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中文摘要：
为了研究条形基础地基的剪切破坏形式和承载机制，在相似理论的指导下，设计并完成了一组模型试验，模拟粉质黏土地基受荷后产生变形，扩展直到破坏的全过程：测量并分析地基中不同点处的土压力大小和分布规律，观测了剪切带的形成和发展过程。结果表明，模型试验能够很好地体现地基的受力变形特征、地基中各点的真实应力状态及变化规律，在研究深基坑变形过程、破坏形态方面具有理论研究意义。
英文摘要：
In order to study the failure mode and the load bearing mechanism of the strip foundation, one model test based on the similarity theory has been designed to simulate the clayey subsoil. On the one hand, the soil pressure of the subsoil and the diversity have been measured, and the distribution rule has been analyzed together. On the other hand, the shear belt formation and the developing process have been observed. The results show that the model test is an important means to understand the mechanical characteristics, such as the subsoil deformation to destruction, the subsidence distortion characteristics, the true stress distribution and variation law, which has theoretical significance in studying the subsidence distortion characteristics as well as the destruction shape and mechanism of the deep excavation.
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3-D multi-step travel time tomography: Imaging the local, deep velocity structure of Rabaul volcano,
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