Novel pre-stressed concrete cylinder pipe with pre-embedded acoustic emission sensor and distributed optical fiber, and manufacturing and monitoring methods thereof

A manufacturing method of a novel pre-stressed concrete cylinder pipe with a pre-embedded acoustic emission sensor and a distributed optical fiber, comprising the following steps:

• S1:
• manufacturing a socket steel ring, a spigot steel ring and a steel cylinder used for connecting a pipeline joint, and welding the socket steel ring and the spigot steel ring to two ends of the steel cylinder;
• S2:
• manufacturing a connecting member for connecting the steel cylinder with an external sensor fixing member, and fixing the connecting member on the steel cylinder;
• S3:
• pouring a pipe core concrete;
• S4:
• erecting a cured pipe core on a rotary platform, and winding a pre-stressed steel wire;
• S5:
• roll-spraying an inner mortar protective layer;
• S6:
• mounting a distributed optical fiber sensor;
• S7:
• roll-spraying an outer mortar protective layer;
• S8:
• roll-spraying an epoxy coal tar pitch anti-corrosive coating;
• S9:
• manufacturing a fixing member for mounted an external sensor, and fixing the fixing member on the connecting member by a bolt;
• and
• S10:
• after hoisting a pipeline to the site for positioning, coating a high-performance adhesive coupling agent on a surface of the acoustic emission sensor, mounting the acoustic emission sensor in the fixing member for adhesion and fixation, and subsequently connecting the acoustic emission sensor and the distributed optical fiber sensor with an acquisition instrument and an optical fiber demodulation instrument respectively, so that a pipeline wire breakage event is monitored in real time.