A quantum dot-based landslide thrust test device and its manufacturing method

Abstract

The invention discloses a landslide thrust testing device based on quantum dot and a manufacturing method thereof, the device comprises a quantum dot organic glass hollow cylinder (1) and a laser confocal microscope endoscope (2), and a confocal laser probe (4) of the laser confocal microscope endoscope (2) goes into the hollow part of the quantum dot organic glass hollow cylinder embedded in a landslide body through an optical fiber (3). The manufacturing method comprises the steps: polymethyl methacrylate is mixed with a curing agent, quantum dots which can dissolve in chloroform are added, and the mixed solution is stirred uniformly, poured in a hollow cylinder model and curdled for at least 6 hours in normal temperature. The advantages of the device and the method comprises: landslide thrust data can be directly, conveniently and quickly measured, the collected data is more precise, the device and the method can be used in engineering application, and the operation is simple; and the spatial position of a force bearing point and the stress value thereof can be acquired.

Description

technical field [0001] The invention belongs to the technical field of geotechnical engineering pressure testing, and in particular relates to a quantum dot-based landslide thrust testing device and a manufacturing method of the device. Background technique [0002] The size of the landslide thrust is one of the important basis for determining the landslide control plan. The accuracy of the thrust directly determines the scale and cost of the treatment project, and the measurement and calculation of the thrust is a long-standing difficulty in landslide prevention technology. Due to the diversity of soil media, the complexity and inhomogeneity of composition and structure, the complexity of the sliding process and the landslide itself, and the strength of the sliding zone soil varies with external factors, it is difficult to accurately estimate the actual thrust state of the landslide and its transformation. [0003] At present, the testing methods for geological disaster la...

AI Technical Summary

Problems solved by technology

There are some deficiencies in the landslide thrust test with earth pressure cell or anchor cable steel bar meter, for example: limited by engineering conditions, less test data, difficult to select test points, etc.

The optical time domain reflection detection technology adopted is a kind of pressure sensing with an elastic diaphragm and a micro-bending modulation mechanism. It also has the following shortcomings: complex optical path structure, difficult adjustment, high requirements for on-site installation of optical fibers, and complex engineering applications

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