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由铁道部隧道局科研所和河南省煤炭科研所联合研究,焦作方庄矿设备厂试制,在北京地铁西单折返线等地进行工业性试验。经过近一年的试用,证明该机组及其所采用的风送湿喷混凝土新工艺完全适合铁路隧道、水工涵洞、矿山井巷、地下工程和市政建设的施工需要,具有技术性能先进、工艺
The research was conducted jointly by the Research Institute of the Tunneling Administration of the Ministry of Railways and the Henan Provincial Coal Science Research Institute. The Jiaozuo Fangzhuang Mine Equipment Factory was trial-produced and industrial tests were conducted on the Beijing Xidang Fickback Line and other places. After nearly one year of trials, it was proved that the unit and the new process used in the blasting of wet blasting concrete are completely suitable for the construction needs of railway tunnels, hydraulic culverts, mine tunnels, underground engineering and municipal construction, with advanced technical performance and technology.