为适应我国城市建设、外事、旅游、通讯、民用住宅等发展,并为改变城市面貌,节约城市用地,需要建造一定数量的高层建筑。基础工程在高层建筑中占有重要的地位,它的造价占建筑物总造价的15～20％,工期占总工期18～60％。 由于高层建筑基础的发展远比上部结构 In order to adapt to the development of China’s urban construction, foreign affairs, tourism, communications, and residential housing, and to change the face of the city and save urban land, it is necessary to build a certain number of high-rise buildings. The basic project occupies an important position in high-rise buildings. Its construction cost accounts for 15 to 20% of the total building cost. The construction period accounts for 18 to 60% of the total construction period. Because the development of high-rise building infrastructure is far more than the superstructure