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首页> 外文会议>International Conference on Soil Mechanics and Geotechnical Engineering(16 ICSMGE) vol.3; 2005; Osaka(JP) >Influence of existing building load on the deformation and earth pressure of ground due to tunneling
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Influence of existing building load on the deformation and earth pressure of ground due to tunneling

机译：现有建筑物荷载对隧道施工引起的地面变形和土压力的影响

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摘要

To investigate the influence of existing building load on the deformation and earth pressure of the ground in shallow tunneling, two-dimensional trap-door model tests and the corresponding numerical analyses are carried out. A stack of aluminum rods is used in the model tests. Shallow and pile foundations supporting an initial dead load are modeled in the laboratory tests and numerical analyses. For the sake of comparison the laboratory tests and numerical simulations for tunneling in the initially undisturbed ground condition (i.e., green field) are performed as well. In the finite element analyses, a recently developed elastoplastic constitutive model, named subloading tij model, is used. The observed and computed results for the ground with existing building load are compared with those for the green field condition.
机译：为了研究现有建筑荷载对浅埋隧道中地面变形和土压力的影响，进行了二维活门模型试验和相应的数值分析。在模型测试中使用一堆铝棒。在实验室测试和数值分析中对支撑初始恒载的浅层和桩基进行了建模。为了进行比较，还进行了在最初未受干扰的地面条件（即绿地）中进行隧道试验的实验室测试和数值模拟。在有限元分析中，使用了最近开发的弹塑性本构模型，称为子载荷tij模型。将现有建筑物荷载下地面的观测和计算结果与绿地条件下的观测和计算结果进行比较。

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