Grouting anchor bolt Introduction:
Self drilling rock grouting anchor is a bolting solution for unstable ground conditions such as sand, gravel, silt, and clays, and in soft to medium fractured rock formations.
self drilling rock grouting anchor consists of anchor nut, anchor plate, anchor coupler, hollow anchor bar, sacr ificial drill bit
self drilling rock grouting anchors are successfully used for anchoring in poor ground, cohesive and non- cohesive soils, and in case of unstable boreholes.
Grouting anchor bolt Parameter:
standard | outside diameter | average internal dia | ultimate load capatity | yield load | tensile strength | yield strength | theorical weight | thread type |
mm | mm | kn | kn | N/mm2 | N/mm2 | kg/m | ||
R25N | 25 | 13 | 200 | 150 | 720 | 560 | 2.4 | ISO10208 |
R32N | 32 | 18.5 | 280 | 230 | 720 | 560 | 3.2 | .. |
R32S | 32 | 15 | 360 | 280 | 740 | 560 | 4.0 | .. |
R32L | 32 | 20 | 220 | 160 | 740 | 560 | 2.9 | .. |
R38N | 38 | 19 | 500 | 400 | 740 | 560 | 5.8 | .. |
R51L | 51 | 36 | 550 | 450 | 740 | 560 | 6.8 | .. |
R51N | 51 | 33 | 800 | 630 | 740 | 560 | 7.8 | .. |
T76N | 76 | 51 | 1600 | 1200 | 740 | 560 | 16.5 | ISO1720 |
T76S | 76 | 45 | 1900 | 1600 | 740 | 560 | 20.0 | .. |
T30/11 | 30 | 11 | 320 | 260 | 740 | 560 | 3.2 | .. |
T40/16 | 40 | 16 | 660 | 525 | 740 | 560 | 7.2 | .. |
Grouting anchor bolt Main applications
* Road / rail construction and maintenance
* Tunneling & Mining
* Rural environments
* Private residences
* Special foundations
* Avalanche protection structures
