Carbon Steel Screw Thread Anchor Bolt for Tunnel Engineering
Product Description
|
Product Description
|
Hollow anchor bar means a rod that transfers the structures or geotechnical load to a stable rock formations, anchor bolt consists
of bar, drill bit,
coupling, plate, grouting stopper and nut.
Widely used as an efficient anchoring means, in tunnel pre-support, slope, coast, mine, water conservancy projects, building foundation, roadbed reinforcement and geological diseases treatment such as landslip, crack, sink age. It's irreplaceable in narrow construction environment.
Hollow anchor bar is made of seamless tube with high strength.
Features of Hollow Grouting Anchor
Bar
:
• Fits standard Boomer, ROC and Mustang rigs.
• Particularly suitable for difficult ground conditions.
• A high rate of installation since drilling, placing and grouting can be performed in one single operation.
• Self drilling system eliminates the requirement for a cased borehole.
• Installation with simultaneous drilling and grouting possible.
•
Easy installation in all directions, also upwards.
• Suitable for working in limited space, height and in areas of difficult access.
• Simple post grouting system.
• Hot-dipped galvanizing for corrosion protection
Advantages and Characteristics
:
1.No casings required, because anchor bars can be drilled into loose soils without needing casings to support the boreholes.
2.Fast drilling and installation, because drilling, installation and grouting are in a single operation.
3.Both rope threads and trapezoid threads are robust and ideal for rotary-percussive drilling and ensuring a high level of bond with the borehole gout.
4.The hollow core not only serves for flushing during drilling, but also for grouting after
drilling.
5.Continuous threads ensure the bars can be cut and coupled at any point, or extended.
6.Different anchor bits are available for different ground conditions.
7.Duplex anti-crossion prosess ,hot-dip galvanized and epoxy coating system.
| Product Parameters |
B7X1 Domestic Hollow Injection Bar
|
BAR
DIAMETER |
AVERAGE
INNER DIAMETER |
MINIMUM
NET AREA THROUGH THREADS |
MINIMUM
ULTIMATE STRENGTH |
MINIMUM
YIELD STRENGTH |
NOMINAL
WEIGHT |
PART
NUMBER |
|---|---|---|---|---|---|---|
|
32 mm
(1-1/4") |
0.787"
(20.0 mm) |
0.556 in²
(359 mm²) |
58.4 kips
(260 kN) |
47.2 kips
(210 kN) |
2.1 lbs/ft
(3.1 kg/m) |
B7X1-032N |
|
32S mm
(1-1/4") |
0.626"
(15.9 mm) |
0.776 in²
(501 mm²) |
81.5 kips
(363 kN) |
66.0 kips
(294 kN) |
2.7 lbs/ft
(4.0 kg/m) |
B7X1-032S |
|
38 mm
(1-1/2") |
0.830"
(21.1 mm) |
1.067 in²
(688 mm²) |
112 kips
(498 kN) |
90.7 kips
(404 kN) |
3.76 lbs/ft
(5.6 kg/m) |
B7X1-038N |
|
51 mm
(2") |
1.187"
(30.1 mm) |
1.795 in²
(1158 mm²) |
188 kips
(837 kN) |
152 kips
(677 kN) |
6.26 lbs/ft
(9.3 kg/m) |
B7X1-051N |
|
76 mm
(3") |
1.890"
(48.0 mm) |
3.880 in²
(2503 mm²) |
407 kips
(1811 kN) |
329 kips
(1466 kN) |
13.79 lbs/ft
(20.5 kg/m) |
B7X1-076N |
Structural Properties
|
YIELD
STRESS |
ULTIMATE
STRESS |
MINIMUM
ELONGATION |
|---|---|---|
|
85 KSI
|
105 KSI
(724 MPa) |
15% |
B7Y1 Non-Domestic Hollow Injection Bar
|
BAR DESIGNATION
& OUTER DIAMETER |
AVERAGE
INNER DIAMETER |
MINIMUM
NET AREA THROUGH THREADS |
MINIMUM
ULTIMATE STRENGTH |
MINIMUM
YIELD STRENGTH |
NOMINAL
WEIGHT |
PART
NUMBER |
|---|---|---|---|---|---|---|
|
T30S - 30 mm
(1.18") |
11 mm
(0.43") |
0.662 in
2
(427 mm 2 ) |
71.9 kips
(320 kN) |
58.5 kips
(260 kN) |
2.42 lbs/ft
(3.6 kg/m) |
B7Y1-030S |
|
T40N - 40 mm
(1.57") |
20 mm
(0.79") |
1.046 in
2
(675 mm 2 ) |
121 kips
(539 kN) |
96.7 kips
(430 kN) |
4.23 lbs/ft
(6.3 kg/m) |
B7Y1-040N |
|
T40S - 40 mm
(1.57") |
16 mm
(0.63") |
1.222 in
2
(788 mm 2 ) |
148 kips
(660 kN) |
118 kips
(525 kN) |
4.84 lbs/ft
(7.2 kg/m) |
B7Y1-040S |
|
T52N - 52 mm
(2.05") |
24 mm
(0.94") |
1.874 in
2
(1209 mm 2 ) |
209 kips
(929 kN) |
164 kips
(730 kN) |
6.92 lbs/ft
(10.3 kg/m) |
B7Y1-052N |
|
T64 - 64 mm
(2.52") |
40 mm
(1.57") |
2.4 in
2
(1548 mm 2 ) |
261 kips
(1160 kN) |
209 kips
(930 kN) |
8.74 lbs/ft
(13 kg/m) |
B7Y1-064N |
|
* T73N - 73 mm
(2.87") |
53 mm
(2.08") |
2.5 in
2
(1615 mm 2 ) |
260 kips
(1160 kN) |
218 kips
(970 kN) |
8.9 lbs/ft
(13.2 kg/m) |
B7Y1-073N * |
|
T76S - 76 mm
(2.99") |
45 mm
(1.77") |
3.891 in
2
(2510 mm 2 ) |
427 kips
(1900 kN) |
337 kips
(1500 kN) |
13.23 lbs/ft
(19.7 kg/m) |
B7Y1-076S |
|
* T103N - 103 mm
(4.06") |
78 mm
(3.07") |
4.87 in
2
(3140 mm 2 ) |
510 kips
(2270 kN) |
405 kips
(1800 kN) |
17.0 lbs/ft
(25.3 kg/m) |
B7Y1-103N * |
|
* T130N - 130 mm
(5.12") |
