论文部分内容阅读
采用无井架液压滑模施工钢筋混凝土烟囱,垂直运输系统的罐笼和柔性滑道是输送材料和施工人员的主要设施。但在施工中,一般都利用链式起重机、绞磨和卷扬机等机具来松紧滑道,这不仅是操作频繁,劳动强度大、速度慢,而且对滑道所施加的拉紧力大小也无法控制。若对滑道施加的拉紧力过大或过小,都会造成操作平台变形,千斤顶支承杆失稳或罐笼在运行中发生共振和摆动。因此,它是直接关系到滑模施工速度、质量和安全的关键问题。鉴于上述问题,在鞍钢七号高炉百米烟囱滑模施工中,试制并应用了液压自动拉紧和松开柔性滑
The construction of a reinforced concrete chimney using a derrick-free hydraulic slipform, cages and flexible slideways for vertical transport systems are the main facilities for the transport of materials and construction personnel. However, in construction, chain cranes, twisting mills and hoists are generally used to loosen the slides. This is not only frequent operation, but also has great labor intensity and slow speed, and the size of the tension force exerted on the slides cannot be controlled. . If the tension force exerted on the slideway is too large or too small, the operation platform may be deformed, the jack support rod may become unstable, or the cage may resonate and swing during operation. Therefore, it is a key issue that directly affects the speed, quality, and safety of slipform construction. In view of the above problems, during the construction of the 100m blast furnace chimney slipform of No. 7 blast furnace in Anshan Iron & Steel Co., Ltd., a hydraulic automatic tensioning and loosening of the flexible slide was trial-produced and applied.