Hollow Anchor Bars adopts a certain bent flexible strand through pre-drilled boreholes and should be anchored deep in the surrounding rock in some way, the exposed part consists of a series of reinforcement means by working through the pre-tensioned bolt clamping tray of surrounding rock.
Its characteristics is combined with deep anchorage of surrounding rocks, high load carrying capacity, a large preload can be applied, and thus ideal supporting effect can be obtained , which is the most reliable and most effective means. Strengthening its range, support strength, reliability and some other properties are not ordinary bolt can compare.
Anchor bars can be applied in mining,tunneling,foundation support project,hydroelectric project and roadway project in accompany with the support of self drilling anchor bar,
In recent years,a great many advanced anchoring approach has been developed and implemented,small aperture anchor is mainly used in crushing, composite roof roadway; along with the top coal caving roof coal seam floor excavation roadway; weakness and highland stress roadway; and large span open - off cut and roadway intersections.
More information here
請先 登入 以發表留言。