60 mm
(2.36") |
16.2 in
2
(10452 mm 2 ) |
1785 kips
(7940 kN) |
1180 kips
(5250 kN) |
50.4 lbs/ft
(78 kg/m) |
B7Y1-130N * |
| Detailed Photos |
| Company Profile |
Shandong Shanshui Special steel pipe Co.,LTD. Our company was founded in 2014, The headquarters is located in 14th floor, Rongfu Center, Huangshan Road,Liaocheng ,Shandong Province,China.
We specialized in the research and development,production,sales and application promotion of seamless steel pipe. We can provide customer-required Standard,Specification,Material,
Application of Carbon steel tube,Alloy steel tube and their machined products etc.
We have ten years of industry experience, the annual output of the factory is 250,000
tons, non-standard steel tube, super thick wall steel tube, alloy steel tube, super long
steel tube, fixed size steel tube are our production advantages.
We have perfect production equipment:
· 50 production workshop · 76 production workshop · 90 production workshop
· 60 Cold Rolling Resources
Units(OD10-159mm,THK2-20mm)
Our factory can provide customers with product testing and steel tube machining services,
"OWN PRODUCTION &SALES" production mode, flexible to meet customer needs, for
customers to save money.
Our factory's product quality is guaranteed, workshop production control is strict, coordination ability is strong, timely delivery.
Excellent quality and perfect service are the premise and guarantee to create maximum value for customers!
| Certifications |
| FAQ |
What kind of company is Shandong Shanshui Special Steel Co., LTD.?
Shandong Shanshui Special Steel Co., Ltd. is a reputable manufacturer and supplier of top-quality steel products in Shandong province, China. With our dedication to excellence, we specialize in producing a wide range of steel pipes including seamless, welded, and alloy steel pipes.
Our company is committed to providing customers with high-quality and reliable steel products. We have built a strong reputation both domestically and internationally for our consistent product quality and customer satisfaction.
Where is the factory of Shandong Shanshui Special Steel Co., LTD.?
We have 50, 76, 90, a total of three large hot-rolled seamless steel pipe production lines, and there are 10 fine rolled seamless steel pipe production lines. Among them, the 90-line configuration of Assel limited mandrel rolling machine is the strongest three-roll rolling capacity in China, and with the two-roll sizing machine, it is the only production line that can produce ultra-thick wall specifications and ultra-long steel pipes. We can accept non-standard steel pipe, super thick wall alloy steel pipe, we produce and sell by ourselves, fast delivery, to provide efficient solutions for customers' steel needs.
How about our product quality and after-sales service?
My factory finishing rolling tube in Liaocheng first product quality assurance service, that is: product quality problems, our company can undertake replacement, return and other quality assurance services. Execution in the workshop: process card, work order, 2-hour quality inspection, entrance inspection, exit inspection, etc., to ensure that unqualified products do not produce and do not leave the factory.
What can you buy from us?
Shandong Shanshui Special Steel Co., Ltd. can provide various types of steel pipes, including but not limited to:
1.Seamless steel pipes: Suitable for high temperature, high pressure, and special applications in industries such as petroleum,natural gas, chemical, and power.
2.Welded steel pipes: Suitable for general industrial, construction, and structural purposes, such as buildings, bridges, and machinery manufacturing.
3.Alloy steel pipes: Treated with alloy elements, these pipes have high strength, wear resistance, and corrosion resistance. They are widely used in industries such as petroleum, chemical, power, and aerospace.
4.Oil pipes: Used for oilfield development and oil transportation, these pipes are resistant to high temperatures and corrosion.
5.Gas pipes: Used for natural gas transportation, these pipes have high pressure and corrosion resistance.
6.Hydraulic support pipes: Used in mining, construction, and mechanical equipment as hydraulic supports, these pipes have high strength and corrosion resistance.
In addition, we also provide customized steel pipe products. We can manufacture pipes with special specifications, materials, and processing requirements based on customer needs.
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