液压滑模施工从70年代起在我国应用20年来,一直采用φ25钢筋作支撑杆配35kN的滑模千斤顶。由于千斤顶承载能力小,现场配置量达几百台,管理困难,支撑杆刚度小,滑升过程易偏移或失稳而影响工程质量,施工中支撑杆都埋在混凝土中,致使滑模施工费用过高。中建一局科研所最近研制成功SQD-90-35型松卡式千斤顶,并获得了一项专利权。其特点是: 1.用φ48×3.5钢管作大吨位滑模千斤顶相配 Hydraulic slipform construction has been used in our country for 20 years since the 1970s, and φ25 steel has been used as a support rod with 35kN sliding form jacks. Due to the small carrying capacity of the jacks, the on-site configuration quantity reaches several hundred units, the management is difficult, the rigidity of the supporting rods is small, the slipping process is easy to shift or destabilize, and the project quality is affected. The supporting rods are buried in the concrete during the construction, resulting in slipform construction The cost is too high. The research institute of the China Construction Construction Institute recently developed the SQD-90-35 loose-card jack and obtained a patent right. Its characteristics are: 1. Use φ48 × 3.5 steel pipe for large-tonnage sliding mode jack matching