hollow grouting self drilling anchor bolt - Product
MINIMUM QUANTITY
1000 METERS
Place of Origin : Luoyang,China
Delivery Terms : FOB Qingdao
Delivery Time : 3 Weeks
Payment Terms : L/C,T/T
Product Description
Hollow grouting self-drilling anchor bolt is a bolting solution for unstable ground conditions such as sand, gravel, silt and clays, and for soft to medium fractured rock formations.
A hollow grouting self-drilling anchor bolt system consists of: a hex nut, a bearing plate, a coupling sleeve which enables the flexibility in length, hollow anchor bar(s) and a sacrificial drill bit.
Basic Information
Brand : GY
Model : R25N,R32L/N/S,R38N,R51L/N,T76N/S,T30/11,T40/16
Material : Steel, 40Cr
Physical Specification
Other Specification : Process: Hot Rolling
Model Number: R25, R32L/N/S, R38N, R51L/N, T76N/S, T30/11,T40/16
Ultimate Load: 200-1900KN
Yield Point: 150-1600KN
Application: Mining, Tunneling, Slope Stabilization, Foundation Pit And Roof Supporting Of Underground Works
Prime Advantage Of The Self-drilling Anchor
1, Easy And Similar Operation Principle For Different Rock Mass And Soil Conditions
2, Drilling, Anchoring And Grouting Can Be Performed In One Single Operation
3, No Pre-drilling Of A Borehole By Using A Casing Tube And Extension Rods With Subsequent Anchor Installation Necessary
4, Minor Space Requirement For The Accomplishment Of Anchoring
5, Optimized Machinery And Manpower Requirements
6, Basic Dimensioning Of The Required Anchoring Forces By Choosing The Appropriate Anchor Type
7, Optimum Bonding Of The Profiled Anchor Rod And The Grout
8, Adjustment Of The Drill Bit Design And Diameter To Different Rock Mass And Ground Conditions
9, Simple Anti-corrosion Method Available
10, Appropriate For Temporary Or Permanent Applications
