穿越海底断层破碎带钻爆法施工安全风险分析与防控  

Analysis and Prevention and Control of Safety Risk of Drilling and Blasting Construction through Submarine Fault Fracture Zone

作　　者：任文锋 蔡世康 杜领通 REN Wenfeng;CAI Shikang;DU Lingtong(China Railway No.2 Engineering Group Co.,Ltd.,Chengdu 610091,China;China Railway Qinghai—Tibet Group Co.,Ltd.,Xining 810007,China)

机构地区：[1]中铁二局集团有限公司,成都610091 [2]中国铁路青藏集团有限公司,西宁810007

出　　处：《路基工程》2024年第4期235-239,共5页Subgrade Engineering

摘　　要：以胶州湾第二海底隧道工程为背景,开展穿越海底断层破碎带隧道采用钻爆法施工的安全风险分析。针对地质勘察、超前地质预报、断层破碎带突水涌泥、爆破有害效应等施工最突出的风险因素进行系统分析,并提出综合地质探测技术,利用服务隧道进行综合超前地质预报方案,超前帷幕注浆和超前小导管技术,松动爆破、光面爆破和控制爆破等风险控制措施。Taking the second Jiaozhou Bay submarine tunnel project as the background,the safety risk analysis of tunneling through the submarine fault fracture zone by driling and blasting method is carried out.Based on the most prominent risk factors of construction such as geological investigation,advance geological prediction,water gushing and mud gushing in fault fracture zone,harmful effect of blasting,the systematic analysis is carried out,and the risk control measures such as comprehensive geological detection technology,comprehensive advance geological prediction scheme using service tunnel,advance curtain grouting and advance small pipe technology,loose blasting,smooth blasting and control blasting are put forward.

关 键 词：海底隧道 精准探测 钻爆法 断层破碎带 突涌水 爆破效应 通风 超前注浆 风险管控 

分 类 号：U455.4[建筑科学—桥梁与隧道工程]