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一、前言 近三十年来,国内外对承受水平和铅直荷载的锚板进行了大量卓有成效的试验研究。在大量原型和模型试验的基础上,提出了多种基土破坏模式和锚板承载力计算方法,揭示了锚板承载力的深度效应、尺寸效应、板形影响和渐进性破坏等问题,初步满足了工程设计的需要。但是,从现有研究成果来看,基础上拔理论繁多,众说不一,所推荐的预估承载力公式的适用性和可靠程度也比较有限,其主要原因在两方面:①多数研究均只进行锚板受力与位移量测,并局限于仅根据此成果进行锚板承载力分析,而对决定锚板承载力的根本因素——板周土体的变形过程与应力分布规律缺乏准确的系统观测与分析;②虽然已发现锚板承载力
I. INTRODUCTION In the past three decades, a large number of effective experimental studies have been conducted at home and abroad on anchor plates subjected to horizontal and vertical loads. On the basis of a large number of prototypes and model tests, a variety of foundation soil failure modes and anchor plate bearing capacity calculation methods were proposed, revealing the depth effects, size effects, plate shape effects and progressive damage of anchor plate bearing capacity. Satisfy the needs of engineering design. However, judging from the existing research results, there are many different theories on the basis of different opinions, and the applicability and reliability of the proposed formula for predicting bearing capacity are also relatively limited. The main reasons are twofold: 1 Most studies only The stress and displacement measurement of the anchor plate is performed, and limited to the analysis of the bearing capacity of the anchor plate based on this result only, but the lack of an accurate determination of the deformation process and the stress distribution law of the soil around the plate is fundamental to determine the bearing capacity of the anchor plate. System observation and analysis; 2 Although the anchor plate bearing capacity has been found