基于ABAQUS软件采用砂井处理软土地基应用研究  

Research on the Application of Sand Well Treatment to Soft Soil Foundation Based on ABAQUS Software

作　　者：吴德兴 邓中元 Wu Dexing;Deng Zhongyuan(Powerchina Zhongnan Engineering Co.,Ltd.,Changsha 410014,Hunan;Hunan Institute of Water Resources and Hydropower Research,Changsha 410000,Hunan)

机构地区：[1]中国电建集团中南勘测设计研究院有限公司,湖南长沙410014 [2]湖南省水利水电科学研究院,湖南长沙410000

出　　处：《陕西水利》2024年第10期33-36,共4页Shaanxi Water Resources

摘　　要：软土地基处理是工程建设的重中之重,排水固结法是其中较为常见的一种处理方式,结合具体的实际工程案例,基于ABAQUS有限元软件对单个砂井进行沉降固结及孔压分析,分别对原状砂井、等效砂墙法及均质地基法进行数值模拟,以验证ABAQUS数值模拟的适用性及砂井地基模型简化转换的可行性。计算结果表明,三种不同计算模型结果与理论公式计算结果几乎一致,由此验证了ABAQUS有限元计算软件对排水固结地基沉降计算成果可应用于实际工程,并进一步分析该三种模型孔隙水压力随时间变化情况,结果表明相比均质地基模型法而言,等效砂墙法计算结果更接近于实际情况,对其他类似工程具有典型借鉴意义。Soft soil foundation treatment is the top priority of engineering construction,and drainage consolidation method is a more common treatment method.Combined with specific practical engineering cases,settlement consolidation and pore pressure analysis are carried out on a single sand well based on the finite element software ABAQUS,and numerical simulation is carried out on the original sand well,equivalent sand wall method and homogeneous foundation method respectively.To verify the applicability of ABAQUS numerical simulation and the feasibility of simplified transformation of sand well foundation model.The results of the calculation show that the results of the three different calculation models are almost consistent with the results of the theoretical formula,which verifies that the calculation results of the ABAQUS finite element calculation software for the settlement of the drained consolidated foundation can be applied to practical projects.Furthermore,the analysis of the change of pore water pressure with time of the three models shows that compared with the homogeneous foundation model method,the pore water pressure of the three models can be improved.The calculation result of equivalent sand wall method is closer to the actual situation,which has a typical reference significance for other similar projects.

关 键 词：软土地基 排水固结 ABAQUS 砂井地基 

分 类 号：TU475[建筑科学—结构工程]