Deep horizontal displacement automatic measuring device

Abstract

The invention discloses a deep horizontal displacement automatic measuring device. The displacement direction and distance of deep rock and soil are detected through a protective cover, a bracket, a motor, a transmission component, a reel, an inclinometry cable, an inclinometry component, a counting component and a monitoring component; a displacement signal is generated; the moving direction anddistance of the inclinometry cable are recorded; and a depth signal is generated, and inclinometry data are calculated and sent to a server. The deep horizontal displacement automatic measuring deviceprovided by the invention is simple in structure and convenient in installation, overcomes the problems of untimely manual monitoring data collection, large personal errors, inability to encrypt andobserve in bad weather, and low efficiency, simulates a manual method for inclinometer work, and overcomes the problems of insufficient distribution density of fixed inclinometers, complex installation, difficulty in replacement and high cost, and can realize online viewing of monitoring data and receiving of over-limit alarm information wherever; and besides, the automation efficiency is high anda lot of manpower and material resources are saved.

Description

technical field [0001] The invention belongs to the technical field of geotechnical engineering monitoring, and in particular relates to a deep displacement automatic measurement technology. Background technique [0002] During the excavation of the foundation pit, because the stratum behind the retaining wall generates a shear stress increment, the soil undergoes shear deformation, and the entire enclosure structure displaces toward the foundation pit. The structure is monitored for deep horizontal displacement. [0003] The displacement of deep soil can be divided into horizontal displacement and vertical displacement. The deformation of deep soil is reflected to the surface, and there is a lagging process. It takes a certain amount of time to grasp the movement of deep soil in time and take appropriate construction protection measures when necessary. Make underground engineering construction and surrounding environment safety prevent problems before they happen. [0004...

AI Technical Summary

Problems solved by technology

[0006] Conventional deep horizontal displacement monitoring of foundation pits uses portable inclinometers and fixed inclinometers: portable inclinometers are usually used manually, and monitoring personnel need to carry the inclinometer to the site to read data, which cannot get rid of manual measurement. Time-consuming, labor-intensive, inefficient, and limited by weather and time, it is impossible to achieve all-weather tracking and monitoring, continuous monitoring, and early warning. Especially in bad weather and other environments, personnel cannot go to the site to collect inclinometer monitoring data, and Often in bad weather, large deformations are prone to occur, which gradually cannot meet the monitoring needs of modern information construction; the fixed inclinometer fixes several inclinometer probes in series to different depths in the inclinometer tube according to the measured depth. Wireless control technology is used to collect and transmit data. Although this method can realize automatic monitoring, multiple inclinometer sensors need to be installed in series for each inclinometer hole, which is costly and complicated to install. When a single one is damaged, it is difficult to replace. Due to the length of the fixed inclinometer, the distribution of measuring points cannot meet the distribution requirements of 0.5m / 1m in the specification, and it cannot be widely used

[0007] In order to solve the problems of time-consuming and labor-intensive portable inclinometers, human error, inability to make intensive observations in bad weather, and insufficient distribution density of measuring points of fixed inclinometers, complicated installation, difficult replacement and high cost, it is necessary to use the existing deep horizontal displacement monitoring technology. On this basis, develop a set of measurement devices that can realize automatic collection, transmission, convenient installation and low cost

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