Sinorock self drilling hollow bar-an efficient and new technology
Self drilling hollow bar an efficient and new technology
Self drilling hollow bar is available to suit infrastructures with diverse construction methods,
,such as roadway,highway,raiway station,hydroelectric station support projects and other complicated ground conditions.
There are a great many hydroelectric stations with insufficient structural integrity,and it's very difficult and inefficient to drill hole with conventional abchor bolt supporting means.
The self drilling hollow bar can effectively deal with the problems of drilling holes in unconsolidable soils,it' efficient,reliable,high-quality,especially adopted with large-diameter and deep self drilling hollow bar,the construction process is undergoes very well.
The technoligies of self drilling hollow bar are simple,convenient,reliable and it is well applicable to the poor rock condition support project.
As an efficient and new technology,self drilling hollow bar has became very popular in the applications of hydroelectric station support projects in recent years.
And it provides a great deal of excellent solutions for anchoring in weak ground conditions,such as gravel,sandy gravel,stone with weathered layer,loose rock,broken soils and other poor geological conditions.
In the construction of hydroelectric station support project,cement grout is injected through the hollow bar and the collapsed borehole can be fully grouted and the stability of the rock condition will be extensively improved.
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