Laser probe quartz content rapid analysis device, TBM and method

Abstract

The invention provides a laser probe quartz content rapid analysis device, TBM and method, the laser probe quartz content rapid analysis device comprises a laser emitting and receiving device and a laser enhancement device, the laser emitting and receiving device comprises a laser emitter, an optical assembly for controlling laser irradiation area and energy, a light collector, a spectrum detection device, a micro time schedule controller and a processor; the laser enhancement device comprises an air blowing mechanism, a power supply control generator and telescopic positive and negative electrodes. After the blowing mechanism removes floating dust around the to-be-measured object, the laser transmitter irradiates the rock mass to form plasma, and then the power supply is started to control the generator to generate a high-voltage electric field to secondarily excite the plasma, so that the effect of enhancing the spectral intensity is achieved; the working time sequence of each mechanism is controlled by a micro time sequence controller according to detection logic; the processor is used for analyzing the spectral information to obtain the quartz content of the rock; according to the method, the quartz content of the rock can be rapidly measured, the TBM tunneling efficiency is guaranteed, and the construction cost is effectively controlled.

Description

technical field [0001] The invention belongs to the technical field of tunnel boring machine construction, and in particular relates to a laser probe quartz content rapid analysis device, TBM and method. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] TBM (Full Face Tunnel Boring Machine) is a high-end heavy-duty excavation equipment integrating excavation, slag removal, transportation and support. TBM has been widely used for its safety and efficiency. One of the most important equipment. As my country's tunnel and underground engineering construction gradually shifts to the west, the complex stratum conditions with large buried depths have brought major challenges to the safe construction of tunnels. However, in actual engineering, TBM has poor adaptability to complex geology. If the construction encounters high-strength and highly abr...

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Problems solved by technology

[0005] (1) The mounted rock quartz content measuring device is mainly used to detect the rock quartz content of the side wall of the tunnel. The fixed position is not flexible, and there is a certain distance from the tunnel face, so it cannot characterize the rock characteristics of the tunnel face;

[0006] (2) The existing detection techniques such as plasma emission spectroscopy, X-ray fluorescence spectroscopy, atomic absorption spectroscopy, and X-ray photoelectron spectroscopy are relatively complex and require sample preparation, which are not suitable for use in the complex environment of TBM tunnels, and the analysis speed is relatively slow. Slow, poor real-time performance;

[0007] (3) Collect a certain number of rock samples to obtain hardness, wear resistance index and quartz content, and conduct nonlinear analysis on the data to establish a quartz content prediction model. The method depends on the quality of the original data of the data set, and it is difficult to cover many influencing factors.

However, the environment in the TBM construction tunnel is poor, with a lot of dust and high humidity. Therefore, if you want to use this detection method to analyze the content of elements and quartz, you need a laser probe device with high integration and small size, and you must also solve the environmental impact on the detection. Interference, and form a supporting data processing method

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