Physical model test is an important research means in the field of geotechnical engineering,This article used a two-dimensional physical model simulation studies for underground mining.At first,under the premise of the similarity theory,the ratio of similar materials was determined,and the appropriate profile as the research object elected according to the engineering geological condition.Piling,excavation,and deformation observations can then be conducted,and ultimately the deformation law of surrounding rock by the underground mining concluded.Finally the direction of the displacement vector of the observation point on the surrounding rock by underground mining,as well as deformation law and the scope of the impact by excavation can be derived.%物理模型试验是岩土工程领域重要的研究手段之一.应用二维物理模型对地下开采进行模拟研究.首先是在遵循相似理论的前提下,确定模型试验的参数、相似材料的配比,根据现场工程地质情况,选择合适的剖面作为研究对象,之后进行模型的堆砌、开挖、变形的观测,最终总结出地下开采时围岩上观测点的位移矢量方向,变形的规律以及开挖所造成的影响范围.
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