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首页> 外文会议>International UDEC/3DEC Symposium on Numerical Modeling of Discrete Materials in Geotechnical Engineering, Civil Engineering, and Earth Sciences; 20040929-1001; Bochum(DE) >UDEC modeling of tunnel cavern excavation in Sydney
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UDEC modeling of tunnel cavern excavation in Sydney

机译：悉尼隧道洞穴开挖的UDEC建模

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This paper presents the results of UDEC modeling carried out for the Macquarie Park and Macquarie University underground stations in Sydney, Australia. UDEC models were developed to simulate the excavation sequence in station caverns within a rock mass comprising largely of massive rock in between district bedding planes and joints. The objective of the modeling is to examine the displacement around the cavern and the mechanical behavior of rock bolts that are sequentially installed during different stages of excavation. Three major geological structures were encountered and two types of rock cables were used in the modeled section. FISH codes were developed and used extensively in the modeling to assist the model set-up, to establish the empirical stress fields, to install both long and short cables, and to interpret the results. The result indicates that the observed movements in Macquarie Park station are within expected behavior assuming normally adopted, published rock mass properties and in-situ stresses for the Sydney region. It also confirms that complex bolt details and installation sequence are typically not needed for the modeled locations.
机译：本文介绍了在澳大利亚悉尼的麦格理公园和麦格理大学地下车站进行的UDEC建模结果。开发了UDEC模型，以模拟在区域层理面和节理之间主要由大量岩石组成的岩体中车站洞穴中的开挖顺序。建模的目的是检查洞周围的位移以及在开挖的不同阶段顺序安装的锚杆的机械性能。在模拟剖面中遇到了三个主要的地质构造，并使用了两种类型的岩缆。开发了FISH代码，并在建模中广泛使用了FISH代码，以帮助建立模型，建立经验应力场，安装长电缆和短电缆以及解释结果。结果表明，在麦格理公园站的观测到的运动在假定正常采用的预期行为范围内，已公布的岩体特性和悉尼地区的原地应力内。它还证实了建模位置通常不需要复杂的螺栓详细信息和安装顺序。

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