Angular-displacement underwater settlement gauge

Abstract

An angular-displacement underwater settlement gauge comprises a piston-type displacement transmission device; a lower casing pipe and an upper casing pipe are disposed on the piston-type displacement transmission device; an extension rod is connected with the lower part of the piston-type displacement transmission device; the lower end of the extension rod is an anchoring point; a measuring box is connected with above the piston-type displacement transmission device; a settlement amount electric measurement device and an A / D switch device are disposed in the measuring box; a steel pipe is connected with the upper end of the measuring box; a settlement broad is connected with the top end of the steel pipe; a transmission belt is disposed in the piston-type displacement transmission device; the settlement amount electric measurement device is connected with the upper end of the transmission belt; the settlement amount electric measurement device is connected with the A / D switch device; the A / D switch device is connected with a monitoring instrument through cables, wherein the monitoring instrument is disposed above far away from the settlement gauge. The settlement gauge has a simple structure, and can convert linear displacement into angular displacement to improve measurement precision and accuracy. The angular-displacement underwater settlement gauge has wide application scope, high monitoring precision and sensitivity, strong interference immunity for transmission signals, and high stability, can realize real-time visual display of the settlement values, and is simple in installation, and low in cost.

Description

technical field [0001] The invention belongs to civil engineering quality monitoring instruments, in particular to a settlement instrument for long-term monitoring of the settlement of underwater soft ground. Background technique [0002] In port construction, vibrating wire settlement meters are usually used to monitor the settlement of soft soil foundations. The application of the vibrating wire settlement instrument is still in the manual recording of the vibration frequency of the steel string and the settlement of the measured soil layer is obtained through manual post-calculation. When the vibrating wire settlement instrument is used to monitor the settlement, there are problems such as high failure rate, susceptible to electromagnetic interference when the signal is transmitted through the cable to affect the measurement results, low monitoring accuracy, poor stability, high cost, and unintuitive data collection. Contents of the invention [0003] The object of the...

AI Technical Summary

Problems solved by technology

When the vibrating wire settlement instrument is used to monitor the settlement, there are problems such as high failure rate, susceptible to electromagnetic interference when the signal is transmitted through the cable, which affects the measurement result, low monitoring accuracy, poor stability, high cost, and unintuitive data acquisition.

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