【2017年整理】水池施工注意事项.ppt

SH3535-2002《钢筋混凝土水池施工及验收规范》上关于坍落度允许偏差的规定 泵送一般都在100mm以上，允许偏差取±30 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 2、底板浇筑 底板浇筑时重点在底板与池壁交接的位置，即腋角。容易出现漏振和振捣不实的情况。紧密跟踪振动棒，振捣深度，振捣时间，振捣间距。底板浇筑完毕及时收面，表面沁水量较大时要清理。 底板浇筑时必须要浇筑一定高度的池壁。底板和池壁的交接位置，是受剪力最大的地方。施工缝应留置在此处往上≥300mm的位置。池壁浇筑。施工缝尽量少留置，若要留置，要采取防水措施。一般加止水钢板。注意控制止水钢板埋置深度，为其宽度的二分之一。 止水钢板与橡胶止水带交叉的位置要有一定搭接量。 止水钢板与预埋套管止水环要有一定的搭接。 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 底板池壁交接位置 水压强最小处 水压强最大处 P=ρ×g×h  P=压强. ρ=水的密度 g=重力加速度. h=水深 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 底板浇筑完毕，及时抹面。如果设计有坡度要求应在浇筑前做出标记 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 池壁水平施工缝留置办法 加止水钢板 延长水的渗透路线，改变水的渗透路径。 池壁水平施工缝 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 止水钢板， 埋置?宽度。 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 止水钢板与套管止水环应有一定量的搭接 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 止水钢板与橡胶止水带应有一定的搭接量 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 3、池壁浇筑 池壁浇筑前提工作：施工缝处理。在封闭池壁模板前进行处理，凿毛施工缝，剔除钢筋和止水钢板上的浮浆，并用水冲洗干净。 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 施工缝凿毛 剔除钢筋上的浮浆 止水钢板上的浮浆 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 冲洗干净 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 如此处理效果 有利于新旧混凝土结合，有利于混凝土对钢筋的握裹 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.