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Investigating the Practical Conditions to Utilize Brick Stair Wall Method as a Supporting Structure in Urban Excavation

机译:调查利用砖楼梯壁法作为城市挖掘支持结构的实用条件

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One of the functional and economical methods used to support and mitigate the deformations in urban excavations is Brick Stair Wall method. Like any other techniques, this method needs to be proved to be effective and rational. In this study, utilizing the finite difference method program, FLAC, efforts have been made to distinguish environmental conditions in which, this method of support is applicable. In addition, the effect of buildings adjacent to excavation on the surrounding ground is considered using equivalent elastic beam method (EEB). It was found that using this method in some specific conditions is extremely reasonable, especially in urban areas. In terms of excavation depth, this method of supporting performs more effectively in excavations deeper than two meters. The results also showed that the deformations derived from numerical modeling were captured well by well-known empirical formulas to predict settlements next to an excavation.
机译:用于支持和减轻城市挖掘变形的功能和经济方法之一是砖楼梯墙法。与任何其他技术一样,这种方法需要被证明是有效和理性的。在这项研究中,利用有限差分方法计划,FLAC,努力区分环境条件,这种支持方法适用。另外,使用等效的弹性束法(EEB)考虑邻近挖掘的建筑物邻近的挖掘效果。结果发现,在某些特定条件下使用这种方法是非常合理的,特别是在城市地区。就挖掘深度而言,这种支撑方法在挖掘中更有效地进行,挖掘比两米更深。结果还表明,通过众所周知的经验公式捕获了从数值建模衍生的变形,以预测挖掘旁边的沉降。

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