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主要介绍采用HBMD-20/18-90S煤矿用混凝土泵进行砌碹支护工艺,从而加快施工进度、减轻职工劳动强度,提高混凝土的密实度和接茬质量;提高碹体的抗渗性能,达到有效全断面封闭水仓围岩的目的。
This paper introduces the use of HBMD-20 / 18-90S coal mine concrete pump piling support process, thereby speeding up the construction progress, reduce labor intensity and improve the concrete density and quality; to improve the impermeability of the body to achieve effective The whole section closed the purpose of surrounding rock water.