随着我国城市地下轨道交通建设的大规模进行。为减少地铁建设对周边建筑物的影响,提高城市深基坑安全施工的研究正成为城市基坑施工领域的一个重要课题。以杭州某地铁站深基坑加固为例,通过对车站基底及连续墙接缝采取三重管高压旋喷桩的加固方式,使基坑完全封闭,有效制止了周边水土流失,保护了周边建筑物的安全。 With the large-scale construction of urban rail transit in our country. In order to reduce the impact of subway construction on surrounding buildings, the research on improving safety construction of urban deep foundation pit is becoming an important issue in the field of urban foundation pit construction. Taking the reinforcement of a deep foundation pit of a subway station in Hangzhou as an example, the foundation pit and the continuous wall joint are reinforced by the triple-tube high-pressure jet grouting pile to completely close the foundation pit and effectively prevent the surrounding soil and water loss and protect the surrounding buildings Security.