Driven pile TEP

steelreinforced concretefoundation

A TEP pile (Tube Enfoncé Pneumatiquement) is a pneumatically hand-driven displacement pile. The pile consists of a permanent steel tube of very small diameter, driven with a pneumatic hammer and then injected. Construction sequence 1. & 2. Driving of the first casing segment, at its base sealed by a lost closing nut tip The second casing tube is welded or sleeved to the first one and also driven using a pneumatic hammer. Driving the different steel tubes, welded or sleeved together, continues until the refusal and / or the required length has been obtained. 3. Cement grout is injected at the base of the pile and moves up along the casing tubes: injection outside and inside the pile. 4. The completed TEP pile. Fields of application • Pile foundation withstanding reduced loads, suitable in confined spaces or in areas with limited headroom and / or restricted access • Underpinning of existing buildings and stabilization Environmental impact • Lateral soil displacement • No spoil because no soil extraction of soil – no removal of soil from the job site • Limited vibration and noise pollution • A dry work platform is needed Technical specifications • Length of tube segments variable, but mostly 1 m long • Injection hole at the bottom of the tube • Allowable bearing capacity up to maximum 120 kN • Possibility to resist tensile loads • Pile installed with a pneumatic hammer, involving soil displacement • Pile installed with a small drilling equipment, see FORATEP pile