An example embodiment of the present invention provides a pole cap for covering an end of a pole. The pole cap comprises a sheet that includes a central portion, a first strip, and a flap that has a slit. The central portion is configured to cover a base surface of an end of a pole. The first strip is configured to fold over an edge of the base surface and circumferentially wrap around a portion of a curved surface of the pole. The flap is configured to fold over the edge of the base surface.

A post sleeve provides a substantially permanent base for supporting a post for a fence or sign, and from which one post can be removed and replaced with another post. The sleeve includes a concrete body that is poured on site, using a sleeve core prepositioned in the post hole, and around which wet concrete is poured. After the concrete is cured, the core is removed, leaving a post sleeve cavity configured to receive a post. The core can be rigid, or can include a flexible shell and stiffener. A preformed post sleeve top can be attached to the sleeve core and positioned therewith in the post hole, to become a permanent part of the post sleeve, once the concrete cures. A drain is attached to the core, and remains in the sleeve when the core is removed, and can be a percolation chamber, or passage extending below the sleeve.

An axial reinforcement system is disclosed that provides a shell (i.e., a form or jacket) that protects a weight-bearing member (e.g., a cement column) from a corrosive environment and which also substantially increases the structural capacity of the weight-bearing member. The shell is integrated with positioners and reinforcing elements, the combination of which offers several advantages over conventional shells. The positioner is attached directly to the shell and the positioner is, in turn, secured to a reinforcing element, which can be a reinforced steel, such as rebar, or a carbon fiber reinforced polymer material. The axial reinforcement system has been found to substantially increase the structural rigidity of the weight-bearing member, while at the same time protecting the weight-bearing member from corrosion and is also simple to install.

An axial reinforcement system is disclosed that provides a shell (i.e., a form or jacket) that protects a weight-bearing member (e.g., a cement column) from a corrosive environment and which also substantially increases the structural capacity of the weight-bearing member. The shell is integrated with positioners and reinforcing elements, the combination of which offers several advantages over conventional shells. The positioner is attached directly to the shell and the positioner is, in turn, secured to a reinforcing element, which can be a reinforced steel, such as rebar, or a carbon fiber reinforced polymer material. The axial reinforcement system has been found to substantially increase the structural rigidity of the weight-bearing member, while at the same time protecting the weight-bearing member from corrosion and is also simple to install.

An example embodiment of the present invention provides a pole cap for covering an end of a pole. The pole cap comprises a sheet that includes a central portion, a first strip, and a flap that has a slit. The central portion is configured to cover a base surface of an end of a pole. The first strip is configured to fold over an edge of the base surface and circumferentially wrap around a portion of a curved surface of the pole. The flap is configured to fold over the edge of the base surface.

A post sleeve provides a substantially permanent base for supporting a post for a fence or sign, and from which one post can be removed and replaced with another post. The sleeve includes a concrete body that is poured on site, using a sleeve core prepositioned in the post hole, and around which wet concrete is poured. After the concrete is cured, the core is removed, leaving a post sleeve cavity configured to receive a post. The core can be rigid, or can include a flexible shell and stiffener. A preformed post sleeve top can be attached to the sleeve core and positioned therewith in the post hole, to become a permanent part of the post sleeve, once the concrete cures. A drain is attached to the core, and remains in the sleeve when the core is removed, and can be a percolation chamber, or passage extending below the sleeve.

A continuity connection system is disclosed that is highly durable, simple to install, and substantially increases the structural capabilities and weight-bearing capacity of a shell (i.e., a form or jacket). The shell can be used to protect a weight-bearing member (e.g., a cement column) from a degrading environment. The shell can have one or several layers of carbon fiber fabric (e.g., spaced apart longitudinally) wrapped around an interior of the shell or embedded within the shell. The continuity connection system is used to provide continuity between two ends of the carbon fiber layer, and can be made up of the carbon fiber fabric reinforcement layer, two pockets, and a laminate having ends positioned in each pocket. The carbon fiber laminate traverses a seam/separation of the carbon fiber fabric and/or a seam of the shell and can be retained in place within the pockets with an appropriate epoxy, for example.

Disclosed is a water-permeable pipe pile system capable of accelerating soil consolidation. The system includes a hollow pile, an aerating device, and a drain device. Holes are evenly distributed on the wall of the pile, the bottom of the pile is closed, and a gas-tight gland is provided on the top of the pile. The aerating device includes a gas pipe and a gas pump, the lower end of the gas pipe passing through the gas-tight gland and extending into the cavity of the pile, and the upper end thereof connected to the gas pump. The drain device includes a drain pipe and a water pump, the lower end of the drain pipe passing through the gas-tight gland and extending towards the bottom of the cavity of the pile, and the upper end thereof connected to the water pump. Combining advantages of a water-permeable pipe pile and features of the high-pressure gas splitting technology, the water-permeable pipe pile system can accelerate dissipation of excess pore water pressure in the surrounding soil mass and rapidly increase the skin friction of the pile. Requirements on the bearing capacity of pipe piles and the service life of a construction are thus satisfied and desirable economic effects are achieved. Besides, the method of using the system is simple.

A pile repair apparatus includes a metal clamp having left and right brackets connected by a hinge member. A friction surface is positioned along an inner surface of the metal clamp to improve the connection of the apparatus to a pile to be repaired. A platform is connected to a top surface of the metal clamp, and a means for providing buoyancy to the pile repair apparatus can be secured to the platform. The buoyancy of the apparatus allows a diver to move and to submerse the apparatus easily and to position the apparatus around a pile to be repaired by opening and closing the apparatus about the hinge member. The apparatus is secured to the pile by inserting a bolt through corresponding apertures in the left and right brackets of the apparatus.

A friction reducing jacket is applied to a pile. The jacket comprises a sheet material and is formed in a shape that can conform to the exterior surface of the pile. The sheet material comprises a thermoplastic, e.g., polyolefin, and a slip agent, e.g., amide. A method of shielding a pile from downward force exerted by backfilled earthen materials during settlement includes the steps of providing a friction reducing jacket constructed of sheet material comprising a thermoplastic polymer and an amide slip agent; driving the pile into soil, leaving a portion of the pile above the soil exposed; wrapping the friction reducing jacket around the exterior surface of the exposed portion of the pile such that the interior surface of the jacket contacts the exposed exterior surface of the pile; and placing backfilled earthen materials around the jacketed section of the pile.