| 软土地基排水板堆载联合预压数值模拟研究 |
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| 引用本文： | 郭勇,顾长存. 软土地基排水板堆载联合预压数值模拟研究[J]. 粉煤灰综合利用, 2020, 0(2): 53-56,91 |
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| 作者姓名： | 郭勇 顾长存 |
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| 作者单位： | 河海大学岩土力学与堤坝工程教育部重点实验室;河海大学岩土工程研究所 |
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| 基金项目： | 国家自然科学基金项目(51679071)。 |
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| 摘 要： | 采用有限差分法对排水板堆载联合预压固结过程进行了数值模拟,结合青岛某软基处理工程实例建立相关数值模型,利用平均固结度等效原则,将排水板单元转换为平面应变的砂墙地基进行计算,为真实模拟实际排水板堆载联合预压工程情况,考虑了排水板通水量变化对地基固结沉降的影响,在数值分析中引入变井阻模型,并将计算结果与现场实测值进行对比分析,验证了本模型计算的正确性,为相关的工程提供借鉴经验。
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| 关 键 词： | 软基处理 排水板 联合预压 数值模拟 |
Study on Numerical Simulation of Combined Preloading of Drainage Plate on Soft Soil Foundation |
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| GUO Yong,GU Changcun. Study on Numerical Simulation of Combined Preloading of Drainage Plate on Soft Soil Foundation[J]. Fly Ash Comprehensive Utilization, 2020, 0(2): 53-56,91 |
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| Authors: | GUO Yong GU Changcun |
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| Affiliation: | (Key of Ministry of Education for Geomechanics and Embankment Engineering,Hohai University,Nanjing 210024,China;Research Institute of Geotechnical Engineering,Hohai University,Nanjing 210024,China) |
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| Abstract: | The finite difference method is used to simulate the consolidation process of drainage plate combined with surcharge preloading.Based on a soft foundation treatment project in Qingdao a relevant numerical model was established.By using the principle of average consolidation degree equivalence the three-dimensional drainage plate unit is converted into a plane strain sand wall foundation for calculation which is the actual drainage plate stack of real model.In the case of combined preloading project considering the influence of water discharge on consolidation settlement of foundation variable well resistance model was introduced into numerical analysis and the correctness of the model calculation was verified by comparing the field measured results with the traditional numerical simulation which can provide reference for related projects. |
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| Keywords: | Soft foundation treatment drainage plate combined preloading numerical simulation |
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