A strengthened polyethylene tubular member, where the polyethylene tubular member has an outer surface, a circumference, a wall thickness, an area to be strengthened, and the outer surface of the polyethylene tubular member contains polyethylene. The strengthened polyethylene tubular member contains a fabric layer wrapped around the circumference of the tubular member at least two full rotations and covering the area to be strengthened. The fabric layer contains a plurality of interwoven tape elements with a base layer of a strain oriented olefin polymer disposed between covering layers of a heat fusible olefin polymer. The tape elements within the fabric layer are bonded together and the tape elements adjacent the tubular member are bonded to the tubular member.

A strengthened polyethylene tubular member, where the polyethylene tubular member has an outer surface, a circumference, a wall thickness, an area to be strengthened, and the outer surface of the polyethylene tubular member contains polyethylene. The strengthened polyethylene tubular member contains a fabric layer wrapped around the circumference of the tubular member at least two full rotations and covering the area to be strengthened. The fabric layer contains a plurality of interwoven tape elements with a base layer of a strain oriented olefin polymer disposed between covering layers of a heat fusible olefin polymer. The tape elements within the fabric layer are bonded together and the tape elements adjacent the tubular member are bonded to the tubular member.

A strengthened polyethylene tubular member, where the polyethylene tubular member has an outer surface, a circumference, a wall thickness, an area to be strengthened, and the outer surface of the polyethylene tubular member contains polyethylene. The strengthened polyethylene tubular member contains a fabric layer wrapped around the circumference of the tubular member at least two full rotations and covering the area to be strengthened. The fabric layer contains a plurality of interwoven tape elements with a base layer of a strain oriented olefin polymer disposed between covering layers of a heat fusible olefin polymer. The tape elements within the fabric layer are bonded together and the tape elements adjacent the tubular member are bonded to the tubular member.

A strengthened polyethylene tubular member, where the polyethylene tubular member has an outer surface, a circumference, a wall thickness, an area to be strengthened, and the outer surface of the polyethylene tubular member contains polyethylene. The strengthened polyethylene tubular member contains a fabric layer wrapped around the circumference of the tubular member at least two full rotations and covering the area to be strengthened. The fabric layer contains a plurality of interwoven tape elements with a base layer of a strain oriented olefin polymer disposed between covering layers of a heat fusible olefin polymer. The tape elements within the fabric layer are bonded together and the tape elements adjacent the tubular member are bonded to the tubular member.

It discloses a new type of prestressed steel cylinder concrete pipe with pre embedded acoustic emission sensors and distributed optical fibers; the pipe is composed of an inner layer of concrete, a steel cylinder, a connecting piece, an outer layer of concrete, a prestressed steel wire, an inner mortar protective layer, a distributed optical fiber, an outer mortar protective layer, an acoustic emission sensor, and an external sensor fixing piece; the connecting piece is fixedly connected to the external sensor, and the acoustic emission sensor is located on the external sensor fixing piece and closely adheres to the outer mortar protective layer; a PCCP pipe with pre embedded acoustic emission sensor and distributed optical fiber of the present invention is used to fix the acoustic emission sensor by using a connection piece combined with an external sensor fixing piece.

It discloses a new type of prestressed steel cylinder concrete pipe with pre embedded acoustic emission sensors and distributed optical fibers; the pipe is composed of an inner layer of concrete, a steel cylinder, a connecting piece, an outer layer of concrete, a prestressed steel wire, an inner mortar protective layer, a distributed optical fiber, an outer mortar protective layer, an acoustic emission sensor, and an external sensor fixing piece; the connecting piece is fixedly connected to the external sensor, and the acoustic emission sensor is located on the external sensor fixing piece and closely adheres to the outer mortar protective layer; a PCCP pipe with pre embedded acoustic emission sensor and distributed optical fiber of the present invention is used to fix the acoustic emission sensor by using a connection piece combined with an external sensor fixing piece.