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首页> 外文期刊>Journal of Geoscience and Environment Protection >Study on Ultimate Pullout Force of Grouting Anchors of the Anchor-Pull Retaining Wall
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Study on Ultimate Pullout Force of Grouting Anchors of the Anchor-Pull Retaining Wall

机译:锚拉式挡土墙注浆锚的极限拉拔力研究。

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Determination of the grouting anchorpullout force is a key step during the design of anchor-pull retaining wall, butit is mostly determined relied on empirical formula at present, and the rationalityand the safety cannot be effectively guaranteed. Based on the engineering caseof the gravity retaining wall of Qinglin Freeway, the model test was designed, andcombined with the results of the ABAQUS finite element numerical analysis, itwas analyzed that how the anchor axial pulling force distributes. The resultsshowed that the force of the anchor near the wall bolt was large and which far fromthe wall was small and the ultimate pullout force was proportional to thelength, diameter and shear strength. When the end tension of the anchor wassmall, the top load played a leading role on the anchor tension. Thisconclusion confirmed the calculation formula of ultimate pullout force was andprovided a theoretical basis for anchor-pull retaining wall design and calculation.
机译:注浆锚固拉力的确定是锚固挡土墙设计中的关键步骤,但目前主要依靠经验公式确定,无法有效保证其合理性和安全性。基于青林高速公路重力式挡土墙的工程实例,设计了模型试验,并结合ABAQUS有限元数值分析的结果,分析了锚杆轴向拉力的分布规律。结果表明,锚杆靠近墙螺栓的力较大,而距墙螺栓较远的力较小,极限拉力与长度,直径和抗剪强度成正比。当锚的末端张力较小时,最大载荷对锚的张力起主导作用。结论证实了极限拉拔力的计算公式,为锚固式挡土墙的设计计算提供了理论依据。

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