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近几年来出现的双滑工艺,是烟囱滑模施工新的改革。对内外筒壁都是混凝土(内筒壁是耐热混凝土)的烟囱同时滑升,这种滑升工艺叫做双滑。双滑较单滑有以下显著特点: 1.双滑施工工期比单滑缩短一倍,劳动效率提高60～80％; 2.双滑只搭设一次管架,而单滑需搭设两次管架(即烟囱内外部的管架); 3.双滑内外筒壁同时支撑工作台,增加了工作台的稳定性,对提高滑升速度,保证安全性,提供了有利条件。
The double slippery process that has emerged in recent years is a new reform of the chimney slipform construction. The chimneys of the inner and outer cylinder walls are all concrete (the inner cylinder wall is a heat-resistant concrete) that slides up at the same time. This sliding process is called double slip. The double slippery slippery slip has the following remarkable features: 1. The double slippery construction period is twice as long as the single slippery, and the labor efficiency is increased by 60 to 80%; 2. The double slippery erects only one pipe rack, while the single slippery erects two pipe racks. (ie the internal and external chimneys of the chimney); 3. The double-sliding internal and external cylinder walls support the worktable at the same time, which increases the stability of the worktable, and provides favorable conditions for increasing the speed of sliding and ensuring safety.