干喷混凝土存在质量不稳定、回弹量大、成本高、作业环境恶劣等问题。潮喷机械的出现,作业环境和回弹量大的问题有所改进。在现场技术人员和机械研究人员的共同努力下,湿喷机械及工艺迎来了发展的春天,为喷射混凝土向高性能方向发展奠定了基础。 Dry shotcrete has the problems of unstable quality, large springback, high cost, and adverse operating conditions. The emergence of tidal jet machinery, the operating environment and the problem of large rebound volume have improved. With the joint efforts of field technicians and mechanical researchers, wet spraying machinery and technology have ushered in the spring of development, laying the foundation for the development of sprayed concrete to high performance.