复杂地质隧道开挖方法与监测措施研究  

Excavation Methods and Monitoring Measures for Tunnels with Complex Geological Conditions

作　　者：樊占东 程培川 谢志辉 胡建东 FAN Zhandong;CHENG Peichuan;XIE Zhihui;HU Jiandong(The First Engineering Co.,Ltd.of CCC Third Highway Engineering Bureau,Beijing,100012 China)

机构地区：[1]中交三公局第一工程有限公司,北京100012

出　　处：《科技创新导报》2022年第24期138-141,共4页Science and Technology Innovation Herald

摘　　要：为确保不同围岩等级条件下隧道开挖施工的稳定性和经济性,从而提高隧道施工效率,基于巴马—凭祥公路巴马至田东段合同段隧道工程,对不同等级隧道围岩分别采取不同的开挖方法。本文详细阐述了环向开挖预留核心土法、台阶法和全断面法的施工顺序和适用条件,以及隧道施工的监测措施,能够为相似地质条件隧道开挖提供一定的参考依据。In order to ensure the stability and economy of tunnel excavation under different surrounding rock grades,so as to improve the efficiency of tunnel construction,different excavation methods are adopted for the sur-rounding rocks of different classes of tunnels based on the tunnel project of the contract section of Bama-Pingxiang Road from Bama to Tiandong.This paper describes in detail the construction sequence and applicable conditions of circumferential excavation core soil reservation method,bench method and full section method for circumferential excavation,as well as the monitoring measures for tunnel construction,which can provide some reference for tunnel excavation under similar geological conditions.

关 键 词：隧道开挖 环向开挖预留核心土法 台阶法 全断面法 监测 

分 类 号：U455.49[建筑科学—桥梁与隧道工程]