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Rock Anchor

Rock Anchor

 

Ground Anchors are basically devices used to transmit the forces to the soil by means of prestressed tendon to anchor the Structure to the ground or to retain the slopes from collapsing.

 

Types of Ground Anchors:

PRESTRESSED GROUND ANCHORS

  • Based on The Anchorage Zone 
    • Rock Anchors- Fixed length is anchored in the hard rock
    • Soil Anchors- Fixed length is anchored in the Soil
  • Based on Nature of Structure
    • Permanent Anchors – Permanent ground anchors have to guarantee their function during the lifetime of the structures to be anchored
    • Temporary Anchors – Prestressed anchors, which have to fulfill their function only for a limited time
  • Based on How it is installed
    • Vertical Anchors – These anchors are provided vertically into the ground
    • Inclined Anchors – These anchors are provided at an angle into the ground
  • Based on Application
    • Test Anchors – Test anchors are specially design anchors subject to extensive tests in order to obtain, either comprehensive information on anchor capacity and geo-technical conditions, or to prove the quality and adequacy of design, material and construction
    • Control Anchors – Control anchors are anchors in or beside the structure used for long-term observation. They are often equipped with devices, which monitor the variation of forces and displacement.

 

Application:

1) Stabilization of Unprotected Slopes or man made cuts:

 

 

2) Securing Structures below Groundwater level against Buoyancy

 

 

3) Anchoring Concentrated tensile Forces as for Cableways or Bridge abutments

 

4) For Retaining Walls Or for Excavation

 

Components of the Anchor:

1) H T Strand (12.7 mm or 15.2 mm dia.) 
2) Anchor Head 
3) Thrust plate
4) MS/HDPE Sleeve 
5) Spacers

 

METHODOLOGY FOR GROUND ANCHORS:

Rock anchoring work is carried out in the following steps-

  • Drilling
  • Water Test ( Permeability test)
  • Virgin Grouting
  • Re-drilling
  • Homing
  • Primary Grouting ( Fixed length grouting)
  • Stressing
  • Secondary Grouting

 

Inclined rock/rod anchor for slope stabilisation

Inclined anchor for excavation

Inclined anchor for basement excavation

Vertical anchor for uplift pressure in foundation

 

Do you have any questions?

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MAURER-Sanfield (India) Limited is the exclusive designers, manufacturers and installers of a wide range of High Performance, Specialized Construction Related Products, manufactured in Technical collaboration with various world renowned Companies.

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  • +91-755-4233535
  • [email protected]
  • 13-A, D-Sector, Industrial Area, Govindpura, Bhopal - 462023, India