二维数学模型在基坑降排水施工中的适用性

以实际工程为例,研究了二维数值分析方法在复杂地质结构条件下基坑降排水施工中的适用性。结果表明,二维数值方法适用于井底为透水层且透水层厚度较大、井点间距较小的情况。在井底为不透水层或透水层厚度较小的情况下,所得结果与三维计算结果差异较大。所得结论可为数值分析方法在降排水工程中的应用提供参考。

Applicability of 2-D mathematical model to construction of foundation dewatering and drainage

By taking an actual project as the study case， the applicability of 2-D numerical analysis method to the construction of foundation dewatering and drainage under condition of a complicated geological structure is studied. The result shows that the 2-D numerical analysis method is applicable to the condition of that the bottom of the drainage well is a permeable layer with larger thickness and the spaces in-between of the wells are less. Under the condition of that the well bottom is impermeable or the thickness of the permeable layer is less， the result obtained in this study is more different from that from the 3-D calculation concerned. Generally， this conclusion can provide a reference for the application of the numerical analysis method to the relevant foundation dewatering and drainage project.