综采工作面支架安全快速拆除新工艺
New Technology of Quick and Safe Support Removal of Fully Mechanized Face
-
摘要: 针对传统综采工作面支架拆除工艺在安全、施工速度、材料耗费等方面的不足,以张集煤矿1214(3)工作面支架拆除工程为例,介绍了一种改进的综采工作面支架安全快速拆除新工艺。该新工艺顶部采用锚梁网支护,帮部只采用锚杆支护,简化了通道支护工艺;采用多台支架作为掩护架,提高了支架拆除的安全性;通道顶板随着掩护支架的前移自行垮落,不需维护。实践证明,该综采工作面支架拆除新工艺安全、快速,取得了明显的经济和技术效益。Abstract: In order to overcome shortcomings in safety, working speed and material consuming of traditional supporting removal technology of fully mechanized face, the paper introduced a new technology of quick and safe support removal taking support removal of 1214(3) fully mechanized face of Zhangji coal mine as an example. The new technology uses anchor net to support roof and anchor to support two sides of runnel, so as to simplify technology of tunnel support, and uses several supports as shield supports to improve safety of support removal. Besides, the roof can cave itself without maintenance with the shield supports' forward movement. The actual application showed that the new technology is safe and quick, and can create obvious economic and technique benefits.