Abstract: An exhaust heat recovery boiler includes: a duct casing in which exhaust gas flows; a tubular extending portion extending upward from the duct casing; a heat exchanger tube located in the duct casing; a hammering rod connected to the heat exchanger tube in the duct casing and passing through an inside of the extending portion, the hammering rod including an upper part projecting to an outside of the extending portion; and an annular sleeve attached to the upper part of the hammering rod through a packing. The extending portion includes an upper flat surface which is located at an upper end of the extending portion, realizes a seal between the upper flat surface and a lower surface of the sleeve, and is annular and flat.

Abstract: An improved transition coupling for a helical soil pile assembly transfers a compression load between two coupled shaft segments with little or no compression loading on the bolts that fasten the parts together. The coupling body has a shaft-receiving socket that extends axially into the body from one end to a socket bottom that axially abuts the end of one of the shafts. The body also has at least one shoulder between its ends that extends laterally outward and faces toward the end remote from the socket. A cylindrical portion of the body, which fits closely within the hollow end of the other shaft, extends axially toward the socket end up to the shoulder, which is adapted to abut the end of that shaft. At least one pair of aligned transverse holes in the body is adapted to receive a fastener.

Abstract: Disclosed are apparatus and corresponding methodology for providing a base support, such as including concrete, and used such as for a wind-driven generator. Precast concrete cylinders are stacked in place upon a platform that may be partially precast and partially cast in place during assembly and supported, in certain embodiments, by plural concrete legs, the other ends of which are supported on a unitary or subdivided concrete foundation. In other embodiments, the platform may be supported by ribbed concrete panels. The concrete cylinders are glued together using an epoxy and then secured by an internal vertical post tension system extending from the platform to the upper most cylinder. Different types of concrete are used between upper and lower sections of the stacked cylinders. The lower section uses reinforced concrete while the upper section used ultra high performance fiber reinforced concrete.

Abstract: A composite pile is comprised of two or more rigid hollow tubes interconnected together end-to-end by a pile connector. A boring head is secured to a leading lower end of a lowermost one of the tubes. A force transmitting member is removably connectable to a top end of an uppermost one of the rigid hollow tubes to receive a driving force for driving each of the two or more rigid hollow tubes into the ground. The pile connector has opposed axially aligned projecting pile connecting members extending from opposed parallel faces of a transverse impact transfer disc and extend a predetermined distance in adjacent open ends of the tubes to maintain the tubes in alignment with one another.

Abstract: A foundation for structures, with a combination of pile-like support elements (11) and a load distribution layer (12) which is arranged above the support elements and has an incorporated three-dimensional honeycomb structure.

Abstract: An underpinning pile assembly for supporting a structure upon the earth has at least one steel pipe, at least one concrete pile segment positioned above the steel pipe, and a transition member interposed between the steel pipe and the concrete pile such that the load of the concrete pile is supported by the steel pipe. The steel pipe includes a plurality of steel pipe segments extending in end-to-end relationship in generally vertical alignment. A key member is received in slots formed in the respective ends of the first and second segments. The plurality of concrete pile segments includes a strand affixed in holes formed through the plurality of concrete pile segments.

Abstract: Pile splice assemblies, pile systems involving such assemblies and methods for splicing piles are provided. In this regard, a representative method includes: using strand locking devices to attach first and second anchors to respective strands of first and second piles; and securing the first and second anchors to each other.

Abstract: A helical anchor capable of use in high load-bearing capacity applications involving extreme drive torque conditions, the anchor having a main drive shaft machine fabricated with an integrally formed hardened alloy steel coupling section that is adapted to mate with a similarly hardened and integrally formed corresponding coupling section of an extension shaft. The coupling sections are formed of seamless high-carbon heat-treated alloy steel which is quenched and tempered to a yield and tensile strength approximating 135,000 psi, and inertia friction welded to the hot-finished seamless alloy steel tubing utilized in the formation of the remainder of the drive and extension shafts.

Abstract: I have invented an apparatus for creating an adjustable foundation, for residential and light commercial structures, that are supported on concrete drilled piers or concrete pad footing supports. The apparatus is an adjustable pier/footing cap, added to conventional drilled piers/footings at the time of foundation construction; said drilled piers are commonly used to support a building foundation in expansive soil areas and/or in other areas where upper bearing soils are weak or incompetent. The adjustable pier/footing caps are partially imbedded in the concrete drilled piers/footings when the piers/footings are poured and then into the foundation walls of the building when said foundation walls are poured. Upon settling or upheaval of the foundation, the adjustable pier/footing caps can be adjusted to lower or raise the building without replacing the drilled pier/footing with an expensive remedial piering device, and without substantial excavation around the foundation.

