| EPB盾构机在富水砂层中的适应性分析 |
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| 引用本文： | 张旭东.EPB盾构机在富水砂层中的适应性分析[J].铁道建筑技术,2009(2). |
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| 作者姓名： | 张旭东 |
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| 作者单位： | 中铁十一局集团公司,武汉,430037 |
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| 摘 要： | 基于盾构机土压平衡基本原理,从防止水土突涌的角度,分别讨论在正常状态下和地下水大量渗入时,土仓压力和螺旋输送机底部所能承受的最大土压力的计算方法。通过比较土仓压力和螺旋输送机底部所能承受的最大土压力,来判定EPB盾构机在渗透系数较高的富水砂层中实现土压平衡模式掘进的能力。并结合工程实践给出具体算例。
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| 关 键 词： | 土压平衡 盾构 富水砂层 适应性 |
Adaptive Analysis for EPB Shield Machine in Watered Sandy Stratum |
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| Zhang Xudong.Adaptive Analysis for EPB Shield Machine in Watered Sandy Stratum[J].Railway Construction Technology,2009(2). |
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| Authors: | Zhang Xudong |
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| Institution: | Zhang Xudong(China Railway 11th Bureau Group Co.Ltd.; Wuhan 430071; China); |
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| Abstract: | Based on the earth-pressure-balanced theory of shield machine,the greatest earth-bearing capacity calculation method for soil chamber and screw conveyor is discussed separately,under the conditions of normal state and groundwater seepage.Through comparing the maximum earth pressure of the soil chamber and screw conveyor,the tunneling capability that the EPB shield machine with the earth pressure balance model passes the watered sandy stratum with a great osmotic coefficient is judged successfully,and refere... |
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| Keywords: | earth balance shield machine watered sandy stratum adaptation |
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