GEWI ® Pile

Advantages and Characteristics

 

 

The DYWIDAG GEWI ® Pile is a drilled

micropile with a steel core made of
GEWI ® Bar with hot-rolled, continuous

thread deformations on both sides, the

coarse GEWI ® Thread. The

steel core is sheathed by cement grout

which acts both as corrosion protection

and load transfer into the soil or rock.

  • robust coarse thread remains threadable even when dirty or damaged
  • can be cut off and spliced at any given point
  • excellent load transfer into concrete structures by means of anchoring elements
  • a small drill hole diameter allows economic drilling equipment
  • tensile, compression and alternating loads can be transferred to the same extent
  • the coarse GEWI ® Thread guarantees maximum bond between steel and cement grout
  • the stress-strain curve of the GEWI ® Bar shows high ductility
  • continuing settlements can be stopped by preloaded GEWI ® Piles
  • load transfer into the soil is optimized by the post-grouting system
  • Double Corrosion Protected Piles can be used in aggressive media such as seawater or water leaking from dump sites

GEWI ® Pile with single corrosion protection                                       GEWI ® Pile with double corrosion protection

 

GEWI ® Pile with single corrosion protection

1

-additional reinforcement for compression pile
    2-end-anchorage with lock nut
    3-pile neck reinforcment
    4-spacer
    5-coupler
    6-GEWI ® bar

GEWI ® Pile with double corrosion protection

1

-nut with plate and lock nut
2-additional reinforcement for tension pile
3-corrugated sheathing
4-spacer
5-cement grout

 


 

 

GEWI ® Pile and GEWI ® Plus Pile

  nom. diameter steel grade cross sectional area yield load ultimate load
  [mm] [N/mm2] [mm2] [kN] [kN]
GEWI ® bar
with left-hand thread		 32 500/550 804 402 442
40 500/550 1.257 628 691
50 500/550 1.963 982 1.080
63,5 555/700 3.167 1.758 2.217
GEWI Plus ® bar
with right-hand thread		 28 670/800 616 413 493
30 670/800 707 474 565
35 670/800 962 645 770
43 670/800 1.452 973 1.162
57,5 670/800 2.597 1.740 2.077
63,5 670/800 3.167 2.122 2.534
 

GEWI ® Multi Bar Pile

diameter cross sectional area load at yield ultimate load
[mm] [mm2] [kN] [kN]
3 x 32 2412 1206 1327
1 x 40. 1 x 50 3220 1610 1771
3 x 40 3770 1885 2074
2 x 50 3927 1963 2160
2 x 40. 1 x 50 4477 2238 2462
1 x 40. 2 x 50 5184 2592 2851
3 x 50 5890 2945 3240