摘要:
[目的] 山地风场地形复杂,大件运输设备重量大、尺寸长,运输道路经济性要求较高,导致道路设计选线非常困难。 [方法] 以实际工程为背景,从风电场投资成本构成、风电设备特点和运输车辆性能等方面,分析了山区风场运输道路选线的基本原则,研究了道路平曲线转弯半径和纵坡坡度的最大值及极限值。 [结果] 风场道路选线设计需综合考虑道路线形技术指标的要求及环境条件的限制,选线以纵面线型为主,线型指标一般采用低限值。 [结论] 在采用专用运输车辆的条件下,风场运输道路推荐采用的平曲线最小半径为30.0 m,极限最小半径为20.0 m;纵坡最大坡度为0.14,极限坡度为0.17,相关成果可供风机道路设计及建设参考。
Abstract:
[Introduction] Topography in mountainous area is complex, the large-scale equipments for transportation are heavy and long, better economy is demanded for the construction of the transportation road, which leads to difficulty in road route design. [Method] Based on a practical engineering, considering the cost proportion of the project investment, the feature of the wind farm equipments and the performance of the transport vehicles, analyzed the basic principles of the road route selection, researched the common and limited minimum horizontal curve radius and the maximum longitudinal grade of the road. [Result] The technical indicator demand of the road route and the constraint of the environment shall be considered in the road design, the grade of longitudinal profile is mainly dominated and the limited index is commonly used. [Conclusion] In use of the special vehicles for the transportation, the common minimum horizontal curve radius of the road is 30.0 m, the limited minimum horizontal curve radius is 20.0 m; and the common maximum slope is 0.14, the limited maximum slope is 0.17, the results can be reference for wind farm transportation road design and construction.
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