T76 Self Drilling Anchor Bolt
T76 Self Drilling Anchor Bolt is a Self Drilling Anchor System designed for broken and difficult-to-drill geological conditions. The hollow rod structure of T76 Self Drilling Anchor Bolt can complete drilling and grouting operations simultaneously. The construction efficiency is about 50% higher than that of traditional steel pipe sheds, and it is especially suitable for large-scale projects such as tunnels and subways.
Description
T76 Self Drilling Anchor Bolt is a Self Drilling Anchor System designed for broken and difficult-to-drill geological conditions.
Features of the T76 Self-Drilling Anchor Bolt:
1. Efficient construction
T76 Self Drilling Anchor Bolt adopts a hollow rod structure, which can complete drilling and grouting operations simultaneously. The construction efficiency is about 50% higher than that of traditional steel pipe sheds, and it is especially suitable for large-scale projects such as tunnels and subways.
2. Excellent tensile and yield strength
T76 Self Drilling Anchor Bolt has a tensile strength range of 200-1900kN and a yield strength of 150-1500kN, which can meet the load-bearing requirements under different geological conditions.
3. Strong adaptability
T76 Self Drilling Anchor Bolt is designed for weak surrounding rock and broken rock formations. It can replace traditional steel pipe sheds (such as 60, 76, 89, 108mm specifications), and the overall cost is reduced by about 30% under the same engineering volume.
Applications of T76 Self Drilling Anchor Bolt:
The T76 Self Drilling Anchor Bolt (76mm outer diameter) is mainly used for advanced support and reinforcement in weak, fractured, and easily collapsed strata. It is commonly found in tunnel pipe roof support, slope stabilization, foundation pit reinforcement, and mining engineering.
1. Tunnel Engineering: The T76 Self Drilling Anchor Bolt is used for advanced pipe roof support (such as at the tunnel face, entrance, and shallow buried sections), replacing traditional steel pipe supports to prevent collapse and control surrounding rock deformation. It is suitable for Class IV-V weak and fractured surrounding rock.
2. Slopes and Foundation Pits: The T76 Self Drilling Anchor Bolt is used for the reinforcement of steep slopes, road cuts, and foundation pit walls, especially in difficult-to-drill strata such as sand, gravel layers, and backfill soil, achieving “one-time drilling and simultaneous grouting.”
3. Mining and Underground Engineering: Used for working chamber roof support, radial support or micropiles in roadways to transfer tensile/compressive loads and enhance the integrity of the rock mass.
4. Special Working Conditions: The T76 Self Drilling Anchor Bolt can replace casing drilling, enabling mechanized construction in confined spaces (such as tunnels) through a connecting sleeve extension, improving efficiency and reducing the risk of borehole collapse.
Specifications of the Self Drilling Anchor Bar:
|
Size
|
Outer Dia.(mm)
|
Ultimate Lad(kN)
|
Yield Load(kN)
|
Weight(kg/m)
|
|
25
|
200
|
150
|
2.35
|
|
|
32
|
210
|
160
|
2.8
|
|
|
38
|
500
|
400
|
5.45
|
|
|
51
|
800
|
630
|
8.15
|
|
|
T30L
|
30
|
220
|
180
|
2.9
|
|
T40S
|
40
|
660
|
525
|
6.8
|
|
52
|
929
|
730
|
10.2
|
|
|
T73L
|
73
|
1160
|
970
|
13.2
|
|
76
|
1900
|
1500
|
19.7
|
|
|
T103N
|
103
|
2270
|
1800
|
23.5
|
|
T111N
|
111
|
3650
|
2750
|
34.5
|
|
T127L
|
127
|
2400
|
1810
|
30.5
|
|
T130S
|
130
|
7940
|
5250
|
78
|
|
T150S
|
150
|
8400
|
5600
|
108
|
|
T200S
|
200
|
14230
|
9500
|
183
|
PRODUCT DISPLAY
|
SELF DRILLING ANCHOR BAR
|
||||
|
category
|
model
|
Outer diameter (mm)
|
suitable for geological conditions
|
|
|
Cross all-steel drill
|
HSR32/51
|
51
|
Mudstone, gravel soil, chalk soil, lime soil, calcareous clay, artificial fill, soft mudstone
|
|
|
HSR32/76
|
76
|
|||
|
Cross alloy drill
|
HSR32/51
|
51
|
Soft to medium hard rock, e.g. gravel with boulders, fractured rock formations, unreinforced concrete
|
|
|
mud drill
|
HSR32/76
|
76
|
Clay, soft soil, sandy soil, gravel, mixed fill
|
|
|
Ball tooth all-steel drill
|
HSR32/51
|
51
|
Crushed formations, soft sandstone, limestone, gravel, soft rock formations
|
|
|
HSR32/76
|
76
|
|||
|
Ball tooth alloy drill
|
HSR32/51
|
51
|
Soft to medium hard weathered rock formations, boulders, gravel such as mudstone, schist, volcanic rocks, etc.
|
|
APPLICATION
Mainly used in slope engineering, foundation and foundation engineering, tunnels and underground engineering,etc., such as various slope support, foundation pit support, tunnel pipe shed support, basic support of transmissiontowers or wind power towers, old Building repairs and reinforcement of existing structures, etc.
PACKING & DELIVERY
Shipping By Sea
1. Standard packaging
2. Packaging according to customer requirements
FAQ
Q: Can I get samples before order ?
A: Yes, of course. Usually our samples are free,we can produce by your samples or technical drawings.
Q: Can I go to your factory to visit?
A: Of course, we welcome customers from all over the world to visit our factory.
Q: What product information do I need to provide?
A: You need to provide the grade, width, thickness, coating and the number of tons you need to purchase.
Q: Does the product have quality inspection before loading?
A: Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed.we accept third party inspection.
Q: How do we trust your company?
A: We specialise in steel business for years, headquarter locates in Liaocheng, Shandong province, you are welcome to investigate in any ways, by all means, we have CE and ISO9001 certificate, quality can be guaranteed.