Abstract: Piles are spliced using a first splicer element comprising a first splicer face and a cross-section sized and contoured to mate with and press firmly against first faces of a pair of piles to be spliced; together with a second splicer element comprising a second splicer face and a cross-section sized and contoured to mate with and press firmly against second faces of said pair of piles to be spliced; together with an inter-facial connection and distance-adjustment apparatus for connecting said first and second splicer faces together firmly about said first and second faces of said pair of piles to be spliced, and for increasing or decreasing an interfacial distance between said first and second splicer faces at will.

Abstract: The invention provides a structure of a pile head joint portion and a pile had fitting tubular body which can absorb an execution error for constructing a pile leading to a problem in the case of precasting a board for supporting an upper structure in order to intend to shorten a process, and can improve a strength of the pile head joint portion. A precast board (5) is manufactured by embedding a pile head fitting tubular body (2) which is constituted by a side plate (23) forming a pile head fitting tubular body (2) and a closing plate (22) closing open one end of a tube body, and forms an opening portion (26) in another end open so as to freely fit a pile head. The pile and the board are integrally formed by fitting the pile head portion to the pile head fitting tubular body (2) after constructing the pile, and charging an injection material (4) into the pile head fitting tubular body (2).

Abstract: An apparatus and a method are provided for lifting and leveling an existing building from a position underneath the existing building. At least a first non-cylindrical support section having a substantially rectangular shape and first and second ends is located within the earth at a position underneath the existing building. A cap support section is placed in contact with the second end of the first non-cylindrical support section. A jack is disposed on the upper side of the cap support section and raised until the foundation of the existing building has been lifted to a desired height. The non-cylindrical support section has low bearing and high friction characteristics. The low bearing characteristics enable the apparatus to be driven further into the earth than cylindrical pilings that are commonly used to lift and level existing buildings. The high friction characteristics assist in maintaining the stability of the apparatus once it has been installed.

Abstract: The present invention, the objective of which is to provide a pile connecting structure of high workability capable of connecting upper pile and lower pile to each other simply and accurately, and preventing the pile diameter from becoming a large diameter even at this connecting portion, concerns a pile connecting structure for connecting upper pile and lower pile to each other, by interposing a connecting plate of about the same diameter as the piles, at the connecting portion between the upper pile and the lower pile, wherein the end plate of either one of the upper pile or lower pile and the connecting plate are fixed by screwing bolts inserted in circular-shaped bolt inserting holes formed in the connecting plate to the bolt hole in the end plate of the pile on one side, and the end plate of the other pile and the connecting plate are fixed, in the state where the head of the bolts screwed to the end plate of the pile on the other side is inserted in the large diameter portion of heteromorphic bolt inser

Abstract: A wood support piling is reinforced by a composite wrapping. The composite wrapping is formed on the wood piling by a filament winding process. Filament strands are impregnated with resin and wrapped around the wood piling under tension. The resin is allowed to cure to form a seamless layer which is uniform in thickness and materials. The composite wrapping is bonded to the wood piling and applies a compressive force on the wood piling to improve its strength characteristics. The composite wrapping may be applied to a portion of the wood piling where reinforcement is needed so that the piling can be manufactured economically. The composite wrapping protects the piling against deterioration and reduces the need for chemical preservatives which are harmful to the environment.

Abstract: A method of rapidly installing a composite pile structure of timber pile sections and a pre-selected connector having an opening smaller than a transverse dimension of a working end of a timber pile section. The lower pile section is driven into the ground to a convenient distance, the connector is driven onto the lower pile and the upper pile driven onto the connector, and the connection is rapidly made rigid.

Abstract: A woodpile connector has a tubular body defined by an open-end lower portion and an open-end upper portion. The upper portion and the lower portion are fixedly connected, at their free ends, to a separating plate, which forms a transverse flange extending outwardly from an exterior periphery of the connector body. The open ends of the connector body have beveled edges to facilitate engagement of the connector portions with abutting sections of the woodpile. By aligning the connector portions in relation to the pile sections, while forcing the connector portions into the pile sections, alignment of the pile sections is achieved even when the pile sections do not have evenly cut connecting surfaces.

Abstract: A foundation pile, has at least one tensioning tendon which is elongated. A tubular wall forms a hollow conduit located around the at least one tendon so that a space remains between the tensioning tendon and the hollow conduit. A structural tubular element is located around the hollow conduit and composed of a non-metallic material. A tubular layer of a composite material is located around the structural tubular element and connected with the latter. A friction coating applied on an outer surface of the layer of composite material.

Abstract: An economical, high strength, highly corrosion-resistant, multi-section concrete support structure includes a first concrete section attached to a second concrete section. The first concrete section consists of a first concrete type and the second concrete section consists of a diverse, second concrete type.

