某一深大基坑工程的设计与实践

Design and Practice on a Deep and Great Foundation Excavation

介绍了某城市中心地带一深大建筑基坑工程的设计方案与工程实践。本支护方案采用桩撑(锚)与土钉墙联合支护结构,地下水的控制上采用坑内深井降水与坑外回灌相结合的方案,从而达到了安全可靠、经济合理的目的,同时又最大限度地减少了其对周边环境的影响。本文对类似工程有一定的借鉴作用。

The designing scheme and engineering pratice on a deep and great foundation excavation in the civic center are introduced in this paper, in the foundation pit engineer , the pile-inside support（outside anchor） and soil nailing wall unite retaining structure are used. on the control of under-ground water , outside water-return combined with deep wells inside the pit are adopted. All the scheme are credibility and economic , in the meantime , the influence on periphery environment are reduced to maximum lim- it. And it have a certainty engineering value.