摘要
通过大比例平面应变相似模拟试验,研究了单式和复式桁架支护方式在特大断面煤巷中的支护效果,并对试验结果进行了分析和探讨,研究表明,单式和复式桁架锚杆对大断面煤巷有较好的支护效果,但各有其适应范围.
By means of a similarity-simulation test of large proportion ,the paper studies the support effect of the single trusses and the double trusses and then analyses the test results. The research points out they have a good support effect in the big cross section coal ,but thier use range is different.
关键词
桁架
相似模拟
煤巷
锚杆支护
truss
coal road bolting
similarity-simulation
