Multifunctional intelligent anchor pole and installation arrangement method thereof

Abstract

The invention discloses a multi-functional intelligent anchor rod and its installation and layout method, which comprises non-fusion long gauge distance multi-grating sensor, optical fiber grating multi-point temperature compensation auxiliary sensor, epoxy resin or planting glue, armored optical cable and soft plastic Sleeve; the non-welded long-gauge-length multi-grating sensor and fiber-optic grating temperature-compensated auxiliary sensor are installed in the small groove opened along the longitudinal direction of the anchor rod, and are encapsulated by epoxy resin or planting glue; The grating sensor includes a plurality of long-gauge fiber grating sensing units connected in series. The long-gauge fiber grating sensing unit includes a sleeve, an optical fiber packaged in the sleeve, and a grating written on the optical fiber. The two ends of the optical fiber are respectively fixed on the Anchor section of casing. The invention can be used not only for anchorage and reinforcement in related projects such as civil engineering, tunnels, and mining, but also for monitoring the bearing capacity, stress-strain, and damage of anchor rods, and can be used for surrounding rock support and surrounding rock convergence deformation and stability monitoring.

Description

technical field [0001] The invention relates to a multifunctional intelligent monitoring bolt for tunnels, rock soil and slope engineering, which is mainly used for monitoring the bearing capacity, stress and strain, and damage of bolts in related projects such as civil engineering, tunnels, and mining. Monitoring can also be used for surrounding rock support and monitoring of surrounding rock convergence deformation and stability. At the same time, the anchoring and strengthening effect of the bolt itself has not changed. To its original anchoring and strengthening effect on surrounding rocks, slopes, retaining walls, etc. Background technique [0002] Bolt support is a reinforcement and support method used in surface engineering such as slopes and deep foundation pits, as well as underground chambers such as tunnels and stopes. Bolt support is to change the mechanical state of the surrounding rock itself through the bolt inside the surrounding rock, forming an integral an...

AI Technical Summary

Problems solved by technology

However, at present, there are no relevant patents and related documents in domestic and foreign searches for the use of long-gauge fiber gratings to test and monitor the load-bearing conditions, stress-strain conditions, damage detection, and surrounding rock convergence deformation and stability of rock bolts.

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