第二十冶金建设公司第一建筑工程公司在其烧结厂80米烟囱工程上第一次采用了无井架液压滑升模板施工方法。 该烟囱底盘直径8.76米,上口内径5.25米;上下每间隔10米有环形内衬牛腿一道; The first construction company of the 20th Metallurgical Construction Company used the hydraulic gliding formwork construction method without derrick for the first time in the 80m chimney project of its sintering plant. The chimney chassis has a diameter of 8.76 meters and an upper diameter of 5.25 meters; there is an annular lining of cattle and legs at intervals of 10 meters above and below;