Ground foundation settlement monitoring system

Abstract

The invention discloses a ground foundation settlement monitoring system, which comprises a settlement monitoring PVC (polyvinyl chloride) pipe, a plurality of settlement magnetic rings, a fixing magnetic ring, a single-core cable, a measuring probe, a pulley block and an automatic data collecting system, wherein the settlement monitoring PVC pipe is vertically arranged in a ground foundation, the settlement magnetic rings sleeve the settlement monitoring PCV pipe, the fixing magnetic ring fixedly sleeves a pipe opening of the PVC pipe, the measuring probe and a movable pulley of the pulley block are freely moved up and down in the settlement monitoring PVC pipe, and the measuring probe is connected with a fixed pulley of the pulley block at the pipe opening and the automatic data collecting system through the single-core cable. The ground foundation settlement monitoring system has the advantages that the measuring accuracy is doubled, the data collection is more accurate, reliable and convenient, the data obtaining is easy, and the requirement of settlement monitoring of high-accuracy buildings is met.

Description

technical field [0001] The invention relates to foundation monitoring technology, in particular to a monitoring device for foundation settlement. Background technique [0002] With the rapid development of railway passenger dedicated lines and expressways, the settlement of the foundation has attracted further attention, especially the deformation requirements of the soft soil foundation section are extremely stringent. Conduct long-term settlement observation and data collection. [0003] figure 1 It shows the magnetic ring type layered settlement measurement device used in the existing foundation settlement monitoring, including a monitoring PVC pipe 1, a settlement magnetic ring 3, a measuring probe 2 with a built-in magnetic field strength sensor, and a tester 12 connected by a cable 4. A plurality of subsidence magnetic rings 3 are placed on the outer jacket of the monitoring PVC pipe 1. The sensor in the measuring probe 2 detects the magnetic ring magnetic field sign...

AI Technical Summary

Problems solved by technology

[0004] The existing magnetic ring-type layered settlement measurement device has the following problems: 1. When the measuring probe is close to the magnetic ring, the tester makes a sound, and the data collection is carried out after the tester hears the sound, and there is a delay in manual operation and individual differences. 2. Determine the position of the magnetic ring through the scale on the cable, and the minimum accuracy of the cable scale is 1mm, so the minimum monitoring accuracy of the foundation settlement can only reach 1mm

Therefore, the test system error of the existing magnetic ring type layered settlement measurement device is relatively large, and it is difficult to meet the settlement monitoring requirements of high-speed railways and other high-precision structures

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