吴泾电厂八期冷却塔回水沟施工过程中 ,发生了基坑支护墙倾幅过大的事故。发生事故的主要原因是没有严格按图纸施工 ,基坑顶面卸荷不到位 ,施工监测不力。采取补救措施后 ,施工得以顺利进行 ,保证了冷却塔回水沟的按期通水。 During the construction of the backwater ditch of the cooling tower of the 8th phase of Wujing Power Plant, an accident with an excessive inclination of the retaining wall of the foundation pit occurred. The main cause of the accident was that the construction was not strictly carried out according to the drawings, and the unloading on the top surface of the foundation pit was not in place. The construction monitoring was ineffective. After remedial measures were taken, the construction proceeded smoothly, ensuring the regular water flow in the backwater ditch of the cooling tower.