论文部分内容阅读
随着火电厂单机容量增大,6000m。以上_大型冷却塔也跟着问世。传统的悬挂式三角架施工已不相适应,主要有如下五点. 1.施工6000m~2以上大型冷却塔的竖井架高度达165m,用现有竖管搭设井架整体稳定性不够. 2.采用竖井架作垂直运输工具,浪风绳对场地布置、交通运输均带来不利因素. 3. 采用十字找中法来确定筒壁半径误差较大. 4. 悬挂式三角架施工劳动强度大,安全感差.. 5. 模板系统上部稳定性差.在浇灌混凝
With the increase of stand-alone capacity of thermal power plants, 6000m. Above, large cooling towers also followed. The construction of conventional suspended tripods has been inconsistent with the following five major issues. 1. The height of a vertical mast of a large cooling tower with a capacity of 6,000 m2 or more is 165 m. The overall stability of erecting a derrick with existing risers is insufficient. The vertical derrick is used as a vertical transportation tool, and the wind wave rope brings unfavorable factors to the site layout and transportation. 3. The cross-finding method is used to determine the error of the cylinder wall radius. 4. The construction of the suspended tripod is labor-intensive and safe. Bad feeling.. 5. The upper part of the stencil system is poor in stability.