Method of forming enlarged pile heads
AssigneeCementation Foundations Skanska Limited
InventorsGraham Bartlett, Melvin Gerrard England
Life of this patent
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Abstract
The present application relates to a method of installing a pre-cast pile in the ground which involves applying an enlarged head forming tool to the ground until a volume of soil has been displaced or removed so as to form a void at the surface of the ground. The pre-cast pile is then driven into the ground to a predetermined depth below the void and the void is then filled with concrete or grout to form a cast-in-situ pile head. The diameter of the pile head is greater than the diameter of the pile shaft.
Claims19
A method of installing a precast pile in the ground, the method comprising the steps of:
- i) driving an enlarged head forming tool into the ground until a volume of soil has been displaced or removed, thereby forming a void at the surface of the ground;
- ii) driving a precast pile into the ground through the enlarged head forming tool to a predetermined depth below the void formed in step i);
- iii) filing the void with concrete or grout directly around an upper end of the precast pile to form a cast-in-situ pile head, wherein the diameter of the pile head is greater than the diameter of the pile shaft.
A method of installing a precast pile in the ground, the method comprising the steps of:
- i) driving an enlarged head forming tool into the ground until a volume of soil has been displaced or removed, thereby forming a void at the surface of the ground;
- ii) driving a precast pile into the ground through the enlarged head forming tool to a predetermined depth below the void formed in step i);
- iii) filing the void with concrete or grout directly around an upper end of the precast pile to form a cast-in-situ pile head, wherein the diameter of the pile head is greater than the diameter of the pile shaft;
- wherein a reinforcement cage is placed over the upper end of the precast pile before the void left by removal of the enlarged head former is filled with concrete to grout, the reinforcement cage serving to supplement the strength of the enlarged diameter pile head.
Dependencies are inferred from the claim text.