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Dynamic Energy Absorbing Bolt (E-Bolt)

category:ROCK BOLT | updatetime:2017-06-05 11:25:08 | hits:
  • Specification

E-Bolt is made of smooth round bar with paddle configuration.

Functions:

It is an effective rock reinforcement system for underground roof support. If there is rock mass deformation, the paddle part will be worked as anchor points to bear the load and smooth section will absorb energy to prevent rock fall.

Features&Advantages:

1.After fully grouted in the bore hole, the paddle part will work as anchor points. If there is rock mass deformation, the paddlesection will bear the load and thesmooth section can move axially or radially without constraints and absorb energy to prevent rockfall.

2.Kiruna wedge can be used for immediate support function. So that the wire mesh can beinstalled together with bolt.

3.This E-Bolt is particularly suit for mines with large deformations in the rock mass, e.g. seismically

active mines, rock burst or squeeze rock area.

4.Product has been tested by CANMET,CANADA

Mechanical properties:

Product name

20mm E-Bolt

Smooth section diameter

20mm
Yield strength>500MPa/160kN

Tensile strength

>630MPa/200kN

Displacement capacity(for 2.1m E-Bolt)

>200mm

Energy absorbing>40kJ

Elongation after fracture

>20%

Suggested bore hole diameter

28-30mm

Bearing plate:

Round plate, domed plate

Accessories:

Domed nut, hex nut, anti-friction washer,domed ball

Kiruna wedge can be used for immediate support.

Length & Package:

1.Bolts are packaged in bundles.

2.Bolt fittings, such as nuts, anti-friction washers and domed balls, are supplied fitted to rock bolts in the configuration requested.

Applications

Mines

Tunnels

Slopes

Places where need ground support

PRODUCT LIST
CONTACT US

Contact Person: Tony Sun

E-mail: rockbolt@trky.cn

Mobile:+86-18953894976

Tel:+86-538-5050586 Fax:+86-538-5050585

Skype: trmining999 Whatsapp/Wechat: 18953894976

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