摘要
云南地处横断山区,受印度洋与欧亚板块挤压作用,地质条件差,围岩破碎富水,隧道施工时常发生突泥涌水工程问题。阿比村隧道为南涧至景东高速公路的控制性工程,隧道施工过程中左洞ZK30+569~594段加宽带出现突泥涌水。通过现场测斜孔监测及数值计算和综合分析,揭示隧道上方山体位移成因及发展规律;进一步采用地质钻孔确定坍塌体的规模,重新设计初期支护、二次衬砌厚度和配筋等参数;依据位移数据与地质钻孔成果,提出隧道突泥涌水段的综合处治措施。现场实施及后续监测表明:隧道加宽带突泥涌水处治效果良好,可为类似工程提供参考和借鉴经验。
Yunnan is located in the Hengduan Mountains.Squeezed by the Indian Ocean plate and the Eurasian plate,the geology is extremely poor,the rock is fragmented and the groundwater is rich,and disasters such as mud inrush and water gushing often occur.The Abicun tunnel is a control project of the expressway from Nanjian to Jingdong.During the construction of the tunnel,mud and water inrush occurred in the widened zone of ZK30+569~594 section of the left tunnel.The causes and development rules of mountain displacement above the tunnel were revealed by field monitoring of inclination holes,numerical calculation and comprehensive analysis.Furthermore,the scale of the collapsed body was determined by geological drilling,and the parameters such as initial support,secondary lining thickness and reinforcement were redesigned.According to the displacement data and geological drilling results,the comprehensive treatment measures for the mud and water inrush section of the tunnel are put forward.Field implementation and follow-up monitoring show that the treatment effect of mud and water inrush in the widening zone of the tunnel is good,which can provide reference and experience for similar projects.
作者
陈俊武
李国锋
王明江
杨峰
王安民
仝跃
CHEN Junwu;LI Guofeng;WANG Mingjiang;YANG Feng;WANG Anmin;TONG Yue(Beijing Jiaotong University,Beijing 100044;Broadvision Engineering Consultants Company Limited,Kunming 650011;Yunnan Communications Investment&Construction Group Company Limited,Kunming 650011;Xinjiang Beixin Road and Bridge Group Company Limited,Urumqi 830002;Central South University,Changsha 410075)
出处
《现代隧道技术》
CSCD
北大核心
2022年第S01期858-865,共8页
Modern Tunnelling Technology
基金
云交科教便([2019]36号)
云交科教便([2020]50号)
云南科技人才与平台计划(2017HC025号)
云南交投科技创新计划项目(YCIC-YF-2022-08)
关键词
隧道
软岩
突泥涌水
山体位移
处治措施
Tunnel
Weak rock
Mud-and water gushing
Massif slide
Treatment measures
作者简介
陈俊武(1990-),男,博士研究生,工程师,主要从事隧道与地下工程设计工作,E-mail:1084303810@qq.com.
