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Jining Dongda Group Mining Machinery Co,.Ltd
Jining Dongda Group Mining Machinery Co,.Ltd  

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Mining Grouting anchor bolt 

Price: 100.0~300.0 USD 
Payment Terms: T/T,WU 
Place of Origin: Shandong, China (Mainland) 
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Product Detail

Means of Transport: Ocean,Land,Air
Packing: Wooden case
Application: Coal
Brand Name: Dongkuangan
Max height: 2500mm
Production Capacity: 10000 set one month
Delivery Date: 7 days after received the p...
Type: Others
working stroke: 2450mm
Min height: 1050mm

DN inner injection single hydraulic prop for the internal structure of the mine for the fluid hydraulic prop, mainly consist by the roof, ventilation

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.

 

 

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

 ..

 

Main applications

* Road / rail construction and maintenance

 

* Tunneling & Mining

 

* Rural environments

 

* Private residences

 

* Special foundations

 

* Avalanche protection structures

 

System description

1, hollow core with continuous hot-rolled outside thread

2, application as injection anchor without casing, especially for non-stable boreholes

3, self-drilling installation, utilization of the anchor bar as drill rod with a single-use drill bit

4, easy extension of the anchor bars by anchor coupler

5, grouting or development of the grout body either simultaneously with drilling using a rotary injection adapter or afterwards

6, assembly of the anchor head with the anchor plate and the nut, stressing and locking

 

Advantage:

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

Contact person: joanna 

Skype:dongda007

Tel: +86-537-2902388  Fax: +86-537-2902388

E-mail: joanna@dongdamachinery.com

Address : West of Zhixue Road,High-tech Zone,Jining City,Shandong Province,China


bigPhoto
 Ms. joanna

Tel: 86-537-2902388
Contact to this supplier

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Company Info

Jining Dongda Group Mining Machinery Co,.Ltd [China (Mainland)]


Business Type:Manufacturer
City: Jining
Province/State: Shandong
Country/Region: China (Mainland)

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