高压旋喷桩应用于香港机场三跑工程淤泥土软基加固  

Application of high pressure jet grouting piles in the reinforcement of marine deposit soft foundation of Hong Kong Airport three runway project

作　　者：贺迎喜 黄双飞 邹智军 HE Ying-xi;HUANG Shuang-fei;ZOU Zhi-jun(The Second Engineering Company of CCCC Fourth Harbor Engineering Co.,Ltd.,Guangzhou,Guangdong 510230,China;CCCC Guangzhou Dredging Co.,Ltd.,Guangzhou,Guangdong 510290,China;CCCC Shanghai Dredging Co.,Ltd.,Shanghai 200002,China)

机构地区：[1]中交四航局第二工程有限公司,广东广州510230 [2]中交广州航道局有限公司,广东广州510290 [3]中交上海航道局有限公司,上海200002

出　　处：《中国港湾建设》2022年第2期48-52,共5页China Harbour Engineering

摘　　要：针对软弱海相淤泥土的加固,依托香港国际机场第三跑道填海工程(简称香港三跑工程),开展了高压旋喷桩现场工艺试桩试验,采用先进的意大利多功能高压旋喷钻机,施工自动化程度高,旋喷桩质量佳,工效快。文章着重探究了水泥掺量、养生龄期等因素对现场水泥土强度的影响,以及不同龄期室内水泥土的强度比例关系。为香港地区滨海软土地基推广应用高压旋喷桩工法加固提供了很好的工程借鉴和技术参考。For the reinforcement of soft marine deposit,relying on the main reclamation works of the Hong Kong Airport three runway system project(hereinafter referred to as the Hong Kong three runway project),the on-site trial process for high pressure jet grouting piles was carried out,and the advanced multi-functional high pressure jet grouting rig from Italy was adopted,which has high degree of construction automation,good quality of jet grouting pile and fast work efficiency.This paper focuses on the influence of cement dosage,curing age,etc.on the strength on-site cement soil,as well as the strength proportion of indoor cement soil at different ages.It provides a good engineering and technical reference for the popularization and application of high-pressure jet grouting pile reinforcement method in coastal soft soil foundation in Hong Kong.

关 键 词：高压旋喷桩 海相淤泥 现场试桩 水泥土强度 

分 类 号：U655.54[交通运输工程—港口、海岸及近海工程]