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以较典型的新建煤矿层状顶板为例，试验锚杆支护参数的改革，并进行技术经济分析，验证了锚杆支护设计改革的可行性
Taking the typical typical example of newly-built layered roof of coal mine as an example, we test the reform of bolt support parameters and carry out technical and economic analysis to verify the feasibility of the design of bolt support design