Abstract: Pile forming includes providing an anchor having a shaft with a major axis, a bit fixed at one end, and a stop releasably coupled to the shaft. A casing having a major axis, is co-axially aligned with the major axis of the shaft, between the bit and the stop. A centralizer maintains separation between the shaft and casing, creating a region therebetween. The anchor is placed in soil, ground or substrate, the shaft turned and pressure applied to advance the anchor, forcing material out of a region surrounding the shaft. The stop is decoupled from the shaft. The shaft is continually turned and pressure applied to further advance the anchor. A fluid grout is flowed into said region surrounding the shaft and into the region between shaft and the casing. The turning and application of pressure are stopped, and the fluid grout allowed to solidify.
Abstract: Method for placing a concrete-structure load-bearing pile or anchoring pile into the ground, in which method by means of hits generating device (3) a pile hole forming equipment, like with an end piece (5) equipped tube (1, 17) is forced into the ground to an intended depth (S) to a place meant for the intended pile, after forcing concrete mass is lead into said tube (1, 17) and simultaneously the tube (1, 17) is drawn out of the hole by means of the hammering device (3) wherein concrete mass fill the space meant for the final pile and the end piece (5) remaining as a pile top.
Abstract: A pile is installed in a drilled hole in the ground by inserting a tube extending to the bottom and providing on the bottom end of the tube a bottom shoe for compressing material at the bottom of the hole. A drive tool attached to the upper end of the tube applies downward compression and reciprocating rotation forces to the tube. A hammer by-passes the drive tool to apply impact forces to an upper surface of the shoe at the bottom of the tube acting to drive the shoe in downward movement so that the shoe slides downwardly relative to the tube. A radial surface of the shoe causes compressive forces on the material at the bottom of the hole and blades on the radial surface when reciprocated back and forth by the tube cause break up of the compressed material to allow repeated compression and significantly increased supported loads on a pile which is applied with the tube removed and is supported on the shoe.
Abstract: A grout injecting/structure anchoring system has a support bracket with a horizontal portion and a pair of threaded recesses and a sleeve there between. A grout tube has a plurality of apertures along its length. A lower cross brace is positioned above the sleeve and guide tube and grout tube with unthreaded holes axially aligned with the threaded recesses of the support bracket. The lower cross brace has associated there with threaded cylinders with lower ends coupled to the threaded recesses and upper ends extending through the unthreaded holes. Nuts are received by the upper ends of the threaded cylinders above the lower cross brace. The nuts are adapted to be rotated for raising the support bracket.
Abstract: A method of construction includes positioning at least one support member (2) in the ground, forming a foundation (4) substantially adjacent the at least one support member, excavating ground beneath the foundation to a prescribed depth below the surface (5) temporarily forming cavities or voids (8) and supporting bridges (10) beneath the foundations, excavating the supporting bridges and dropping the formed foundation to the prescribed depth. Structures such as walls (12) may be constructed on the foundations prior to dropping the foundations and bracing members (22) may be used to prevent deflection of the walls.
Abstract: A system is provided for creating at least one conduit in a borehole formed in an earth formation. The system comprises a device which includes movement means for moving the device in longitudinal direction through the borehole, and injection means for injecting a hardenable substance into the borehole so as to form, for each said conduit, a layer of hardened substance in the borehole behind the device, said layer defining the conduit. The system further comprises control means for controlling the rate of injection of said substance by the injection means so as to correspond with the rate of movement of the device through the borehole by the movement means.
December 19, 2002
June 12, 2003
Josef Guillaume Christoffel Coenen, Leo Bernhard Maekiaho
Abstract: A method and jacking assembly used for forming a concrete foundation pierhead. The pierhead is attached integrally to a foundation and/or floor system. A plurality of pierheads are used for leveling the foundation and floor system. Each of the pierheads include a jacking assembly which is used for jacking the pierhead on top of a vertical support member. The vertical support member may be a helix pipe pier, steel beams, posts, piers and the like. The pier pipe is installed into a ground surface and next to the foundation. The method steps include excavating a hole next to the foundation and installing the vertical support to a selected depth in the ground surface. The jacking assembly is then attached to the foundation and to a top of the vertical support. The pierhead is then poured around the jacking assembly and next to the foundation and floor system and allowed to cure.