Phased array sound wave advanced prediction system and method suitable for drilling-blasting tunnels

Abstract

The invention discloses a phased array sound wave advanced prediction system and method suitable for drilling-blasting tunnels. The system includes sound wave transduction devices and a host system, and the sound wave transduction devices transmit and receive sound waves; a data temporary storage module stores sound wave reflection signal data and focused sound wave reflection signal data obtainedby three-dimensional detection; three-dimensional coordinates of the sound wave transduction devices are imported into an acquisition module, and the acquisition module calculates and controls the emission time and the excitation sequence of each sound wave transduction device according to the three-dimensional coordinates, so that delayed transmitting is achieved to form focused sound waves; a control module is used for temporarily storing the acquired data into a data temporary storage module and transmitting the data to a data processing imaging module; and the data processing imaging module applies a deep learning algorithm for automatic identification and judging of the boundary of the geological anomalous body, conducts processing, analysis and integration on the information to forma three-dimensional detection imaging result, and finally a high-resolution three-dimensional detection image in front of a tunnel face can be obtained.

Description

technical field [0001] The invention relates to the field of tunnel advance prediction, in particular to a phased array acoustic wave advance prediction system and method suitable for drilling and blasting tunnels. Background technique [0002] With the great development of construction in the west of my country, the number of highway, railway, water conservancy and other engineering projects has increased, and tunnels are indispensable in the infrastructure construction of the west. In tunnel excavation, the drilling and blasting construction method has strong adaptability to geological conditions. Among the tunnels and tunnels that have been built in our country, more than 90% of them are constructed by the drilling and blasting method. The drilling and blasting method is still an important and commonly used tunnel construction method in our country. Tunnel blasting technology is quite mature, but its development space is still very large, and its development prospects ar...

AI Technical Summary

Problems solved by technology

However, the inventor found that the current seismic method generally has shortcomings such as low resolution, serious energy attenuation, serious noise interference, inability to identify water bodies, and inability to make qualitative judgments on faults and fracture zones.

[0005] To sum up, in the field of drill-and-blast tunnel forecasting today, there is a lack of a convenient and quick forecasting system and method with high resolution and long detection distance.

Images