Cutting excavation blasting in expressway construction is characterized by a wide range of excavation height, small excavation section and high quality requirements.
高速公路路堑爆破开挖工程具有开挖高度变化大、开挖断面小、开挖轮廓要求严、特别是边坡质量要求高等特点。
When the coefficient of soil pressure at-rest varies in proper range, the influence on the horizontal displacement of the excavation can reach 20%.
适当范围内对静止土压力系数进行的不同取值,对挡墙的水平位移的影响可达20%左右。
The small range model, in which mesh is refined, is exactly used to simulate excavation process of the underground powerhouse.
然后取较小计算范围进行二次细分网格,以便较准确地模拟地下厂房分步开挖的动态过程。
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