岩溶地区风电机组塔架地基处理——以白马雪山风电场工程为例

Foundation treatment for wind turbine tower in karst area:case of wind farm on Baima Snow Mountain

随着我国风电建设的发展,岩溶地区风电场建设项目日益增多,岩溶地基处理问题引起了工程设计人员的关注。风电机组塔架基础对地基承载力要求不高,但对地基变形、沉降和稳定性方面要求较为严格。针对上述特点,以云南白马雪山风电场建设为例,提出应因地制宜采取处理措施,如调整塔架位置、挖除回填、灌浆加固、镶补、加强岩溶水截排水处理等,从而保证后期风电场的运行安全。

With the development of wind power development in China, the numbers of wind farms built in karst area are increasing, so the foundation treatment for wind turbine tower in karst area becomes a challenge for the engineers. The foundation of wind turbine tower has relative low requirements on its bearing capacity, but requiring high standards for the deformation, settlement and stability of the base. Aiming at the characteristics and combing with the practice of a wind farm construction on Baima Snow Mountain in Yunnan Province, we propose some foundation treatment measures in view of the local conditions, including adjustment of tower location, excavation and backfilling for karst caverns, reinforcement by grouting, karst water drainage, to ensure the operation safety of wind turbines.