A Photoelectric Coupled Sensing Intelligent Support Bolt System

Abstract

The invention belongs to the technical field of anchoring measurement, and provides an intelligent photoelectric coupling sensing support anchor rod system. The support anchor rod system includes an upper supporting plate, an elastic component and a lower supporting plate in sequence from top to bottom, and two ends of the elastic component are separately fixedly connected with the upper supporting plate and the lower supporting plate; the support anchor rod system further comprises a plurality of pressing column pairs, and the multiple pressing column pairs are separately disposed at corresponding positions of the upper supporting plate and the lower supporting plate; and photoelectric coupling sensors are further disposed between the pressing column pairs, and warning devices are furtherconnected to the photoelectric coupling sensors. The photoelectric coupling sensors convert the force into optical signals and electric signals and transmit the signals to the warning devices to realize the early warning of the anchor rod stress. The intelligent photoelectric coupling sensing support anchor rod system realizes the photoelectric coupling and output monitoring simultaneously, a plurality of modules can be simultaneously embedded to realize the real-time monitoring and multi-signal output of different stresses in stratum, and the intelligent photoelectric coupling sensing support anchor rod system is safe and reliable and low in cost, and can achieve integrated operation of anchor bolt support, early warning and internal stress monitoring.

Description

technical field [0001] The invention belongs to the technical field of anchorage measurement, and more specifically relates to a photoelectric coupling sensor intelligent support bolt system. Background technique [0002] Anchor is a rod whose tensile strength is stronger than that of the rock and soil layer. One end of it is bonded to the inside of the rock and soil layer to form frictional resistance, and the other end is exposed to apply tension to the rod body through the installation of washers, trays and nuts. The tension at the place is transmitted to the area of ​​the anchor, and its function is to apply prestress to the anchor. As an important tool for strengthening the surrounding rock of the roadway, the anchor bolt is of great significance to measure its working stability. Therefore, many anchor bolt stress gauges have been developed. [0003] The commonly used anchor stress gauge in the prior art is composed of a hand pump, a jack, a sensor and a digital displa...

AI Technical Summary

Problems solved by technology

[0003] The commonly used anchor stress gauge in the prior art is composed of a hand pump, a jack, a sensor and a digital display instrument. Although this method can accurately measure the tensile force on the anchor, it has three obvious deficiencies: one is its The installation process is complicated, and the installation of the bolt stress gauge requires a special person to be responsible and operate in accordance with strict procedures, which consumes a lot of manpower and time; the second is that it is not a part of the bolt support itself. In particular, it limits the longitudinal deformation of the bolt and then restricts the surrounding rock to produce an appropriate amount of deformation. Since the surrounding rock cannot produce proper deformation, it is impossible to effectively release a certain amount of stress. Serious threat; the third is expensive, each anchor strain gauge is about ten times that of an ordinary anchor, and the supporting installation instrument is dozens of times that of the anchor, such a high price determines that it is impossible in engineering applications All anchors are installed together

At present, there is no relevant report on the application of mechanoluminescent materials in the field of support bolt stress gauges

Images