Anti-slide pile-transparent soil slope system test device based on PIV and close scene photography technology and deformation measurement method

Abstract

The invention relates to an anti-slide pile-transparent soil slope system test device based on PIV and a close scene photography technology and a deformation measurement method, and belongs to the technical field of geotechnical engineering. The test device comprises an optical vibration isolation system, a model system, a loading system, a traditional measurement system, a PIV measurement systemand a close scene photogrammetry system. The model system and the loading system are arranged above the optical vibration isolation system; and the PIV measurement system is arranged on the side surface of the model system and used for measuring the internal displacement and deformation of a model, and the close scene photogrammetry system is erected on the upper part of the model system and usedfor performing three-dimensional space displacement and deformation measurement of the external slope surface of the model. According to the test device, through the measurement of displacement and deformation field of slice at any position inside and space displacement field of the external slope, the three-dimensional space deformation and displacement field of anti-slide pile-slope system are obtained; test research of all types of pile-soil systems can be realized; and the measurement effect is superior to that of a traditional displacement meter, and meanwhile, only the combination of close range non measurement camera and scale can be used to measure the displacement of the characteristic points on the slope.

Description

technical field [0001] An anti-slide pile-transparent soil slope system test device and deformation measurement method based on PIV and close-range photography technology, mainly used to study the pile-soil interaction mechanism and anti-slide mechanism in the process of pile reinforcement slope Research questions, and used to guide pile design, belong to the field of geotechnical engineering. Background technique [0002] Due to my country's vast territory and various types of geological disasters, among which landslide disasters are the most common and widely distributed in the southwestern and northwest regions of my country, landslide disasters cause a large number of casualties and property losses every year, so the research on the stability of slopes and their reinforcement Measures have always been a research focus in the geotechnical engineering community. [0003] Generally, measures to enhance slope stability are divided into two categories: protective measures and...

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Problems solved by technology

[0005] The problem to be solved by this deformation measurement system is to overcome the shortcomings of the invisible internal system of the existing model and the one-sided top displacement monitoring, and propose a test device and deformation of the anti-slide pile-transparent soil slope system based on PIV and close-range photography technology It can clearly observe the deformation field data such as the displacement and deformation of the anti-slide pile-slope system soil and pile body, displacement vector diagram and displacement contour diagram.

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