Sinorock hollow bar-The perfect model of anchoring product
Sinorock injection hollow bar is a sort of hollow bar that makes grouting and anchoring can be done simultaneously,it can also provide an excellent effect on various kinds of complex conditions,such as soft soils,loose rock,fractured zones and so on.The injection hollow bar is versatile in the projects of mining,tunneling,transportation,kinds of foundation support and national defense ect.
The injection hollow bar is applicable to medium and good ground conditions and is perfect for permenent support,pressure grouting from rock bolt can stabilize broken rocks and prevent underground water to keep rock bolt from corrosion.These can provide support for the stabilty of surrounding soils.
The injection hollow bar has a lot of striking features just as follows:
1.Hollow design,realizing the function of grouting.
2.Fully grouted,pressure grouting can be realized easily.
3.The anchor bolt can be put in the middle of the bolt hole and covered by grout along the whole length of it,which can largely reduce the possibility of being corroed and provide permanent support for sunrrounding soils.
4.The holow bar can be installed with easy,also,it's fully threaded so the anchor plate and anchor nut are easy to install.
5.Adopt anchor head that can exhaust upwards,which entirely solve the trouble of that it's hard for the hollow bar to exhaust above the horizontal line.
The reinforcement length is depending on the altitude of rock that suspended along the direction of anchor bolt or the loading hight of surrounding rock,the length of reinforcement can also be caculated by the thickness of loose ring that measured by sound wave or other technologies.
The tension test of the self drilling injection hollow bar,which is one of the way to test the quality and tension of anchor bolt.Before the anchor bolt is covered by cement grout,the tension can be directely tested by using tension meter and torque wrench.Grip bolt and give pressure slowly until it up to up to a number the same the desired one or the anchor bolt start to loose,and the destruction test is generally not to be considered.
After the bolt is wrapped up by grout and detected by detecting instrument,make a test after the anchor bolt was pulled out.Every 30-50m rod or 300 sticks will be a group and each group is not less than 3 sticks,the anchor bolt should be choosed from the lines of anchors in the same fractured surface.
If you have any question about our product,please contact us at any time,we have established a comprehensive service system.It includes 7*24 hours online consultation,great products packaginf solutions and professional after-sales service.
Our engineer is ready to provide technical guidance if needed.
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