Footing Under Static Loading: Land Subsidence | Science Publications

American Journal of Applied Sciences

Amin Chegenizadeh¹  Su Yang¹  Mochamad Arief Budihardjo¹  Hamid Nikraz¹ 

关键词: Subsidence;    Footing;    Load;    Wells;   

DOI  :  10.3844/ajassp.2015.58.63

学科分类：自然科学（综合）

来源: Science Publications

【 摘 要 】

Land and footing subsidence caused by groundwater extractionis a source of many problems for buildings and infrastructures. This study aimsat extending the knowledge of footing subsidence causing by ground waterpumping by considering various well and load conditions. The approach is to usePLAXIS simulation to investigate the influence of well conditions on thesubsidence of surface footing subjected to combined distributed load. A numberof soil models with plain strain, homogeneous and transient flow behavior werebuilt. While the groundwater extraction rate was set up at 20 m³/dayfor each well, the obvious influence of important parameters including wellnumbers, well location and load magnitude on footing subsidence and surfaceprofile were investigated. It was found that increasing the number of wellswill trigger greater footing subsidence, while the location of the wells willslightly affect the surface profile of both the aquifer and footing. In this study,the effect of distributed load above the footing to the footing itself was alsoinvestigated by doubling the distributed load applied. The simulation resultsshowed that distributed load significantly contribute to the subsidence offooting.

【 授权许可】

Unknown