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超大直径越江隧道泥水盾构掘进模型试验研究 被引量:3

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摘要 使用超大直径泥水盾构在砂土地层高水压条件下修建越江隧道,施工技术难点多、风险大,类似工程实例不多,施工经验难以借鉴,相关研究较少。介绍利用400 mm盾构模型机,针对南京长江隧道高水压、超大直径、地质复杂和局部超浅埋等工程条件,进行泥水平衡盾构施工室内模型试验,重点研究分析盾构掘进时的地表沉降与掘进参数之间的关系,得出地表沉降和土仓压力的波动变化等规律,研究成果对实际施工有直接的指导意义。
作者 郭信君
出处 《铁道标准设计》 2008年第10期71-75,共5页 Railway Standard Design
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