Method and device for quickly identifying unfavorable geology of tunnel construction based on longitudinal waves
The invention discloses a rapid identification method and device for unfavorable geology of tunnel construction based on longitudinal waves, and the method comprises the steps: obtaining original seismic longitudinal wave data of a target region, and carrying out the preprocessing of the original se...
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| creator | ZHOU CHAO ZHEN DAYONG FU KAILONG MA WENDE ZHANG GUANGZE KIM JUN-JUN SOLAO ZHAO SIWEI FENG TAO CHANG XINGWANG LIU KANG YIN XIAOKANG TANG YUHAO SEO JEONG-SEON WANG SHIXING ZHANG SHUO WEI DONGHUA |
| description | The invention discloses a rapid identification method and device for unfavorable geology of tunnel construction based on longitudinal waves, and the method comprises the steps: obtaining original seismic longitudinal wave data of a target region, and carrying out the preprocessing of the original seismic longitudinal wave data, and obtaining first seismic longitudinal wave data; using shear wave transformation to decompose and reconstruct the first seismic longitudinal wave data to form second seismic longitudinal wave data; obtaining time-frequency spectrum data of the second seismic longitudinal wave data by using a maximum entropy-based WVD method, and calculating an amplitude logarithmic gradient of each time sampling point in the second seismic longitudinal wave data based on the time-frequency spectrum data; and drawing a profile gradient map based on the amplitude logarithmic gradient, and determining an unfavorable geological area in the target area based on the profile gradient map. According to the |
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According to the</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | DETECTING MASSES OR OBJECTS GEOPHYSICS GRAVITATIONAL MEASUREMENTS MEASURING PHYSICS TESTING |
| title | Method and device for quickly identifying unfavorable geology of tunnel construction based on longitudinal waves |
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