最近,我院人防教研室在南京市采用静压爆扩成孔土锚锚固技术加固某工程13米深基坑垂直基壁(平面面积700多平方米),稳定时间长达六月之久(图1,图2)。与常规的基坑大开挖和板桩法施工相比,具有施工简便、工期短、技术经济效果明显等优点。为城市街区狭小场地内进行深基础施工开辟了一条新的途径。 Recently, the Civil Defense Research Office of our institute used the static pressure explosion and expansion hole anchor anchoring technology to reinforce the vertical foundation of a 13-meter deep foundation pit (plane area of ​​more than 700 square meters) for a period of as long as June (Figure 1, Figure 2). Compared with conventional foundation excavation and sheet pile construction, it has the advantages of simple construction, short construction period, and obvious technical and economic effects. A new approach has been opened up for deep-rooted construction in narrow streets in urban neighborhoods.