A strain optical cable surface laying structure for a tunnel environment

Abstract

The utility model relates to a kind of strain cable surface laying structure for tunnel environment, belong to optical fiber monitoring technical field. Including several laying units, several laying units are fixed in concrete layer, and stress adjustable device is equipped at key node;Strain cable is respectively equipped in the laying unit and stress adjustable device, and the end between adjacent strain cable is connected by fusion welding;Any the laying unit includes lower sealing rubber layer respectively, lower sealing rubber layer is equipped with lower adhesive layer on, upper adhesive layer is equipped with on lower adhesive layer, strain cable is laid between lower adhesive layer and upper adhesive layer, forms sandwich strain cable, the sandwich strain cable is fixed in concrete layer by fixed unit, upper sealing rubber layer is coated on the sandwich strain cable and fixed unit, and the application is convenient and fast time-saving and labor-saving, reduces construction cost, improves construction efficiency;Strain of target node can be adjusted in batches, realizes accurate positioning and strain calibration.

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