摘要
地铁车站一般埋深较小,易受外界环境变化影响。分析地下水位变化、周边新建建筑物等对车站结构内力和桩基荷载的影响,结果表明:随地下水位升高,车站中板和底板的内力明显增大,桩顶荷载由压力转为拉力,桩基逐渐起抗浮作用;在车站一侧新建建筑物比两侧均新建建筑物对结构内力的影响更大。
Subway stations are usually shallowly-embedded structures, which are susceptible to variation of environmental condition. The effect of change of groundwater level and emergence of new building on the internal forces of a subway structure and its pile foundation was analyzed. The results show that the forces of the middle and base floors increase as the groundwater level rises and the forces at the pile heads vary from pushing forces to dragging forces. The effect of new building emerging on one side of the station is significant than that of new buildings emerging on both sides.
出处
《建筑技术》
2013年第9期774-777,共4页
Architecture Technology
关键词
地铁
地下水
桩基
subway
groundwater
pile foundation
