抗拔桩对持力层的渗流场影响研究

Study on Influence of Anti-uplift Pile on Seepage Field of Bearing Stratum

以某地下停车场为背景,采用Midas GTS作为分析工具,通过数值模拟软件,对抗拔桩的2种布置形式进行持力层的渗流场模拟分析,分别在静水压力、暴雨5h、暴雨10h等条件下探究抗拔桩对底部持力层的渗流场影响,分析结果显示:抗拔桩过密会导致持力层中形成止水帷幕,止水帷幕造成基坑两端的水压急剧增大,在减少抗拔桩布置后,能够减少该现象产生,从而降低工程成本。

Taking an underground parking lot as the background,using Midas GTS as the analysis tool,the seepage field of the bearing stratum in two different arrangements of uplift piles is simulated and analyzed using numerical simulation software,and to explore the influence of uplift piles on the seepage field of the bottom bearing stratum under the conditions of hydrostatic pressure,rainstorm for 5 h and rainstorm for 10 h.The analysis results show that too dense uplift piles will lead to the formation of waterproof curtain in the bearing stratum,which will cause the water pressure at both ends of the foundation pit to increase sharply.After reducing the layout of uplift piles,this phenomenon can be reduced,thus reducing the project cost.