摘要
由于设计或施工缺陷、地下结构变形开裂、抗浮不足等原因引起的地下工程涌水涌砂,是当前城市地下工程最常见的病害之一。涌水涌砂不仅危害地下工程本身结构安全,还极容易诱发地面沉降、塌陷等灾害问题,给人民群众生命和财产安全带来了极大威胁。以临江城市南充市某地下工程为例,利用地下水动力学原理和水力学理论分析了临江城市地下工程涌水涌砂的致灾机理,根据土体渗透变形理论和固液两相流理论探讨了涌水涌砂的形成机制,揭示引起涌水涌砂的本质原因,为从本质上提出科学治理方案奠定坚实的基础。
The water and sand inrush in underground engineering caused by reasons such as design or construction defects,deformation and cracking of underground structures,and insufficient anti-floating capacity is one of the most common diseases in current urban underground engineering.Water and sand inrush not only endangers the structural safety of the underground engineering itself,but also is extremely likely to induce disaster problems such as ground settlement and collapse,posing a great threat to the lives and property of the people.Taking a certain underground project in Nanchong,a riverside city,as an example,this article analyzes the disaster-causing mechanism of water and sand inrush in underground projects in riverside cities by using the principles of groundwater dynamics and the theories of hydraulics.Based on the theory of soil seepage deformation and the theory of solid-liquid two-phase flow,it explores the formation mechanism of water and sand inrush,reveals the essential causes of water and sand inrush,and lays a solid foundation for proposing scientific treatment solutions from the essence.
作者
曾勇霖
ZENG Yonglin(China Railway 23rd Bureau Group 4th Engineering Co.Ltd.,Chengdu Sichuan 610091,China)
出处
《铁道建筑技术》
2025年第5期147-152,共6页
Railway Construction Technology
基金
中铁二十三局集团第四工程有限公司科技研究开发计划项目(2017-01)。
关键词
临江城市
地下工程
涌水涌砂
致灾要素
致灾机理
riverside city
underground engineering
water and sand inrush
disaster-causing elements
disaster-causing mechanism
作者简介
曾勇霖(1980-),男,四川内江人,高级工程师,主要研究方向为土木工程,E-mail:7156755@qq.com。
