摘要
超深基坑工程中在降水区域外一定距离设置防渗帷幕,在支护结构与帷幕之间降水,不仅可以减少支护结构水土压力,还能够避免对环境的不利影响。防渗帷幕外测的高水头产生的水压力是否会影响支护结构?水压力究竟如何传递到支护结构?作者首先分析了现场实测资料得出若干规律,指出经典土压力理论的局限性,然后用土力学基本理论进行机理分析,最后提出水压力传递模式,得出若干有益结论。
Using anti-seepage curtain outside the deep foundation and dewatering between Super-deep foundation and curtain, not only diminish the soil pressure , but also help construction environment. Whether or not the water pressure outside the curtainaffect the foundation？ How is the water pressture transmited to the support？ Based on the data, some short-comings of certain basic theory are analyzed, and certain load transmitting way is put forward, which is proved by the basic theory.
出处
《地下空间与工程学报》
CSCD
2006年第3期398-401,共4页
Chinese Journal of Underground Space and Engineering
基金
国家自然科学基金资助项目(10102015)
软土地区超深基坑的水土压力研究
关键词
深基坑
土压力
传递机理
Super-deep foundation
soil pressure
transfer mechanism
