The model tests also failed to truly reflect the soil stress and strain characteristics.
而模型试验中又不能真实地反映土中应力、应变的特征。
The result indicates that when the foundation pit is excavated, the soil stress state near the foundation pit wall changes obviously;
结果表明，在基坑开挖过程中，基坑壁附近的土体应力状态变化显著；锚杆锚固段应力呈非线性递减分布；
There is few theoretical analysis and study about the soil stress variation and the soil compacted effect between piles when making holes.
对挤密桩挤密成孔过程中桩周土体的应力变化和随应力变化发生的桩间土体挤密效果的理论研究并不是很多。
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