Method for identifying local collapse edge of rock and soil body via distributed spiral parallel line sensor
A helical parallel sensor technology, applied in the detection field, can solve the problems of limited optical fiber deformation, low measurement density, limited deformation and deformation, etc., and achieve the effect of high accuracy and simple and clear method
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[0034] Below in conjunction with embodiment and accompanying drawing, the present invention will be further described:
[0035] Embodiments of the present invention and its implementation process are as follows:
[0036] The distributed helical parallel sensor 7 that is specifically implemented is a helical elastic cable with double-layer densely wound copper wires. The first layer of copper wires 1 is wound on the silica gel strip 3, and the first layer of copper wires 1 is wrapped with the first layer of silica gel insulator 4. The first layer of silicone insulator 4 is tightly wound with the second layer of copper wire 2, the second layer of copper wire 2 is wrapped with the second layer of silicone insulator 5, and one end of the distributed spiral parallel sensor 7 is connected to the TDR measuring instrument 6 as the starting point 8, The other end serves as the end point 9.
[0037] In this embodiment, the distributed helical parallel sensor 7 adopts a 360cm long helix...
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