超高变径烟囱工程无井架液压滑模施工技术.pdf

施工技术 2012年3月下 64 CONSTRUCTION TECHNOLOGY 第41卷第361期 超高变径烟囱工程无井架液压滑模施工技术 王纯岩 (中国二十冶集团有限公司，上海201900) [摘要]结合梅钢1780热轧项目烟卤工程实例，从施工设施、施工工艺到关键工序的质量控制，对超高变径烟卤工 程施工所采用的无井架液压滑模施工技术进行了详细阐述.重点介绍了施工平台组装、荷载试验、简身及内衬施 工、航空标志施工、操作平台拆除等施工工艺.同时指出应重点控制模板收分时中心点校正、中心位移、平台扭转 失稳、混凝土水平裂缝及断裂、混凝土表面缺陷等，并给出解决措施. [关键词]烟卤；模板；液压滑模；无井架；平台；施工技术 [中图分类号]TU755.2 [文献标识码]A [文章编号]1002-8498(2012)06-0064-06 Construction of Non-derrick Hydraulic Sliding Formwork of Super-high Variable Diameter Chimney Engineering Wang Chunyan (China MCC20 Group Co. Lad.Shanghai 201900 China) Abstract:Combining with the practice of chimney engineering in Meisteel 1780 hot rolling project the construction technology of non-derrick hydraulic sliding formwork of super-high variable diameter chimney engineering is indicated in detail from construction facilities construction technology and quality control for key sequence.The construction technologies of platform assembly loading test construction for tube body liner and aviation mark operation platform demolition are introduced.It is pointed out that the centre point correction while formwork closing and opening center displacement platform instability horizontal cracks and surface defects of concrete should be controlled mainly and corresponding solving methods are put forward. Key words:chimneys;formwork;hydraulic sliding formwork;non-derrick;platform;construction 1工程概况 砖内衬，提升架外挂滑模施工混凝土. 梅钢1780热轧工程有3幢烟肉，高度均为2筒身施工设施介绍 105m 上口内径为4.0m 筒身壁厚由360~160mm 筒身选用无井架液压滑模施工工艺，施工设施 沿高度呈阶梯变化，采用C30混凝土浇注...