摘要
本文主要介绍了在广州白云(棠溪)站综合交通枢纽一体化建设工程22号线地铁站施工中,由于该车站基坑土方量大且基坑深度深,加之该区域地质条件复杂地下水位高,使得车站基坑施工难度及安全风险大大增加,同时由于周边构筑物较多,对基坑周边地质沉降和位移也有着严格要求。为确保该地铁车站能够安全顺利地完成施工,同时在施工过程中最大限度降低对周边环境的影响,为此项目部对该基坑施工中的各项工序进行严格把控,尤其对基坑支护受力状况进行认真分析计算,通过一系列举措,不但安全顺利完成该车站的施工工作,同时施工区域周边地表沉降及位移也满足相关规定,最大限度地降低了对周边的影响。该地铁车站超深基坑在复杂地质环境下施工所涉及的相关技术也为后续类似施工提供了借鉴和参考。
This article mainly introduces the construction of Line 22 subway station in the integrated construction project of Guangzhou Baiyun(Tangxi)Station's comprehensive transportation hub.Due to the large amount of earthwork and deep depth of the station's foundation pit,as well as the complex geological conditions and high groundwater level in the area,the difficulty and safety risks of the station's foundation pit construction have greatly increased.At the same time,due to the many surrounding structures,there are strict requirements for geological settlement and displacement around the foundation pit.In order to ensure the safe and smooth completion of the construction of the subway station,and to minimize the impact on the surrounding environment during the construction process,the project department strictly controls the various processes of the foundation pit construction,especially carefully analyzes and calculates the stress conditions of the foundation pit support.Through a series of measures,not only is the construction work of the station safely and smoothly completed,but also the surface settlement and displacement around the construction area meet relevant regulations,minimizing the impact on the surrounding area.The relevant technologies involved in the construction of the ultra deep foundation pit of the subway station in complex geological environments also provide reference and inspiration for similar construction in the future.
作者
周振华
ZHOU Zhen-hua(China Railway 25th Bureau Group Fifth Engineering Co.,Ltd.,Qingdao 266109,China)
出处
《价值工程》
2024年第16期146-149,共4页
Value Engineering
关键词
地铁车站
超深基坑
复杂地质
安全
subway station
ultra deep foundation pit
complex geology
secure
