Drilling shear noise reduction system and drilling shear noise reduction method

摘要

PROBLEM TO BE SOLVED: To provide an excavated shed noise reduction system capable of reducing the sound pressure level of collision noise generated when excavating shears are injected into a hopper and preventing noise pollution occurring in tunnel construction work. Do. SOLUTION: A digging / shearing noise reduction system 10A is formed of a crusher hopper 11, a vibration feeder, a crusher, a laser distance sensor 14, a traveling device for a vehicle, and a belt conveyor. In the digging shear input noise reduction system 10A, if the separation distance from the reference position measured by the laser distance sensor 14 to the digging shear is shorter than the preset operation setting distance L2, the digging shear is crushed by the crusher and the laser distance When the separation distance from the reference position measured by the sensor to the digging slide is longer than the operation setting distance L2, the crushing of the digging shear by the crusher is stopped. [Selected figure] Figure 3