2results about How to "Improved seam strength" patented technology

This utility model relates to the field of polymer materials technology, specifically to a geotextile for preventing water seepage after overlapping. It includes a rubber geotextile substrate and a waterproof component. The waterproof component includes two hot-melt pads, two waterproof layers, an mounting component, a protrusion, a fixing component, two connecting components, and a waterproof component. Hot-melt pads are fixed to both ends of the rubber geotextile substrate to strengthen the connection between the substrate and the waterproof layer, preventing leakage. When a connection is needed on the side of the geotextile substrate, the protrusion on the mounting component engages with the limiting groove on the fixing component, and the connection is sealed and strengthened by the connecting components. The waterproof performance is enhanced on the surface of the rubber geotextile substrate through the waterproof layer and the waterproof component. The connection is sealed and strengthened at the joint by the connecting components. This solves the problem of poor sealing at the overlapping parts of existing impermeable geotextiles, which easily leads to water seepage and affects soil stability.

The invention discloses a production method of a winding structure wall pipe with an embedded optical fiber and the pipe. The production method comprises the following steps: preparing a strip: coating the optical fiber with a raw material through an extruder, extruding the strip, cooling the strip and rolling the strip into a disc; the coiled strip is unwound, and the end of the strip penetrates through a heating sleeve and then is fixed to a first fixing ring; the coiled strip is translated in the axial direction of a pipe forming cage, the pipe forming cage rotates, the strip is spirally wound in the axial direction of the pipe forming cage, and the other end of the strip is fixed to a second fixing ring; closing the mold and performing hot melting; the upper mold body located above the pipe forming cage and the lower mold body located below the pipe forming cage are mutually closed, the upper mold body, the lower mold body and the pipe forming cage heat the joint part of the strip, and the spirally wound strip is hot-melted and mutually connected to form the pipe. The optical fiber wound on the outer wall of the pipe can early warn and accurately monitor the problems of leakage, deformation, cracking and the like of the pipe.