A Phased Array Acoustic Advanced Prediction System and Method Applicable to Drill and Blast Tunnels

Abstract

The invention discloses a phased array sound wave advanced forecasting system and method suitable for drilling and blasting tunnels, including a sound wave transducer and a host system, the sound wave transducer emits and receives sound waves; a data temporary storage module stores the data obtained by three-dimensional detection Acoustic reflection signal data and focused acoustic wave reflection signal data; acquisition module, which imports the three-dimensional coordinates of the acoustic wave transducer device, which calculates and controls the emission time and excitation sequence of each acoustic wave transducer device according to the three-dimensional coordinates, so as to delay the emission Form focused sound waves; the control module temporarily stores the collected data to the data temporary storage module, and sends the data to the data processing and imaging module; the data processing and imaging module uses deep learning algorithms to automatically identify and judge the boundaries of geological anomalies, and the information Processing, analysis and integration are carried out to form 3D detection and imaging results, and finally a high-resolution 3D detection and imaging of the front of the face is 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...

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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.

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