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在青海省半湿润地区,地处高海拔且常年遭受几种主风向作用下的土遗址,风力掏蚀成为其破坏的最重要因素之一。主要根据多年的气候数据及已观测的掏蚀量,并结合室内风洞试验与流体动力学(CFD)中常用的软件Fluent进行模拟分析,主要揭示风力掏蚀病害形成和发展过程中的影响因素,进一步结合工程地质学和力学理论进行分析研究,提出风蚀量与风速、风蚀时间之间的定量关系。为防治和监测此类病害的发生和发展,预报一次风蚀事件的风蚀量,及其对土遗址稳定造成的影响提供有益的参考。
In the semi-humid area of Qinghai Province, at a high altitude and under several major winds and long-term exposure to the earth’s ruins, wind erosion is one of the most important factors in its destruction. Mainly based on years of climatological data and observed amount of undercutting, combined with the commonly used software Fluent in the wind tunnel test and fluid dynamics (CFD) simulation analysis, the main revelation of the formation and development of wind tunneling disease affecting factors , Further combining engineering geology and mechanics theory analysis and research, put forward the quantitative relationship between wind erosion and wind speed, wind erosion time. In order to prevent and monitor the occurrence and development of such diseases, it is helpful to predict the amount of wind erosion caused by wind erosion events and their impact on the stability of the sites.