Water loss settlement simulation of thick unconsolidated confined aquifer layer

作者：Xu, Liangji; Zhu, Nan; Ma, Rongzhen; Liu, Xiaopeng

来源：Journal of Mining & Safety Engineering, 2015, 32(5): 821-826.

DOI：10.13545/j.cnki.jmse.2015.05.019

• Compression deformation
• Confined aquifers
• Consolidation settlement
• Experimental equipments
• Ground movement
• Simulation tests
• Surface movement and deformations
• Unconsolidated layers

To reveal the mechanism of surface movement and deformation caused by water loss in thick unconsolidated confined aquifer during coal mining, based on specially designed experimental equipment, the water loss settlement experiment of unconsolidated confined aquifer was carried out, and the effect mechanism of confined water loss in unconsolidated layer to surface subsidence was analyzed. The results show that consolidation settlement of soil can be appeared due to water loss no matter with pressure or not, which is also the reason for consolidation and compression deformation of aquifer. Under the same conditions, the deformation of soil with fine particle size is larger than that of soil with coarse particle size.

• 出版日期2015
• 单位安徽大学