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常德烟叶复烤厂锅炉房的烟囱,上口内径1.2m,标高±0.000处外径5.44m,高80m,混凝土强度C18,倒锥筒首,标高73m处有挑出900mm的混凝土检修平台,内衬为粘土耐火砖砌筑。如采用过去惯用的液压滑动模板施工筒壁,并配外井架上料或用爬模、移置模板等方法,不仅投入费用多、设备利用率低、投资回收期长、经济效益差,且原有滑模设备难适应此烟囱施工,因此决定对公司原有滑模的随升井架和吊笼等进行改进后施工。仅用钢材4t及100多个工日,赶在冬季到来之前完成了任务。比其它方法节省90%以上的模具及垂直运输设备投入费,共节省开
The chimney of the boiler room of Changde Tobacco Rejuvenation Factory has an upper diameter of 1.2m, an outer diameter of 5.44m at an elevation of ±0.000, a height of 80m, a concrete strength of C18, an inverted cone, and a 900mm concrete overhaul platform at a height of 73m. Lined with clay refractory bricks. For example, the use of the conventional hydraulic slide formwork to construct the wall of the drum, and the use of external derricks for feeding or using climbing dies and displacing the stencils, etc., not only costly inputs, low equipment utilization, long investment recovery period, poor economic efficiency, and Slipform equipment is difficult to adapt to this chimney construction, so it was decided to improve the construction of the company’s original slipform with the derrick and cage. With only 4 tons of steel and more than 100 working days, the task was completed before the winter arrived. Save more than 90% of the cost of mold and vertical transportation equipment than other methods, save altogether