Therefore, understanding the forced mechanism of soil anchor bolting to design competence, reduce project accident and reduce project cost has directive significance at present.
因此，了解土层锚杆受力机理对目前锚杆设计水平和减少工程事故及降低工程造价具有指导意义。
2
Tests show that the bolting method is simple in technology, easy for construction, lower in cost and reliable in safety with remarkable economic and social benefits.
试验证明该支护方法技术简单，施工方便，成本低，安全可靠，具有显著的经济效益和社会效益。
3
It is proved that the rock bolting is the most suitable supporting type for coal roadways in coal mines with high efficiency and low cost.