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周源山煤矿较早地应用了锚喷支护,工人素质较好,作业正规。湖南煤炭系统许多锚喷新技术都在我矿试验和推广应用。过去我矿在喷射混凝土施工中先后采用过的一些速凝剂对皮肤有腐蚀,对眼睛和呼吸道有刺激,粉尘浓度较大,工作面清晰度不高,尤以喷顶为甚,影响施工质量,施喷后混凝土“翻白”,
Zhouyushan Coal Mine earlier application of the anchor spray support, better quality workers, regular operations. Many new technology of coal-anchor system in Hunan mine are tested and popularized in our mine. In the past, mine used some quick-setting admixture in the construction of shotcrete to corrode the skin and irritate the eyes and respiratory tract. The dust concentration is high, and the working face definition is not high, especially for spouting, which affects construction quality , After spraying the concrete “white”