高压旋喷桩内插H型钢技术在某基坑支护中应用

Application of High-Pressure Jet Grouting Pile With H-Section Steel in Foundation Pit Support

基于杭州萧山国际机场三期项目中关于行李通道NX-2区的复杂基坑围护工程,论证了高压旋喷桩内插H型钢技术在该基坑支护中所具有的优势。通过对高压旋喷桩内插H型钢技术在基坑支护过程中施工工艺要点及监测数据的阐述,实践表明该支护方式能较好地适应该类复杂基坑,为后续该类型特点地形施工提供了借鉴。

Based on complex foundation pit support engineering of luggage passage NX-2 area in Hangzhou Xiaoshan International Airport Phase 3 project,the advantages of high-pressure jet grouting pile inserting H-section steel technology in the foundation pit support are demonstrated.Through expounding key points of construction technology and monitoring data of high-pressure jet grouting pile inserted H-section steel in foundation pit support process,the practice shows that the support method can better adapt to complex foundation pit,which provides reference for follow-up construction of the type of characteristic terrain.