论文部分内容阅读
四川省丹棱县水泥制品厂在西南市政工程设计院、四川省水泥制品厂等单位的帮助与支持下,采用悬辊工艺成型钢筋混凝土滤水管和井壁管,获得成功。五年来,在凿井工程中使用该管材1万多米,效果良好。滤水管、井壁管的规格尺寸与辊轴、钢模的技术参数见下表(35页)。混凝土强度必须在400号以上,和易性要好。根据生产实践,认为采用粒径为2～4毫米的米石,0.12～0.15毫米的细砂有利于改善混凝土的和易性,便于悬
Danling County, Sichuan Province, cement products factory in the Southwest Municipal Engineering Design Institute, Sichuan Province, cement products factory and other units with the help and support, the use of suspended roller molding reinforced concrete water pipe and shaft pipe, was successful. In the past five years, more than 10,000 meters of the pipe was used in the well drilling project. Specifications and dimensions of the filter tube and shaft wall tube, and the technical parameters of the roller shaft and the steel mold are given in the table below (page 35). Concrete strength must be above 400, and workability is better. According to the production practice, it is considered that the use of granules with a grain size of 2 to 4 mm and fine sand of 0.12 to 0.15 mm are conducive to improving the workability of the concrete and facilitating the suspension.