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According to continuous blasting vibration monitoring results carried out on three monitoring points (bottom, middle, and top) at different vertical positions at the same horizontal distance from an underwater blasting project in a channel adjacent to high-rise buildings, the three-dimensional spatial patterns of blast vibration velocity, vibration frequency, and vibration energy were analyzed, and the elevation effect mechanism of blasting vibrations on high-rise buildings was explored. The analysis results show that: (1) Blasting vibration velocity is influenced by the combined action of the elliptical motion of Rayleigh wave, energy attenuation, and whiplash effect. It presents a significant three-dimensional spatial effect in the propagation among high-rise buildings, in which the vertical direction is dominated by Rayleigh wave elliptical motion and whiplash effect, showing a significant elevation amplification effect, while the horizontal and tangential directions are dominated by Rayleigh wave elliptical motion and energy attenuation, exhibiting an elevation attenuation effect. (2) The propagation of blasting vibration frequency in high-rise building is mainly affected by the vertical distance from the wall, showing an elevation attenuation effect in all three directions. (3) The distribution of vertical blasting vibration energy presents a significant elevation amplification effect from the bottom, middle to the top of the building. Specifically, the high-frequency energy proportion shows an elevation attenuation effect in the middle and top relative to the bottom, while the low-frequency energy proportion exhibits an elevation amplification effect in the middle and top relative to the bottom.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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