Soft soil roadbed settlement high-precision monitoring method and device

Abstract

The invention provides a soft soil roadbed settlement high-precision monitoring method. Settlement in a roadbed is monitored in a camera shooting mode, a novel roadbed settlement monitoring device is designed, a body of the device is composed of a settlement plate, a hollow pipe, an inner-layer PVC pipe and an outer-layer PVC pipe, wherein the settlement plate and the inner-layer PVC pipe are connected through the hollow pipe, a range allowing sliding is reserved between the inner-layer PVC pipe and the outer-layer PVC pipe, the distance from the settlement plate to the outer-layer PVC pipe is the measuring range of the device and can be selected according to the height of a measured roadbed, a placing frame is arranged in the inner-layer PVC pipe, two penetrating holes are formed in the bottom of the inner-layer PVC pipe, and a stay wire passes through the penetrating hole, bypasses the placing frame, passes through the other penetrating hole and is connected with a counter weight. The stay wire is straightened, then the camera of the inner-layer PVC pipe is used for monitoring, data are transmitted through the cable, and the shooting interval is set to achieve the purpose of real-time monitoring.

Description

technical field [0001] The invention relates to a high-precision monitoring method and device for soft soil roadbed settlement, belonging to the technical field of roadbed settlement monitoring. Background technique [0002] Deformation monitoring is an indispensable technical measure in engineering construction, and it is also an important basis for technical decision-making in road design, construction and operation. During construction or at the end stage, due to the load and self-weight, the subgrade is likely to undergo uniform or uneven settlement. , thus leading to road diseases such as pavement cracking. Therefore, from the perspective of road safety and construction, it is very necessary to monitor and control the settlement of the roadbed. [0003] The methods of subgrade settlement monitoring mainly include: [0004] Settlement slabs and monitoring piles, that is, burying surface settlement slabs and measuring the elevation change of the measuring rod with a leve...

AI Technical Summary

Problems solved by technology

The layered sedimentation method is also the most commonly used method at present. It has the advantages of high precision and wide application range. However, the electromagnetic scale will have a certain impact on the precision, and the results obtained may not be accurate.

[0009] To sum up, it can be seen that the currently commonly used soft foundation settlement monitoring method is not ideal. Therefore, a new monitoring method and device must be developed to overcome the high test cost, heavy workload, poor accuracy and impact on construction of the existing settlement monitoring method. and other shortcomings

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