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中文摘要：
内河大直径嵌岩灌注桩需承受横向载荷,为了研究桩和岩体在此工况下的工作特性,进行了室内大比尺模型试验。试验通过对现场原型岩体和桩的综合分析,选取模型比为1∶20,用重量配比为砂∶石膏∶水=5.6∶0.8∶1来模拟基岩,有机玻璃来模拟钢筋混凝土桩。测试不同横向载荷和岩体襟边宽度时桩及基岩的力学特性。试验得出结论对软质基岩横向承载力桩的研究和设计具有重要参考价值。
英文摘要：
To investigate large diameter rock-socketed cast-in-place piles and the behaviour of rock under lateral load, large model tests were conducted. Considering the prototype characteristics of rock and piles, the scale of model was selected as 1：20. The mixture ratio of sand： gypsum： water by weight was 5.6：0.8：1 to simulate bedrock, and the organic glass was used to simulate concrete piles. The mechanical behaviour of piles and bedrock was studied under different horizontal loads. The test results would be helpful to the large diameter rock-socketed cast-in-place piles in the soft bedrock under lateral loads.
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