摘要
采用数值模拟研究方法,研究揭示了综放回采巷道桁架锚杆支护参数与支护效果的关系,得到了桁架锚杆的合理支护参数,即以锚杆长2.0～2.2m、60°、孔帮距0.2m、中部1根垂直锚杆的布置方式为宜。研究结果为桁架锚杆支护设计、推广应用提供了基本依据。
This paper demonstrated the relation between support effect and parameter of single-truss used in the roadway of fully mechanized top coal caving face, in the method of numerical simulation to achieve the rational support parameter. It was the better support way to the length 2.0～2.2m,the angle 60°, the distance 0.2m between the roadway and the collar, and one vertical anchor bolt in the middle of the truss. This paper provided the basis for the support design and the application of the single-truss.
出处
《矿山压力与顶板管理》
北大核心
2004年第3期53-54,56,共3页
Ground Pressure and Strata Control
基金
山东省自然科学基金项目资助(Q99F07)
