【摘要】 国内在离心模型试验模拟基坑开挖时 ,一直采用在重力场下开挖 ,其模拟的应力路径与工程实际情况不相符 .而所研制的在离心场下开挖的装置 ,其模拟得出的应力路径则与现场施工时土体的应力变化相一致 .更多还原

【Abstract】 Excavation under gravity field is usually applied in simulating the excavation in the centrifugal model test in China, but it fails to simulate the real stress path and leads to unreasonable results. A new installation to simulate the excavation in the centrifugal model test is developed. It can be seen from the results of comparison and analysis that the proposed method is better than the usual one.更多还原