| 盾构在砂层中的施工技术探讨 |
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| 引用本文： | 毕景佩,郭志涛. 盾构在砂层中的施工技术探讨[J]. 铜业工程, 2011, 0(4): 83-85,16 |
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| 作者姓名： | 毕景佩 郭志涛 |
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| 作者单位： | 1. 郑州市轨道交通有限公司,河南郑州,450046
2. 河南工业大学土木建筑学院,河南关郑州,450052 |
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| 摘 要： | 盾构隧道在砂层施工时,由于砂性土摩擦角较大,渣土流动性差,排土困难,容易发生喷涌,造成地面沉降,影响周边建筑物、管线与道路安全。本文以郑州市轨道交通1号线博学路站～体育中心站区间隧道盾构施工为例,认为砂层施工中必须合理设定土压、改良渣土、严控出土量、防止螺旋输送机喷涌、盾尾密封与注浆工作,才能确保盾构在砂层中的平稳、高效掘进。
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| 关 键 词： | 土压平衡盾构 砂土层 隧道掘进 控制技术 |
A Study on Construction Technology of Tunnel Shield in Sand Stratum |
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| BI Jing-pei,GUO Zhi-tao. A Study on Construction Technology of Tunnel Shield in Sand Stratum[J]. Copper Engineering, 2011, 0(4): 83-85,16 |
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| Authors: | BI Jing-pei GUO Zhi-tao |
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| Affiliation: | BI Jing-pei1,GUO Zhi-tao2(1.Zhengzhou Rail Transit Co.Ltd,Zhengzhou,Henan,China 450046,2.Civil Construction Institute,Henan University of Technology,China 450052) |
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| Abstract: | In shield tunnel construction,due to large friction angle of sandy soil,poor liquidity of muck and dumping difficulties,the tunnel shield passing through the sand stratum maybe result in inrushing,which bring about the land subsidence and jeopardize the nearby building,pipeline and road.In this paper,the tunnel shield construction of Zhengzhou rail transit line1 between Boxue Station and Tiyuzhongxin Station is taken as an example.It's deemed that it must set a reasonable soil pressure,improve muck,strict c... |
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| Keywords: | EPB Shield sand stratum tunnel excavating construction technology |
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