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首页> 美国卫生研究院文献>Heliyon >Three-dimensional response of double anchored sheet pile walls subjected to excavation and construction sequence
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Three-dimensional response of double anchored sheet pile walls subjected to excavation and construction sequence

机译：开挖和施工顺序对双锚板桩墙的三维响应

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摘要

In this study, a three-dimensional (3D) response of anchored sheet pile walls was investigated on double-anchored sheet pile system during soils excavation and tunnel construction sequence. This construction procedure is executed in areas front and adjacent the sheet pile walls. This paper focused on both areas of construction effects on the sheet piles. This numerical study aimed at the evaluation of the variation of bottom wall bending moment, top wall lateral and vertical displacements and anchor reactions forces exerted in the sheet piles. This paper also described the variation of the total anchor's reactions forces from the upper and lower anchors rows. A parametric effect such as upper and lower anchors rows distance was also performed to evaluate the variation of the wall bending moment, displacement and anchors total forces. The analysis results indicated that the reactions forces developed in the lower anchor rods are always higher than those developed in the upper anchor rods. The higher the distance between the upper and the bottom anchors the lower the displacement of the top wall in any stage of the construction. The minimum bottom walls bending moment is developed in the case where the distance between the anchor's rows divided by the wall height is 0.51. Positioning the upper anchors at 0.15 and the lower at 0.39 the wall height from the top wall will induce minimum top wall vertical displacement during soil excavation. This paper presents the results and findings of the parametric study performed.
机译：在这项研究中，研究了在土工开挖和隧道施工过程中，双锚板桩系统对锚固板桩墙的三维响应（3D）。该施工过程在板桩墙的前面和附近进行。本文重点讨论了对板桩的施工影响的两个方面。这项数值研究旨在评估板桩中底壁弯矩，顶壁横向和垂直位移以及锚固反作用力的变化。本文还描述了来自上下锚行的总锚反作用力的变化。还进行了诸如上，下锚的行距等参数效应，以评估壁弯矩，位移和锚总力的变化。分析结果表明，下部锚杆中产生的反作用力始终大于上部锚杆中产生的反作用力。上部和底部锚之间的距离越大，在建筑的任何阶段顶壁的位移越小。在锚的排之间的距离除以壁高为0.51的情况下，将产生最小的底壁弯矩。将上锚定在0.15处，将下锚定在0.39处，距顶壁的壁高将在开挖土壤时引起最小的顶壁垂直位移。本文介绍了进行的参数研究的结果和发现。

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