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Home Georgian Technologies Self-strutting friction anchor for stabilizing pipes and building constructions

Self-strutting friction anchor for stabilizing pipes and building constructions

Description

The anchor consists of a steel pipe and bottom base plate. The 3-4 mm groove is cut lengthwise the pipe. The pipe is filled with solution of a special expanding substance before installation into a hole. High pressure rises on the pipe walls in the course of the solution hardening and expansion. Under pressure the pipe unfolds round the groove and firm contact forms between the pipe surfaces and hole, then the anchor reaches its operating capacity. Unlike the currently used frictional anchors, the new anchor does not need any special equipment to be installed into a hole and is characterized by the improved technological and power properties.

Specification:

  • steel pipe diameter: ......................................................................... 33-46 mm;
  • hole diameter: ................................................................................. 1-2 mm bigger than the pipe diameter;
  • pressure on internal surface of the pipe in the course of installation: ..... 70-90 MPa;
  • expanding substance type: ............................................................... cement-like powder of a special composition;
  • base plate dimensions: .................................................................... 150mm x l50 mm;
  • pull-out value: .................................................................................. 75 kN/m;
  • time necessary for installation of the anchor into a hole: ...................... 1.5 - 2 min.

Innovative Aspect and Main Advantages

  • additional special equipment is not involved to install the anchor in a hole;
  • high shear load resistance;
  • corrosion resistance.

Areas of Application

  • fixing of underground workings;
  • shoring of building foundations;
  • fixing of building constructions at the bottom in water;
  • fixing of river slopes and gorges;
  • strengthening of sliding areas.

Self-strutting friction anchor
Fig. 1 Self-strutting friction anchor

Contact Details

Ekaterina Sanaya
Organization: Sukhumi Institute of Physics and Technology (SIPT)
Address: 15 Kazbegi Avenue 0160 Tbilisi, Georgia
(+995 32) 33 5520
This e-mail address is being protected from spambots. You need JavaScript enabled to view it , This e-mail address is being protected from spambots. You need JavaScript enabled to view it

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