久久婷婷五月综合色国产香蕉_在线亚洲精品国产一区麻豆_欧美一区二区三区爽大粗_久久不见久久见免费影院www日本

Do you know the structure of anchor drilling machine?

Let's tell you the following three points about the mechanical action principle of anchor bolt in anchor drilling machine:

Suspension effect of Anchor Rod: The Anchor Rod passes through the weak and loose rock and soil mass, and the anchor can stabilize the formation to generate tension, overcome the self-weight and sliding force of the sliding rock and soil mass, and prevent the sliding and collapse of the slope cave wall;

Extrusion reinforcement effect: compression section of adjacent anchor bolts after being stressed overlap each other to form compression zone. Enhance integrity and bearing capacity;

Combined beam (arch) effect: After the bolt is inserted into the formation at a certain depth, the strata under the action of anchoring force squeeze each other, the interlayer friction resistance increases, and the internal stress and deflection decrease, it is equivalent to changing a simple overlapping beam (arch) into a composite beam (arch). The bending rigidity and strength of composite beam (arch) are improved, thus enhancing the bearing capacity of formation.