摘要
为模拟基坑开挖过程，在室内用多套直剪仪进行卸荷后立即剪切试验，目的在于探求开挖面以下粘性土体强度变化的规律性，用以确定开挖卸荷影响深度。
In order to simulate the behavior of excavation of foundation pits, unloading immediate shear test is conducted by use of direct shear apparatuses. The influence depth due to unloading may be determined on the basis of the characteristics of shear strength in clay mass below excavation planes.
出处
《大坝观测与土工测试》
2001年第5期36-38,共3页
Dam Observation and Geotechnical Tests
