This paper analyzed the characteristics of foundation pit support engineering,introduced the commonly used support technology of building deep foundation pit,on this basis,based on the engineering examples,discussed the application of bored pile,anchor,soil nailing wall support construction technology in building deep foundation pit engineering,in order to play the advantages of support technology,achieved good support effect.%简要分析了基坑支护工程的特点，进而对建筑深基坑常用的支护技术进行了介绍，在此基础上，依托工程实例，对灌注桩、锚杆、土钉墙等支护施工技术在建筑深基坑工程中的应用进行了论述，以发挥各支护技术的优势，达到良好的支护效果。
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