喷射注浆法在深基坑止水工程中的应用

摘要

The main types and techniques of jet grouting for ground water treatment in deep excavation are discussed.Combined with a practical deep foundation pit in the coastal saturated soft soil, it is proved that the composite structures ofbored pile and dual-jet grouting can prevent the groundwater leakage effectively and ensure the safety of the deepexcavation.%论述深基坑开挖过程中地下水处理的主要类型及喷射注浆止水方法的技术要点.结合工程实例讨论了滨海饱水软土深基坑的基坑支护结构形式和喷射注浆止水综合选择方法.实践表明,钻孔灌注护坡桩加二重管桩间旋喷桩组合结构有效阻止了基坑侧壁及基坑底涌砂,确保了基坑开挖的安全.