摘要
长距离隧洞常用于穿越复杂地形,利用钻爆和TBM开挖方法联合开挖高原长隧可以充分发挥钻爆法的灵活性和TBM法的高效性,但是增加了工程进度管理的复杂度。考虑高原长隧常面临开挖工期长、地层复杂,气压低、气温低等不利条件,在钻爆法和TBM开挖进度仿真模型研究的基础上,研究开挖工艺切换的工期及其影响,建立钻爆和TBM联合开挖的高原长隧开挖进度仿真模型,并以工期函数和控制流程的形式表达。实例分析结果表明,本模型可以适用长隧施工的支洞和主洞多工作面同时开挖、以及钻爆和TBM联合开挖等复杂施工边界条件。可为高原区引水、公路、铁路等长距离隧洞的开挖进度管理提供支持。
Long distance tunnels are commonly used to cross complex terrains.The combination of the Drilling and Blasting method(DB),and the Tunnel Boring Machines(TBM)method for excavation in long tunnels on the plateau can fully leverage the flexibility of the DB method and the efficiency of the TBM method,but it also increases difficulty in schedule management.This paper considers the challenges of long tunnel construction on the plateau,such as long excavation durations,complex geological condition,low air pressure,and low temperature.Based on the studies on excavation simulation models of the DB method and TBM method,the paper examines the duration and impact of switching between the DB and TBM excavation method.It then establishes a simulation model for the excavation progress of long tunnels on the plateau using a combination of the DB method and TBM method,expressing it in the form of a duration function and control flow.Case studies demonstrate that this model can be applied to the situation of simultaneous multiple working-faces in both construction adit and main tunnel,and it can accommodate complex construction boundary conditions of the DB and TBM excavation.The research can provide support for excavation progress management in long-distance tunnels for water diversion,highways,railroads,and other projects in plateau regions.
作者
张涛
梁志强
王飞
刘全
杨凯
ZHANG Tao;LIANG Zhi-qiang;WANG Fei;LIU Quan;YANG Kai(School of Water Resources and Hydropower Engineering,Wuhan University,Wuhan 430072,Hubei Province,China;Sinohydro Bureau 14 Corporation Limited,Kunming 650041,Yunnan Province,China;Chengdu Engineering Corporation Limited,Chengdu 610072,Sichuan Province,China)
出处
《中国农村水利水电》
北大核心
2025年第1期209-214,共6页
China Rural Water and Hydropower
关键词
长距离隧洞
钻爆开挖
TBM掘进
开挖仿真
工期评价
long tunnel
drilling and blasting excavation
TBM excavation
excavation simulation
duration evaluation
