1199results about "Foundation repair" patented technology

A shower plate 122 has protrusions 22 formed on the front face used with a first electrode in a plasma CVD apparatus. A plane-surface portion 23 is left around apertures of gas inlet holes 21 formed in the shower plate 122. With protrusions 22 being formed, a surface area of the first electrode is increased.

A stiffening member, as well as a diaphragm of a building in which the stiffening member is used, is disclosed. The diaphragm includes a horizontal wide-flange beam, a corrugated deck, and a corrugated stiffening member. The stiffening member is an elongate, corrugated strip. The stiffening member's corrugations are formed by a series of U-shaped portions that alternate with, and are integrally connected to, a series of horizontal upper portions. Each U-shaped portion consists of three planar portions: two substantially vertical side portions and one horizontal floor portion. Each U-shaped portion is reinforced with two parallel raised ribs. In a second embodiment of the stiffening member, the U-shaped portion is reinforced with two parallel tab portions attached at the sides of the stiffening member. The stiffening member nestingly overlies the corrugated deck, and is attached to the deck and to the underlying horizontal beam with either welds or pins.

The present application is directed toward slotted tracks, in particular slotted tracks for an exterior wall application. Embodiments can include tracks with elongate reinforcing ribs on the tracks' flanges and/or web, tabs and/or protruding ribs for supporting and positioning exterior sheathing elements, second slot patterns along the length of the web of the track to allow for attachment and drift movement of the track with another wall component, and guide marks to identify proper locations for attachment of fasteners.

A floor plug (40) is disclosed having an upper portion (41) with a top plate (44) and a neck (48), a lower portion (42) with a bottom plate (51), and post (32) which coupled the two portions together and draws them towards each other sandwiching the floor therebetween. The upper portion is positioned within the bore hole (20) and the lower portion is coupled to the post so as to be threadably drawn against the underside of the floor. Once the adhesive has cured a viscous smoothing compound or concrete floor leveler is poured over the floor plug upper portion and surrounding concrete floor area. If necessary, the concrete floor leveler material is smoothed to provide a generally smooth or level surface.

The present invention provides processes for infrastructure repairs and geo-stabilization with a low-exotherm polyurethane foam, grout or elastomer. The inventive process involves at least partially filling a cavity in the infrastructure or earth with a low-exotherm polyurethane foam, grout or elastomer made from at least one polyisocyanate, at least one isocyanate-reactive compound and an organic particulate material capable of absorbing heat, optionally in the presence of one or more chosen from water, surfactants, pigments, catalysts, alkali silicates and fillers and curing the polyurethane foam, grout or elastomer. The inventive processes may improve the repair of buildings, foundations, roads, bridges, highways, sidewalks, tunnels, manholes, sewers, sewage treatment systems, water treatment systems, reservoirs, canals, irrigation ditches, etc.; and in the geo-stabilization of mines, caves, wells, bore-holes, ditches, trenches, pits, cracks, fissures, craters, postholes, potholes, sinkholes, wallows, waterholes and the like. The inventive solid polyurethane compositions are made from at least one polyisocyanate, at least one isocyanate-reactive compound, and an organic particulate material capable of absorbing heat, optionally one or more chosen from water, surfactants, pigments, catalysts and fillers. Such solid polyurethane compositions may improve reaction injection molding (RIM), spray elastomer and cast molding processes.

Methods are provided for repairing an existing structure to cover at least a portion of the existing structure with a repair structure. Such methods comprise mounting one or more standoff retainers to the existing structure; coupling one or more standoffs to the standoff retainers such that the standoffs extend away from the existing structure; coupling one or more cladding panels to the standoffs such that the panels are spaced apart from the structure to provide a space therebetween; and introducing a curable material to the space between the panels and the existing structure, the panels acting as at least a portion of a formwork for containing the curable material until the curable material cures to provide a repair structure cladded, at least in part, by the panels. Corresponding apparatus for effecting such methods are also provided.

A method is provided for repairing a defect in a noise suppression panel. The method may be used to repair defects in a panel that may occur during the manufacture of or normal use of the panel. The method includes the steps of removing the defect from the noise suppression panel to create a cavity therein, forming material comprised of a material having acoustic damping properties into an insert configured to mate with the cavity, and placing the insert into the cavity.

Provided is a wallboard repair clip which includes a patch wallboard receiving structure for contacting inner and outer surfaces of a patch wallboard, an existing wallboard receiving member and a securing structure.

An existing vertical monopole tower is reinforced by a plurality of vertically extending metal reinforcing members in the form of elongated channel members or angle plate members or ribbed plate members. The reinforcing members have longitudinally spaced holes which align with vertically spaced holes in the tower wall, and blind fasteners extend through the aligned holes to secure the reinforcing members to the tower. The fasteners provide for transferring only tensile forces or tensile and shear forces to the reinforcing members. Vertically aligned reinforcing members have adjacent end portions spliced together by splice plates and blind fasteners, and the splice plates are fastened to the web portions of the channel members or the ribs of the rib plate members or the wing portions of the angle plate members. Shear plates and pin assemblies may also be used to transfer shear forces and in splicing vertically aligned reinforcing members.