Abstract: A method for connecting a standard sheet pile equipped with a standard locking element to the flange of a standard girder (31). First the initially flat edge (39) of the flange of the girder (31) is given an undulating profile having of a longitudinal series of bosses (40,42) cantilevered with respect to the flange of the girder (31). Next a connecting profile (30) including an inwardly flaring groove (36) is slotted onto the undulated edge so that the cantilevered bosses (40,42) can fit into said groove (36) and laterally lock the connecting section (30) on the undulated edge. The connecting section (30) being used is a hybrid profile which includes on the opposite side to the groove (36) a standard locking element (34) complementary to the standard locking element of the sheet pile. Into this locking element (34) is interlocked the standard locking element of the sheet pile to form a standard sheet pile joint therebetween.

Abstract: A multipurpose, combined and pre-casting pile assembly, comprises an anchoring and extending piles configured in a shape of the Star of David which includes three V-shaped longer extensions and three V-shaped shorter extensions alternatively arranged. The center of the anchoring and extending piles have a hexagonal passage and a plurality of holes are arranged around the hexagonal passage. One end of the extending pile unit can be fixedly attached to the anchoring pile unit and another end of the extending pile can be connected with another extending pile unit by the use of connecting rods received in the holes arranged about the hexagonal passage. When two anchoring and extending pile units are spaced from each and the V-shaped longer extensions are aligned with each other, a continuous slab having a V-shaped groove at both sides can be disposed between two adjacent anchoring and extending piles units such that an embanking wall or water dam can be configured.

Abstract: Damaged sections of existing piles are replaced with a replacement pile section that includes various segments, including a jack section for sizing and preloading the replacement pile section to original design loads and strengths. The replacement pile section includes at least one coupler having a jack section, which includes a jack for applying a design load to the pile and a plurality of jack screws that are adjusted to accept the design pile load; the hydraulic jack is removed through an access opening, so that the jack screws carry the load; the cavity in the jack section is filled with grout, such as concrete through the access opening, which is then sealed. Other sections of the replacement pile section include, for example, intermediate pile sections, shock absorbing sections, and additional couplers. An alternative embodiment employs two or more balanced hydraulic jacks bearing against external jack flanges fastened to the pile above and below the replaced section.

Abstract: A method for installing a composite timber and concrete piling system provides metallic tube that is partially filled with concrete. The unfilled portion of the metallic tube defines a splice member when the metallic tube is driven into a timber pile. The timber pile member is first driven into the earth at a selective position and at a selective orientation but a partial distance which leaves a small portion of the timber pile exposed above ground. The metallic tube is then placed on top of and aligned with the axis of the timber pile. The unfilled portion of the metallic tube forms a splice. The concrete filled metallic tube is forced downwardly until the unfilled portion of the tube is embedded into the exposed portion of the timber pile and wherein the concrete in the tube approaches the top of the timber pile. During driving, the concrete in the tube contacts the top of the timber pile.

Abstract: A self-piloting compressible piling is provided comprising a plurality of pre-formed pile sections having bores therethrough and adapted to be arranged in end-to-end relation such that the bores are concentrically collinear. An auger plate is positioned beneath the lowest of the sections and has an upper face and lower face. The lower face of the plate has a plurality of curved blades extending therefrom. The plate further has a flared bore concentrically collinear with the bores of the piling sections through its center such that the diameter of the hole is greater on the upper face than on the lower face. A tension-bearing cable having a collapsible lock-jaw mechanism secured to one end thereof is provided which is extendable from above the highest of the piling sections through the bores of the sections and the bore of the plate and engageable with the lower face of the plate for loading the sections and the plate in compression.

Abstract: A post construction kit for constructing a post implanted in a base terrain which includes a first post section adapted for implantation in the base terrain, at least one other post section adapted for interconnection with the post section to be implanted underground, and an interconnecting arrangement for interconnecting the underground section and at least one other post section.

Abstract: A method and apparatus for lengthening or shortening a pole supporting lines, such as electric power and telephone lines. The method includes the providing of a stub adapted to be joined in abutting end-to-end relationship with the lower end of the pole to form a lower extension and support for the pole. The pole is raised vertically until its lowermost end portion is clear of the ground so that a lower end portion of the pole can be sized, as necessary, for reception by a mechanism joining the pole and stub. If necessary, the length of the pole is also shortened to provide a desired combined length. After the lower end has been sized, the pole and stub are joined to each other so that they constitute, in effect, a substantially rigid continuation of each other. The pole and stub are then vertically lowered into the ground to a required depth and the ground is consolidated around the base of the stub. The apparatus includes appropriate structure for accomplishing the preceding method.

Abstract: A composite pile includes a wooden section and a helically corrugated shell secured to the wooden section by a transition fitting. The transition fitting is fitted telescopically to a tubular end portion of the shell by a circumferential weld which is embedded in the wooden section. Because the weld is very strong and is disposed within the wooden section, the strength of transition-to-shell connection is increased over prior composite piles. The pile manufacture includes the step of removing corrugations from the end of a shell by squeezing the end of the shell between radially movable, annular die segments.

Abstract: A concrete pile fitted with a special slightly tapered concrete tip of larger area. The tip has a central open socket for receiving concrete poured in after the pile is in place.