大型深基坑护坡技术研究——郑州裕达国贸大厦深基坑支护技术实践

大型深基坑支护牵涉面广，具体施工条件复杂，是一个综合性的岩土工程难题，目前还没有一套完整的理论依据及完善的施工规程。悬臂桩护坡是目前较常用的一种支护结构形式，郑州裕达国贸大厦的深基坑支护受用人工挖孔灌注桩作悬臂护坡桩，在护坡技术方面作了有益的探索，积累了一些经验教训，以代参考。

RESEARCH OF IMMENSE DEEP FOUNDATION PIT SLOPE PROTECTION TECHNIQUE deep foundation pit slope protection technique practice of Zhengzhou YuDa international trade building

Immense deep foundation pit bracing covers a wide range. It is a comprehensive problem in rock engineering due to the complexity of construction condition. There is no a complete unity of theoretical basis and perfect construction standard. Cantilever pile slope protection is a often used kind of bracing type. Deep pit bracing of slope protection use manmade cast pile as cantilever pile. Some new techniques have been adopted in slope protection and some experience is also accumulated as a reference.