一、基础施工意、法两国的高层建筑一般都有三至六层地下室,基础埋深均在10米以下。地下深层施工多采用先做基坑护壁,再明开的方法,基坑护壁有用钢板桩的,但更多的是做地下混凝土连续墙。如法国电力公司大楼,采用了一种新的“预制混凝土地下连续墙——巴诺索尔法”,在施工时做挡土和防水护壁,以后即作为地下室的外围结构。这种预制连续墙,比一般现浇连续墙质量好,防渗透性较高,表面平 First, the basic construction of Italian and French high-rise buildings generally have three to six basements, the foundation buried depth of 10 meters. Underground deep construction mostly uses the method of first making the foundation pit, and then open the way, the foundation pit wall useful steel sheet pile, but more is to do underground concrete continuous wall. For example, the building of the French Electric Power Company adopted a new “Precast Concrete Underground Diaphragm Wall - Banosol Law”, which is used for retaining and waterproofing the walls during construction. Later, it is used as the peripheral structure of the basement. This kind of prefabricated continuous wall is of better quality than ordinary cast-in-situ continuous walls, high permeability, and flat surface