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In order to improve the safety efficiency of heavy construction machinery installation and lifting operation and improve the visibility of installation and lifting operation personnel，a multi-agent visual accessibility BIM simulation method based on the visual cone method was proposed. The multi-agent visual task of the heavy construction machinery was obtained through the decomposition of the visual task of heavy construction machinery. Taking the installation and dismantling operation of the wk-35 electric shovel as the research object，the multi-agent visual task of hoisting driver，signal operator and cable operator was analyzed，and the multi-agent visual BIM simulation scene of installation，dismantling and hoisting operation was constructed by using Computer Aided Three-dimensional Interactive Application (CATIA) human factor simulation module. The visual cone method was used to calculate the multi-agent visual accessibility value in the process of installation and lifting. The process parameters of the BIM model were adjusted，the trend of multi-agent vision was deduced，and the multi-agent visual accessibility of installation，disassembly and hoisting was evaluated. The simulation results show that the visual accessibility of the lifting driver is poor in the process of lifting and descending，but good in the process of translation. The position of the signal operator and cable man is closely related to their visual accessibility. The visual accessibility of the signal operator is best when the visual field of view just covers the lifting driver and cable man. The cable man needs to constantly adjust his position to achieve the best visual accessibility.
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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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