深基坑的开挖支护是基础和高层地下室施工中的一个综合性技术难题,由于挖土对基坑的卸荷、护坡桩向坑内倾斜变形和基坑内外人工降水等原因,必然引起基坑四周地面与原有建筑物的沉降变形,从而引发基坑安全问题。城市的基坑工程对基坑工程施工提出了严峻的挑战。本文介绍了多种深基坑的方法,供大家借鉴和参考。 Excavation and support of deep foundation pit is a comprehensive technical problem in foundation and high-rise basement construction. Due to the unloading of foundation pit, slope deformation of pit slope inside pit and artificial precipitation inside and outside foundation pit, etc., The ground around the pit and the settlement of the original building deformation, resulting in security pit excavation. The foundation pit project in the city poses a severe challenge to the construction of the foundation pit. This article describes a variety of deep foundation pit method for your reference and reference.