电缆隧道穿越珠江重要风险分析及对策研究  

Analysis of Important Risks and Countermeasures of Cable Tunnel Crossing the Pearl River

作　　者：李嘉业 杨振中 LI Jiaye;YANG Zhenzhong(Guangzhou Electric Power Engineering Design Co.,Ltd.Guangzhou 510031,China)

机构地区：[1]广州市电力工程设计院有限公司,广州510031

出　　处：《广东土木与建筑》2022年第8期33-36,共4页Guangdong Architecture Civil Engineering

摘　　要：为规避电缆隧道穿越珠江的实施风险,采用工程类比法,借鉴地铁经验,提出规避优先、预案先行,以调整盾构姿态、加强外部监控配合等手段应对地质风险,以设置保压泵碴系统、加强密封性等方式应对水文风险,以控制盾构机参数、及时注浆等方式应对地表环境风险。进一步结合BIM技术与数值分析,提出风险处理对策的完善优化思路。并在大坦沙岛过江电缆隧道项目中进行验证,处理后风险在可控范围,证明以上风险对策有效。该研究为大坦沙岛过江电缆隧道项目提供了技术指导,为电缆隧道穿越珠江的后续研究提供了参考,为风险对策研究提供了新的优化方法和思路。In order to avoid the implementation risk of the cable tunnel crossing the Pearl River,the engineering analogy method is adopted,and the subway experience is used for reference,and the priority of avoidance and the plan is proposed to deal with the geological risk by adjusting the posture of the shield and strengthening the external monitoring and cooperation,and to set up the pressure-maintaining pump ballast system,Strengthen the sealing and other means to deal with hydrological risks,and deal with surface environmental risks by controlling the parameters of shield machines and timely grouting.Further combined with BIM technology and numerical analysis,the improvement and optimization ideas of risk treatment countermeasures are put forward.This research provides technical guidance for the cable tunnel project across the river in Datansha Island,provides a reference for the follow-up research on the cable tunnel crossing the Pearl River,and provides new optimization methods and ideas for the study of risk countermeasures.

关 键 词：穿越珠江 风险源 BIM 数值分析 

分 类 号：U455.1[建筑科学—桥梁与隧道工程]