CHANCE® Helical Pulldown® Micropile Installation

CHANCE® Helical Pulldown® Micropile is a time efficient high capacity pile system that is constructed by reinforcing the helical pile shaft with a grout column. The addition of a high density grout column provides increased resistance to buckling in weak sub-surface soils while protecting the helical pile against corrosion in aggressive soils. By combining the skin friction of the grout column with the end-bearing helical piles, load capacities can be substantially increased.



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Micropile Construction and Design - The Judy Company

Originally conceived in Italy in 1950 and called root piles, micropile construction has many uses for foundation repair, slope stability, reinforcement of walls, underpinning, seismic reinforcement, earth retention and ground support. Micropiles are small diameter boreholes often drilled beneath structures for support or in difficult access locations where other methods prove infeasible. For more information visit www.judycompany.com or call (1-913-378-2575) one of our engineers or geologists to learn how micropiles can be used for your project.



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TERRASOLUM Simulation of handexcavated adit with micropile awning in Flac3D

TERRASOLUM www.terrasolum.es made a simulation of the construction process of a hand excavated tunnel in heading and bench excavation, in order to obtain support loading and deformation. Micropiles are used in order to prevent tunnel face collapse in soft soil.



http://www.youtube.com/watch?v=FEDqVk-sOtc&hl=en

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Chance Helical Pulldown Micropile

The CHANCE Helical Pulldown Micropile works two-fold to develop capacity. Utilizing capacity gained by the end bearing on the helices and the skin friction developed by the grout column, the Helical Pulldown Micropile can develop both Tension and Compression capacities in upwards of 200 ton (400 kip). The grout column is delivered using the grout's own hydrostatic pressure head and fills in the void created by the displacement plates as the helical pier is "screwed" into the soil.



http://www.youtube.com/watch?v=A4GkiaPIgYw&hl=en

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