面的外观质量。为解决这一问题,项目部创造性地改造了一辆可以自动行走的喷淋养护
Benjixun (Correspondent Li Qiang) The East Mao Expressway project department of the five companies of the 14th China Railway Group Corporation made use of the tunnel automatic sprinkler maintenance trolley to improve the construction quality and bring good comprehensive benefits to the tunnel construction. It is understood that the construction of the tunnel project belongs to the long tunnel, with the continuous tunneling, tunnel environment humidity was significantly unstable. After lining construction, premature evaporation of lining moisture causes shrinkage and deformation, leading to shrinkage cracking of lining in severe cases. This will not only seriously affect the durability and integrity of concrete, but also reduce the appearance quality of lining. In order to solve this problem, the project department creatively renovated a spray can be automatically run care