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煤炭科学院上海研究所、上海第一石油机械厂、萍乡矿务局共同研制的国家重点科研项目EJ-30型全断面岩石掘进机,经过在几座煤矿中水平岩石主巷道掘进时试运(主要在石灰岩、片麻岩、砂岩等中硬度岩石中掘进),到1982年底共掘进了1500米。煤炭部于1983年1月在山西大同召开了现场技术鉴定会。到会同志听取了制造、试运及有关单位的报告,并到现场观看了实际操作,经过座谈分析,同志们认为EJ-30型机经过1500米试验考核,性能良好,施工质量达到了
EJ-30 Full-face Rock Tunnel Boring Machine jointly developed by Shanghai Institute of Coal Science, Shanghai First Petroleum Machinery Factory and Pingxiang Mining Bureau, was tested and transported at main tunnel of horizontal rock in several coal mines In the limestone, gneiss, sandstone and other hardness of the rock in the tunnel), by the end of 1982 a total of 1,500 meters dredging. The coal department held the on-site technical appraisal meeting in Datong, Shanxi in January 1983. At the meeting, comrades listened to the reports of manufacturing, trial transport and related units and went to the site to watch the actual operation. After discussion and discussion, comrades thought that the EJ-30 machine passed the 1,500-meter test and was tested with good performance and construction quality