摘要:
A driven pile comprising a substantially cylindrical shaft, wherein the shaft provides a first pile end and a second pile end, wherein a socket is arranged on the driven pile in the region of the second pile end, wherein the socket or the driven pile has an abutment in the region of the second pile end so that a further driven pile can be inserted with a first pile end as far as a maximum insertion depth defined by the abutment, wherein the socket and/or the driven pile in the region of the second pile end provides or provide in the interior at least one undercut portion extending at least substantially to the abutment.
摘要:
An excavator is provided, in which the excavator includes a head that is slidably mounted on a leader, and a position fixture assembly slidable along the leader via the head. The position fixture includes a support plate including a groove in it top surface, with a first rod slidable within the groove. The position fixture also including a locking unit that serves to engage a base member, allowing the base member to be elevated when the head is elevated.
摘要:
A support shoe for a concrete pillar has a base plate and two lateral plates arranged at lateral edges of the base plate and projecting upwardly at a right angle from the base plate. At least one reinforcement bar is connected to the support shoe for introducing forces into the concrete pillar. The two lateral edges and thus also the lateral plates connected thereto are arranged at an acute angle relative to one another, wherein the two lateral plates are formed as separate components connected to the base plate.
摘要:
This invention relates to a system and method for supporting a building and to a system and method for connecting sections, such as pilings, pipes, conduits, and the like, in an end-to-end, abutting, relationship to form pilings for the support system. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure; and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims under 37 CFR null1.72.
摘要:
Structures with inter-connecting members such as shores, struts, braces and the like which are subject to compression and/or tension stresses can be erected even when the foundation strata do not exactly meet anticipated levels, or when differential settlements occur at base points after loads are applied. At least one of the structural members is in the form of a first elongate section having a hollow mating end, and a second elongate section including a hollow bell-shaped end. The mating end of the first section is slidably received in the bell-shaped end of the second section, and the first and second sections are allowed to slide axially of one another at least during erection of the structure. At a desired time after erection, relative sliding movement between the first and second sections is prevented, thus fixing the length of the structural member.
摘要:
The invention relates to an extension joint for concrete piles of the type in which at least one pin in a first pile penetrates into a recess in a second pile. The end of the pin is provided with a shoulder and is locked in the second pile by means of a wedge having shanks each engaging one side of the pin. The wedge is locked in its driven-in position while being driven in by the bending of the shanks towards each other after they have passed the pin.
摘要:
A reinforced concrete threaded pile provides a generally conically shaped tapered concrete pile member which is provided with a metallic reinforcement core for carrying the torsional and tensile forces created in the pile during its insertion. A metallic head is provided at, for example, the upper portion of the pile, which provides a point for the connection of a sufficient torsional driving force thereto for insertion of the pile. The head member can be metallic, and is substantially integrally connected to the reinforcement core, so that the torsional forces can be developed through the head and the reinforcement core such that torsional and tensile forces are not carried by the concrete to a degree which would cause a failure of the concrete by cracking. The concrete body is provided with an outer surface of spiral threads which has a relatively minor thread pitch that provides for relatively easy insertion of the pile into the desired soil medium and is mechanically compatible therewith. If desired, reinforcement can be provided in the threads. The threads are equally spaced, and a female "soil socket" is formed upon insertion of the pile into the earth, the spiral tapered pile gradually expanding and compacting the surrounding soil as the equally spaced threads push the pile downward.
摘要:
An improved joint for pile sections which have a nut at the ends, fastened such that one of its end surfaces is in the same plane as the end surface of the pile section. The joint being effected by a threaded bolt which engages with the nuts on two cooperating pile sections. The nut is provided with an annular groove having radially-directed locking notches in the bottom. A locking disk is inserted into the groove. The disk has resilient locking tongues with radial edges which are directed against the unscrewing direction and which engage with the notches in the nut.
摘要:
A process for building-up a pre-formed concrete piling while the piling is in place in terrain to form a finished piling foundation of uniform height above reference terrain level having a pre-formed portion and a cast-in-place portion.
摘要:
A precast modular piling system of square-sectioned reinforced concrete sections of standard interchangable lengths are capable of being connected by a joint constituted by a steel jointing piece appearing at either end of the pile sections for purposes of enabling any length of pile to be constructed. Each jointing piece includes a shaped plate secured to the end of a pile section with a framing sleeve extending laterally from each plate. A recess extends inwardly from each corner of the jointing piece through the plate, adjacent parts of the framing sleeve and concrete of the pile section. The recesses are so dimensioned and shaped to receive an end of a substantially I-shaped locking pin which serves to join a driven pile section to a driving pile section upon placement of the respective facing plates in bearing relationship with one another. The abutting surfaces of the and the facing plates are planar to optimize surface-to-surface contact between these parts. The proper location of the locking pins during pile driving and subsequent thereto is maintained by distorting the plates with a hammer or appropriate tool at the shank portion of each recess to prevent the pins from retracting. The spacing between the locking pins and reinforcement bars appearing in the concrete sections at each corner thereof are held to an absolute minimum to assure proper performance of the joint in transmitting loads and stresses during the driving operation and demands of structural support.