软土地层盾构区段空洞处理技术研究
摘要:随着粤港澳大湾区的逐步发展，粤港澳地区扩建工程呈现出规模大、地层复杂等特点，尤其是在临海软土区的工程，往往会伴随着复杂的工程地质问题。以深圳机场T4航站楼地基处理工程为背景，针对拟建T4航站楼场地周边地铁工程盾构后出现的空洞危害，采用适宜的地质雷达探测了空洞的大致形状及方位，结合场地条件分析其形成原因主要为施工工艺、衬砌混凝土材料、盾构设备及场地地应力影响。采用袖阀管注浆处理了空洞危害，并现场检验了空洞处理效果，发现该方法可有效地处理临海深厚软土层的空洞危害，为粤港澳大湾区乃至全国类似地区的空洞处理提供借鉴。
Abstract:With the gradual development of the Great Bay area of Guangdong, Hong Kong and Macao, the expansion project of Guangdong, Hong Kong and Macao has the characteristics of large scale and complex stratum. Especially in the soft soil area near the sea, there are always complicated engineering geological problems. Taking the foundation treatment project of Terminal 4 of Shenzhen Airport as the background, aiming at the damage of the cavity after shield tunneling around the site of the proposed Terminal 4, the general shape and orientation of the cavity are detected by the appropriate ground penetrating radar, and the formation causes are analyzed combining with the site conditions, which are mainly related to the construction technology, lining concrete materials, shield equipment and the influence of site ground stress. Sleeve valve pipe grouting was used to deal with the cavity damage, and the effect of cavity treatment was tested on site, so as to provide a reference for the cavity treatment in Guangdong, Hong Kong, Macao and other similar areas in China.
中文标题：
软土地层盾构区段空洞处理技术研究
Cavity Treatment Technology of Tunnel in Shield Section of Soft Soil
作者：
罗明亮1,杨松波2,吴文栋2,徐红日2,黄华2
Luo Mingliang1,Yang Songbo2,Wu Wendong2,Xu Hongri2,Huang Hua2
作者简介:罗明亮,男,1978年生,汉族,广东四会人,大学本科,学士,高级工程师,研究方向为岩土工程大型填海软基处理技术。E-mail:11415134@qq.com
通讯地址：
1. 深圳市土地投资开发中心,广东深圳 518034; 2. 上海宝冶集团有限公司,上海 200941
1.ShenzhenLandInvestmentandDevelopmentCenter,Shenzhen518034,Guangdong,China; 2.ShanghaiBaoyeGroupCo.,Ltd.,Shanghai200941,China
中图分类号:TU449
doi:10.3969/j.issn.1007-2993.2021.02.009
出版物：岩土工程技术
收稿日期:2020-02-17
网络出版日期:2021-11-12
关键词:盾构上方空洞,空洞探测,空洞成因,空洞处理技术
Key words:cavity above shield,cavity detection,cavity causes,cavity treatment technology
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