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yi zi ran hou mei ceng zong fang gong zuo mian yu jue hui che tong dao ji shu ji shi jian
Pages: 43-45
Year: Issue:  10
Journal: Coal

Keyword:  易自燃厚煤层综放工作面预掘回撤通道回撤实践;
Abstract: 针对低瓦斯易自燃厚煤层综放工作面收尾回撤期间施工工艺繁杂、作业时间长、采空区遗煤及回撤通道松散煤体极易氧化发火等特点,在红会一矿1710综放工作面通过预先掘成回撤通道,加快了工作面收尾期间的推进速度,缩短回撤通道支护时间;采用3副支架做掩护架,加强通道回撤点支护;并采用正压通风解决回撤期间通风瓦斯管理问题,减少了采空区漏风,实现了工作面安全快速回撤。
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