摘要
为了研究浅埋暗挖施工技术在南水北调天津干线保定市2段津保公路穿越中的应用,对"管超前、严注浆、短开挖、强支护、快封闭、勤量测"的18字方针在工程中的具体应用进行了分析和研究.针对施工过程中地面位移、局部塌方等问题,提出了改进方法,即超前小导管制作打设、强化注浆效果和快速安装钢格栅等施工工艺,为类似工程提供借鉴.
In order to study the application of shallow mining method in crossing Jinbao highway which belongs to the second part water transfer project,this paper analyzes and studies the concrete application of methods including pipe ahead,grouting closely,excavating shortly,powerful support,sealing quickly and measuring frequently.According to problems such as ground displacement and partial collapse in construction process,this paper puts forward countermeasures such as making and driving of advanced small pipes,strengthening grouting effect and installing steel grills rapidly to afford references to similar projects.
出处
《江苏建筑职业技术学院学报》
2013年第4期7-9,共3页
Journal Of Jiangsu Vocational Institute of Architectural Technology
基金
江苏建筑职业技术学院2012年校级课题(JYA312-19)
关键词
浅埋暗挖法
南水北调
公路穿越
超前小导管
强化注浆
shallow mining method
south-to-north water transfer project
high way crossing
advanced small pipe
strengthening grouting
