Roadbed interior part layer deformation real-time monitoring system and mounting method thereof

Abstract

The invention discloses a roadbed interior part layer deformation real-time monitoring system and a mounting method thereof. The roadbed interior part layer deformation real-time monitoring system comprises a sedimentation cap, a surface protective cover, a sedimentation plate, hoses, carbon fiber rods, clamping ring bases, lead wires and displacement sensors; the upper end of the sedimentation cap is provided with the surface protective cover, and the lower end is connected with the sedimentation plate; the sedimentation plate is provided with a plurality of displacement sensors; a probe of each displacement sensor extends out of the sedimentation cap; the lead wires of the displacement sensors are led out from the wing edge of the sedimentation cap; each hose sleeves outside the corresponding lead wire; the lower ends of the displacement sensors are connected with a plurality of carbon fiber rods respectively; the carbon fiber rods are arranged in parallel, and the lengths of the carbon fiber rods are sequentially increased; the bottom end of the longest carbon fiber rod is connected to an anchoring end arranged in a roadbed drill hole in a threaded manner; the clamping ring bases are arranged on the carbon fiber rods at an interval; and a corrugated pipe is arranged between two adjacent clamping ring bases to accommodate the corresponding carbon fiber rod. The roadbed interior part layer deformation real-time monitoring system provided by the invention can measure the rigidities of soils with a plurality of depths and reduce the measurement time and cost.

Description

technical field

[0001] The disclosure relates to a real-time monitoring system for layered deformation inside a subgrade and an installation method thereof. Background technique

[0002] At present, the main in-situ test method for measuring the internal displacement of the soil is to anchor a circular settlement tube to the bedrock, put a magnetic ring around the settlement tube, and bury it at each observation level. When the soil moves, the magnetic ring can move with the soil and the settling tube will not sink, and the magnetic ring will move along the axis of the settling tube. By measuring the relative slip between the magnetic ring and the settling tube, the purpose of measurement can be achieved.

[0003] This method has the following disadvantages: 1. The buried position of the settling tube cannot be compacted, and there are differences in the properties of the soil near the settling tube and the soil far away from the settling tube, resulting in measurement error...

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