The invention relates to a method for reinforcing an underwater structure by using fiber reinforced composite material lattice ribs, which comprises the following steps: treating the concrete surface of the underwater structure to be reinforced; coating at least one layer of the fiber reinforced composite material lattice ribs on the surface of the underwater structure to be reinforced; setting an isolator outside the underwater structure to be reinforced, and making the height of the isolator be more than or equal to the height of the fiber reinforced composite material lattice ribs coated on the surface of the underwater structure to be reinforced; sealing concrete at the bottom of the isolator; and filling underwater epoxy resin or underwater non-dispersed mortar or underwater non-dispersed concrete into the clearance between the isolator and the structure to be reinforced. The process is simple; because the treatment of abandoning and preventing water is not needed during construction, and the periphery of the underwater structure to be reinforced does not need to arrange a cofferdam, the construction process has little influence on a navigation channel; and the reinforcing cost is low, the reinforcing is quick, the construction period is short, and the durability of the structure can be effectively improved.

A kit for repairing holes in drywall having two principal components, a patch itself and a moistening device for attaching the patch to the surface upon which the patch is intended to be placed. The patch containing an inner portion configured for insertion within an opening and an outer portion configured to attach and connect with the wall upon which the patch is placed. The moistening device, preferably a form of spray on texture provides a means for adhering the patch to the surface upon which it is placed and also provides a means for covering the patch so as to blend with the surrounding surfaces.

The invention relates to a geotechnical and underground engineering technology field, particularly to a box-raft pressure-bearing type foundation underpinning and construction reinforcing method for tunnels across pile foundations of a bridge above a river. The method of the invention comprises: reinforcing abutment foundation of both sides of the bridge, reinforcing the riverbed outside the cofferdam construction and abutment, strengthening bridge supports, excavating pits under cofferdam bridges, strengthening expanding plate-type foundations inside the pits and ground base under the plates, as well as shield tunneling and removing obstructive file base. The method can smoothly complete construction and guarantee smooth shield tunneling while ensuring normal passage of existing bridge structure, further can effectively reduce construction risk, accelerate construction process, reduce cost and reduce influence to environment to a maximal extent.

In the structure for reinforcing a concrete member and the reinforcing method of the present invention, a reinforcing sheet is arranged and joined to a various kinds of concrete member, such as column, beam, wall, floor, and the like, by applying the reinforcing sheet to the surface of the concrete member and attaching to the fixing anchors joined to the concrete member or the other concrete member surrounding the concrete member. The fixing anchor comprises a large amount of reinforcing fiber, and is obtained by bundling a part of the reinforcing fiber. The unbundled portion of the fixing anchor is spread along the surface of the concrete member. The reinforcing sheet is over-lapped to the unbundled portion using resin adhesives. In addition, reinforcing fibers, such as carbon fiber, aramid fiber, glass fiber, and the like are preferably used as the material comprising the fixing anchor and reinforcing sheet. Thereby, the reinforcing member can be joined via the fixing anchor to the concrete members. Therefore, it is possible to securely join the edges of the reinforcing member, and reliably exert the reinforcing effects on the concrete member.

A flashing kit seals or waterproofs a hole in a wall with a conduit penetrating therethrough. The flashing kit generally includes a first flashing member adapted to be mounted to the wall adjacent the hole, a second flashing member adapted to be mounted to the wall adjacent the hole and the first flashing member, a third flashing member wrapped onto the conduit adjacent the first and second flashing members, and a fourth flashing member adapted to be applied to the wall over the first and second flashing members. The fourth flashing member has an aperture for receiving the conduit and may include one or more leaves spaced about the aperture. The leaves are adapted to bend in order to accommodate the conduit and are covered by a fifth flashing member wrapped around the conduit.

The present invention relates to processes for consolidating an underground formation with a consolidating mineral. The consolidating material is a carbonate and is produced from an alkaline treatment fluid containing, in at least some embodiments, environmentally friendly and inexpensive components. In one embodiment, the process can be applied to consolidation of an underground formation during or following drilling. The present invention also provides a treatment fluid suitable for use in such processes.

An improved anchor for securing a reinforcement strip to a concrete structure.

The invention relates to an underground storey-adding process of a frame structural building by a one-by-one independent foundation underpinning method. In the process, top beams and top supports of the building with a proposed basement and columns and foundations of the completed basement jointly support an upper structure of the building, and then earth excavation and construction of the columns and the foundations of the residual uncompleted basement are continuously carried out. Earth excavation and top support are simultaneously performed; after the original foundations are removed, the load of the upper frame columns is transferred to the adjacent foundations around the columns through the top beams and transferred to earth through the foundations; and after new foundations and an lower ground level underground frame column are constructed, the load of the upper frame columns can be jointly supported by the new foundations, beam supports and the adjacent foundations. Compared with 'a slab foundation underpinning method' in which the upper structure is simply supported by soil mass under slabs, the method is more reliable and can complete underground storey-adding in areas with worse soil property; compared with the underpinning mode of removing the foundations of the whole building simultaneously, the method is more safe; and even though engineering accidents happen, the building is locally but not integrally unstable.