PCCH
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Short pile with horizontal Compaction The PCCH is a micro pile , drilled , the length of which varies generally between 1,5 to 8 m with an enlarged base . Its body diameter varies from 20 to 35 cm for the body and its base from 60 to 100 cm . Its reinforcement consists in HR or stainless steel pipes. Its head and base are particular elements to be described in the chapter : constitutive elements. Base (Bulb) Base injection pipe Body injection pipe Applications This type of pile is used in numerous applications including without being limited to: - underpinning of foundations - anchorage of sustaining wall The PCCH allows to found constructions on resistant soil layers but can also be used as a friction pile thanks to the compaction that takes place during pressure injection of the grout and creation of a bulb at its base. The PCCH can be used in all kind of soils : polluted or water saturated . The PCCH has a good resistance to traction and bending because of its reinforcement and its high bondage with the injected grout . Its resistance to pulling is large thanks to the bulb at its base. The head plate can be adapted to any interface with the above construction.

Principe de pieux court avec une mise en œuvre simple. In any case , the design is based on a geotechnical survey of the soil. Contrairement aux autres pieux, il n’est pas nécessaire de trouver le bon sol. It should determine : - the type of underneath soil , its nature , the thicknesses and depths of the various layers as well as environmental factors système se base sur deux techniques: Le that influence it (existence of expanding clay) - the presence of water even temporary and of any kind of pollution, 1° la technique des pieux de nos ancêtres; - the contingency of creeping soil. 2° un...

Constituent elements THE REINFORCEMENT A stainless steel pipe is generally used , the diameter of which is 88,9 mm or 101,6 mm , composed of a number of connected elements the length of which depends on the handling equipment available on site : - the head is closed by a plate provided with three openings : two for body and base plastic injection pipes , one for the air vent ; this plate can be used as part of a reinforcement system for the existing structure above; - the base constituted of a perforated pipe allowing the grout to create the bulb fed by a separated injection pipe , closed...

THE SLEEVE It is made out of a fabric , wrapping the whole pile , the expanded diameter of which varies from 200 mm to 300 mm (diameter of the borehole) for the body and is 500 mm at the base to allow expansion to 1000 mm after injection of the bulb. The specifications of the wire and the density of the mesh secure the containment of the injected grout within the sleeve. Due to the expansion of the sleeve , the quality of the friction between the pile and the earth will be optimal. THE GROUT The used grout is CA M-TECH The PCCH has a few advantages on other more traditional systems thanks...