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Method for Treating the Bottom Isolation Layer of Slurry-Wall Bored Cast-in-Place Piles

2016-07-06 902 0人评论

　　泥浆护壁成孔灌注桩孔底隔层是指孔底残留石渣过厚，孔脚涌进泥砂或者塌壁泥土落底。导致孔底隔层的主要原因是清孔不彻底，清孔后泥浆浓度减小或者浇筑混凝土、安放钢筋骨架时碰撞孔壁造成塌孔落土。主要防治方法是：做好清孔工作，注意泥浆浓度与孔内水位变化，施工时注意保护孔壁。

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Method for Treating the Bottom Isolation Layer of Slurry-Wall Bored Cast-in-Place Piles

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Method for Treating the Bottom Isolation Layer of Slurry-Wall Bored Cast-in-Place Piles

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TZ's 400-Tonne Hydraulic Excavator Makes Debut, Powered by Yuchai 20-Cylinder Heavy-Duty Diesel Engine

Hitachi Construction Machinery EX3600-6 Surpasses 100,000 Cumulative Operating Hours

Trial Operation of Final Unit at Jinyun Pumped-Storage Power Station Begins

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