特殊地质条件下盾构机脱困技术研究  

Shield's Jamming Release Technology Under Special Geological Conditions

作　　者：贾璐[1,2,3] 温法庆[4] 刘圣勇[4] 皮膺海 

机构地区：[1]华中科技大学土木工程与力学学院,湖北武汉430074 [2]南京栖霞建设股份有限公司,江苏南京210037 [3]南昌大学建筑工程学院,江西南昌330031 [4]中铁十八局集团有限公司,天津300222

出　　处：《施工技术》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)

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.

关 键 词：隧道工程 盾构 地层加固 脱困 辅助措施 

分 类 号：U455.43[建筑科学—桥梁与隧道工程]