这是火星塔尔西斯盾状火山构造地区被风侵蚀的地貌，照片由美国宇航局的高分辨率科学成像实验相机摄于2010年7月31日。
Windblown features are visible on this shield volcano structure in Mars' Tharsis Region seen by NASA's HiRISE camera on July 31st, 2010. (NASA/JPL/University of Arizona)
以实际工程为背景，对门式刚架结构抗风柱的受力特点、设计方法、构造措施进行了分析，并提出了建议性的设计方。
Based on actual project, the paper analyses the forced features, design method and conformation of a wind column for a structure with portal frame.
同时，根据该区的地质构造、地层结构、地面建筑等有关参数资料，分析和计算了斜风井巷道的稳定性和安全性。
Moreover the stability and safety of the inclined shaft tunnels are analyzed and calculated based on the parameters of geological structures, stratigraphic configuration and ground buildings.
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