The size of excavation pit has strong effect on the character of excavation pit. The sizeis more small,the three-dimensional effect is more strong,the limit to the object of study ismore strong.4.
基坑几何尺寸对基坑的性状影响显著，基坑尺寸越小，其三维空间效应越显著，限制各研究对象作用越强。
参考来源 - 高层建筑深基坑开挖三维弹性、弹塑性有限元分析·2,447,543篇论文数据，部分数据来源于NoteExpress
Effects complex excavation, excavation pit is not only necessary to ensure their own safety, but also to effectively control the pit surrounding strata.
基坑工程环境效应复杂，基坑开挖不仅要保证基坑本身的安全稳定，而且要有效的控制基坑周边地层移动以及保护周围环境。
Based on the in situ measurement, this paper discusses the key problems which effect the deformation and stability of underground excavation pit in Shanghai soft soil.
本文依据现场测量论述了影响上海软土深基坑变形和稳定的关键问题。
Because the property of soil is complexity and uncertainty; the relationship between deformation of bracing of deep excavation pit and relative factors is very complicated nonlinearity.
由于土体固有性质的复杂性和不确定性，深基坑支护变形与其影响因素之间的关系是极为复杂的非线性关系。
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