一种新型树木移栽机设计

The process of selecting and designing the major components for a hybrid solar collector/CHP system is described. Particular attention was given to the design of the solar collector and a number of options, including thin membrane heat pipe solar collectors (both ‘normal’ and ‘artery’ types) and hybrid heat pipe solar collectors (both wicked and wickless types), were considered. Performance comparisons were made using theoretical and experimental data and a hybrid solar collector was selected as the best option for the system. Micro impulse-reaction turbine using n-pentane as its working fluid was selected for the system although further work is being carried out on a compressed-gas driven turbo alternator. A prototype hybrid solar collector/CHP system has been constructed and the results of its theoretical and experimental testing are presented in Part II of this paper.

本资料为:一种新型的太阳能自动跟踪装置，共5页，内容详实，可供参考。

结合云南省某高速公路的建设，研究了一种新型锚定板挡土墙。这种锚定板挡 土墙在设计上采用桩基础代替传统的杯座基础，拉杆材料采用高强度钢绞线代替大直径钢筋；在施工上，肋柱采用现浇的施工工艺，施工过程中取消了肋柱的临时支撑。工程建设实践证明：这种挡土墙较传统锚定板挡土墙具有更能实现高大、且更好地控制施工位移、保证施工质量等优点。另外，通过有限元模拟分析锚定板周围土体塑性区的分布，得出塑性区首先出现在锚定板后侧的填土中；挡墙的整体破坏模式验证了“土墙”法的破坏模式。