High-pressure pulsed water jet controllable active seismic source advanced detection device and application method

Abstract

The invention provides a high-pressure pulsed water jet controllable active seismic source advanced detection device and its use method. The detection device includes a water tank, a water supply pump, a supercharger, a servo motor, a convergent nozzle, a receiving sensor and a seismic wave data acquisition instrument, and the water supply pump is respectively Connect the water tank and the supercharger, the supercharger is connected to the convergent nozzle, the output shaft of the servo motor is connected to the block; the receiving sensor is connected to the seismic wave data acquisition instrument, the water supply pump pumps the water in the water tank into the supercharger, and the supercharger is pressurized The high-pressure water jet is formed, the servo motor drives the block to rotate, and the block is cut off to form a high-voltage pulse jet beam. The high-voltage pulse jet beam hits the working surface to generate shocking seismic waves, and receives the reflected waves from the sensor. The seismic wave data acquisition instrument collects the reflected waves in real time and transmits them to the smart terminal. , the intelligent terminal analyzes the reflected waves and judges the characteristics of bad geological bodies. The invention has the beneficial effects of scientific principle, safety and high efficiency, energy saving and environmental protection, and good application prospect.

Description

technical field [0001] The invention relates to the technical field of advanced geological detection of underground engineering, in particular to a high-pressure pulsed water jet controllable active seismic source advanced detection device and a use method. Background technique [0002] In the construction of underground projects such as tunnels and underground spaces, geological conditions have a significant impact on construction progress, technology and safety. When encountering unfavorable geological sections, geological disasters such as water and mud inrush and landslides are prone to occur, and even cause major safety accidents such as personal casualties and equipment damage. In order to prevent geological disasters and safety accidents during underground engineering construction, it is an effective way to detect the front of the working face by using advanced geological prediction technology. Ascertain the geological conditions in front of the working face in advan...

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Problems solved by technology

Non-explosive seismic sources have significant advantages over explosive seismic sources, but for the narrow space of underground construction, especially for tunnel boring machines and other spaces where complex mechanical structures already exist, there are still problems such as oversized equipment and inconvenient installation, which lead to detection efficiency. Low, affecting normal construction

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