某变电站主变压器地基不均匀沉降分析与处理

某500kV变电站工程在投运前发现主变压器基础与散热器基础产生不均匀沉降,导致设备受损,严重影响本地区2002年夏季的正常供电。为使500kV变电站在拟定时间内投入运行,经多方案比选,采用"地基土体卸载法"对地基基础进行加固处理,收到了安全、经济、快捷的效果,值得同类型基础设计借鉴。

Analysis and Treatment of Foundation Settlement in Main Trasforme of Station

Differential settlement which occurred between foundations of the main transformers and radiations was observed before a 500k V transformer substation was put in production It leaded to equipments damage, which can seriously influence the regular electrical supply in local area during the summer of 2002 without correct treatments. To ensure the in-time production of the 500kV substation, several methods were laid out. Subsoil Unloading Method was carried out to strengthen the bed. The method was not only safety and economical but also fast, which is worth considering in the design of the same foundation type.