Soil body 3D displacement measuring device

Abstract

The invention provides a soil body 3D displacement measuring device. The device comprises at least one measuring rod, which is internally provided with one or more measuring modules; the device also comprises an inclinometer pipe buried in a soil body; each of measuring rods is suspended in the inclinometer pipe through a pin; a magnetic ring is fixedly arranged outside the inclinometer pipe; eachmeasuring module comprises a processor, a communicator, a magnetoresistive sensor and an inclination angle sensor; the processor is used for collecting displacement data and inclination angle data and transmitting the displacement data and the inclination angle data through the communicator; the measuring modules are connected in series to a data acquisition terminal through a power supply and acommunication cable; and the data acquisition terminal is used for supplying power to the measurement modules and uploading acquired data to the cloud. The soil body 3D displacement measuring device can continuously work, and deep soil body horizontal displacement measurement can be completed while real-time layered displacement measurement is achieved, so that the problems of ''slow detection, inaccurate detection and complex installation'' of existing soil body detection are solved, and automatic, real-time and continuous monitoring of internal displacement deformation of the soil body is achieved.

Description

technical field [0001] This application relates to the technical field of soil deformation information monitoring, in particular to a soil 3D displacement measurement device. Background technique [0002] The settlement and deformation of various buildings are closely related to the bearing soil. In order to ensure the safety of buildings, especially roads, bridges, subways, high-speed rails, dams, etc., the displacement of deep soil must be monitored. Horizontal displacement monitoring of deep soil such as mountain soil landslides, tailings pond deformation, dam deformation, and deep foundation pit deformation is one of the important monitoring items in the geological disaster monitoring system. At present, there are fixed inclinometers to solve this problem. [0003] Soft soil areas are mostly silt, silt clay and silt subclay, which generally have the characteristics of high water content, low water permeability and low strength, and must be treated during underground cons...

AI Technical Summary

Problems solved by technology

[0011] 1) At present, it mainly relies on the manual magnetic ring sedimentation method, which has a large workload and no automated testing method;

[0012] 2) In the multi-point displacement meter method, the anchor head moving in the measurement hole is actually not directly connected to the surrounding soil layer, and the response to the displacement change of the soil layer must be sensed through the backfill soil (mortar, mud), which has poor accuracy and real-time performance. Especially in the early stage of installation, when the backfill is unstable;

[0013] 3) The installation of the multi-point displacement meter is complicated and difficult, and the installation and maintenance cost is too high;

[0014] To sum up, for the existing measurement methods and equipment for soil delamination displacement in soft soil, it is difficult to complete the measurement of soil delamination displacement in real time, accurately and stably, and there is no application of unified automatic measurement of delamination displacement and soil deep displacement

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