摘要:
The system, method and apparatus for installing a piling generally includes a hollow piling having an inner surface and an outer surface with the piling having a lower end with a friction collar secured about the lower end. The friction collar is manufactured to have an inner surface wherein the inner surface includes portions with various diameters. The friction collar is placed over the lower end of the piling such that the lower end of the piling is aligned with an intermediate portion of the inner surface of the friction collar. A tapered die is pressed into the bottom of the piling to expand the lower end of the piling outwardly such that it extends into the intermediate portion of the friction collar. This secures the friction collar to the end of the piling. Optionally, an end cap may be placed over the piling and/or friction collar.
摘要:
Extensible shells and related methods for constructing a support pier are disclosed. An extensible shell can define an interior for holding granular construction material and define a first opening at a first end for receiving the granular construction material into the interior and a second opening at a second end. The extensible shell can be flexible such that the shell expands when granular construction material is compacted in the interior of the shell. A method may include positioning the extensible shell in the ground and filling at least a portion of the interior of the shell with the granular construction material. The granular construction material may be compacted in the interior of the extensible shell to form a support pier.
摘要:
There is provided an apparatus for securing a hollow pile in the ground. The pile has a wall with an inner surface. The apparatus is positionable within the pile. The apparatus includes a housing having an interior and a plurality of apertures. The apparatus includes a plurality of spaced-apart protrusions slidably extending through the apertures of the housing. The protrusions are moveable outwards from the housing for selectively deforming portions of the wall of the pile and creating anchor knobs in the pile upon pressurized hydraulic fluid being applied to the interior of the housing. The apparatus includes a plurality of support members extending outwardly from the housing. The support members are shaped to selectively abut and support the inner surface of the wall of the pile when the anchor knobs are being formed.
摘要:
A method of installing a structure on a bed of a sea, estuary or river from a floating installation vessel is described. In such a method a plurality of attachment piles and corresponding installation rigs are attached to the structure prior to deployment of the structure. In addition, respective umbilical control cables are connected to the installation rigs prior to deployment of the structure. The structure is deployed from a floating vessel to a bed of a sea, estuary or river, such that, when the structure is located on the bed, the umbilical control cables do not support the structure or installation rigs. A single installation operation for each attachment pile is performed, in which operation an installation rig is activated so as to install fully the corresponding attachment pile in the bed, without removal of the umbilical control cable or the installation rig therefrom.
摘要:
The invention relates to a guide frame for guiding a cutting apparatus within a pipe incorporated into the ground, having a framework body which can be inserted into the pipe and comprises a guide, along which the cutting apparatus can be displaced, a bracing means for tensioning and fixing the framework body in the pipe, and an adjusting means, with which the cutting apparatus can be adjusted within the pipe in a transverse direction relative to the pipe axis. The invention further relates to a method for anchoring a pipe in the ground.
摘要:
A method of installing a foundation system for securing the tendons of a TLP to the ocean floor. The foundation system is installed in templateless operations in which a pile is secured to the ocean floor and a tendon receptacle is secured to the pile such that the load from a tendon secured therein is transferred to the ocean floor through coaxially aligned load paths of tendon-to-tendon receptacle-to-pile-to-ocean floor.
摘要:
A Device for transferring a vibrating movement to a rigid pipe for letting it penetrate into or removing it from a bed in upright or inclined position, comprises a clamping member for clampingly holding the upper end of the pipe for transfer of the vibrating movements thereto. The clamping members can be biased away from each other for clampingly engaging—exclusively—the inner surfaces of the pipe. The device further comprises a body to be attached to a vibrator block. The clamping members form a rigid unity with the body, considered in the axial direction of the pipe.
摘要:
Marine structure with one or more suction piles for embedment into the subsea bottom and with buoyancy sufficient such that the structure can be transported over water independently floating, including in an upright position, wherein the buoyancy is concentrated near the suction piles, and may be substantially in line with the suction piles, and wherein the buoyancy is such that if the suction piles touch the subsea bottom with their undersides, at least part of the buoyancy projects above the water surface.
摘要:
The invention relates to a piling apparatus for driving a tube (1) closed at the lower end by a base plate into the ground (6) to form a concrete foundation pile. The apparatus comprises a piling hammer with falling weight (4) and an impact cap (3) acting on the tube (1). The tube (1), at the lower end thereof in the vicinity of the base plate (6), is provided with an inwardly thickened edge (2), while the piling hammer (3,4,5) is provided within the tube (1) and has an impact cap (3) resting in a centered position on both the thickened edge (2) and the bottom plate (6), said piling hammer (3,4,5) comprising a self-centring guide device (9,10,11) acting on the inner surface of the tube (1).
摘要:
A screw-on splicer for use in driving composite pipe-shell piles and a screw-on tip for shell piles. Each has an outer diameter at least about 2 inches greater than the O.D. of the shell. An enlarged tip for shell piles, comprises a mass of concrete encased in a non-tapered corrugated shell and having a corrugated shell socket for receiving the shell stem.