摘要
盾构在复杂地质条件下较长时间停机后的脱困,常常受到诸多不利因素的影响,以自身能力实现脱困,可避免借助外力辅助盾构脱困带来的影响。以某盾构施工项目为研究对象,通过理论计算得出盾构脱困所需的最小总推力,分析了刀盘、前中盾以及尾盾的被困因素,提出了该项目特殊地质条件下依据盾构机自身能力脱困的技术措施,建立了脱困操作流程及脱困判定标准并成功实施,达到了安全可靠又不伤害设备的脱困目的。
This paper is based on a shield construction project. With the result of the minimum total thrust needed to get rid of shield＇ s jamming which is calculated by theory, firstly, it analyzes the trapped factor of cutter head and the front, middle and end of the shield. Secondly, the research puts forward a technical measure based on the ability to release these troubles which are applied under the special geological conditions of the project. The operating flow and judgement standard of shield＇ s jamming release is established and implemented successfully, the purpose of safety and reliability, no injury to facilities is achieved.
出处
《施工技术》
CAS
北大核心
2016年第23期62-66,共5页
Construction Technology
基金
江西省科技支撑计划项目(20151BBG70059)
关键词
隧道工程
盾构
地层加固
脱困
辅助措施
tunnels
shields
stratum consolidation
jamming release
auxiliary measures
