Simulations of Static Compaction with Soil/Water/Air Coupled F.E. Analysis
Simulations of Static Compaction with Soil/Water/Air Coupled F.E. Analysis
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DOI：
10.1007/978-3-642-31343-1_23
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
K. Kawai;M. Shibata;T. Ohtsuki;Viradeth Phommachanh;Shingo Kanazawa;A. Iizuka
中科院分区：
文献类型：
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作者：
K. Kawai;M. Shibata;T. Ohtsuki;Viradeth Phommachanh;Shingo Kanazawa;A. Iizuka
大多数人造陆上土结构都是通过压实建造的。最佳压实可以提高强度并降低压缩性和渗透性。然而，压实机制仍有待在土力学中定义，除了在岩土工程现场应用经验方法之外别无选择。本研究假设压实为非饱和土在不排水和排水条件下的压缩，并通过土/水/空气耦合有限元分析进行压实模拟。因此，可以根据含水量和干密度的坐标绘制压实曲线的形状。此外，还对压实模拟获得的试件进行了直接剪切模拟。
Most man-made, onshore earth structures are constructed by compaction. Optimum compaction can increase strength and decrease compressibility and permeability. However, the compaction mechanism remains to be defined in soil mechanics and there is no alternative but to apply empirical methods at the geotechnical engineering site. In this study, compaction is assumed as compression of unsaturated soil under water-undrained and air-drained conditions, and the compaction simulation is conducted with soil/water /air coupled finite element analysis. Consequently, the shape of the compaction curve can be drawn on the coordinates of water content and dry density. Moreover, direct shear simulation of the specimen obtained from compaction simulation was also conducted.