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该机由煤炭科学研究院上海研究所等单位研制,经过长期试验,取得良好效果,于1978年12月由煤炭部科技局组织技术鉴定,经过定型已由上海所实验工厂等制造单位作小批量生产。 (一)用途用于开凿用冻结法施工的立井,凿挖冻土与冻结段的风化带及基岩。在寒冷地区亦可对季节性冻土及老冻土进行挖掘。在市政工程方面,可破碎各种废弃道
The aircraft by the Shanghai Institute of Coal Research Institute and other units developed, after long-term tests, and achieved good results, in December 1978 by the Ministry of Science and Technology, Ministry of Coal Technical appraisal, after the prototype by the Shanghai factory and other manufacturing units for small quantities produce. (A) Uses Used to excavate the use of freezing construction of the shaft, digging frozen soil and frozen section of the weathering belt and bedrock. Seasonal cold and frozen ground can also be excavated in cold regions. In municipal engineering, various waste roads can be broken