一种高压旋喷桩-钢护筒组合处理锚索干扰的中桩成孔方法
一种高压旋喷桩‑钢护筒组合处理锚索干扰的中桩成孔方法涉及地下空间施工技术领域,针对现有技术中高地下水位条件下锚索影响中桩成孔的难题,提供一种通过止水防护、机械断索与护筒隔离相结合的中桩成孔方法,解决突涌风险与锚索处理问题,保障施工安全与质量。本发明包括以下步骤:步骤 1:现场勘查与锚索定位;步骤 2:高压旋喷桩止水帷幕施工;步骤 3:大直径钻头搅断锚索;步骤 4:钢护筒下压隔离露头锚索;步骤 5:护筒内下放钢筋笼及钢管柱。
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