施工技术 2016年11月下 22 CONSTRUCTION TECHNOLOGY 第45卷第22期 D01:10.7672/gjs2016220022 大坡度斜井盾构施工壁后填充技术研究* 杨俊哲，邱承有2 (1.神华神东煤炭集团有限责任公司，陕西榆林719315；2.中铁十一局集团有限公司，湖北武汉430061) [摘要]大坡度斜井盾构施工过程中，由于受坡度的影响，管片壁后填充材料流向开挖掌子面，导致浆液流失，严重 时导致管片壁后填充质量差等问题.从浆液特性分析、室内模型试验与现场实施方案等方面着手，分析了管片壁 后填充层对管片结构防水性能的影响，研究了高水压状态下管片壁后填充层与管片结构共同防水的作用机理.根 据斜井连续下坡、大埋深、超长的工程特点，结合神华神东补连塔煤矿斜井工程地质情况，开展了管片壁后填充施 工工艺及分段注浆封堵形式的系统研究，形成了煤矿斜井盾构管片壁后填充综合技术. [关键词]盾构：大坡度；斜井：壁后填充；施工 [中图分类号]TD265 [文献标识码]A [文章编号]1002-8498(2016)22-0022-03 Technical Study on Filling the Shield Tunneling Construction After Steep Inclined Shaft Yang Junzhe' Qiu Chengyou2 (1.Shenhua Shendong Coal Refco Group Lad.Yulin Shaanxi 719315 China; 2.China Raileay No.11 Construction Bureau Group Co.Ltd.Wuhan Hubei 430061 China) Abstract:Steep inclined shaft shield construction process due to the influence of the slope the segment wall filling material to the excavating face may lead to loss of slurry segment filled with issues such as the poor quality.In this paper the slurry characteristics of indoor model tests and field implementation and other aspects analyzes the influence on the wall segment after filling layer waterproof performance of the segment structure studied under high pressure condition after filling wall segment mechanism of waterproof layer and segment structure.According to the engineering characteristics of deep buried long continuous downhill slope with Shenhua Bulianta coal mine slope engineering geological conditions the system of filling construc...
大坡度斜井盾构施工壁后填充技术研究.pdf
