随着经济的发展城市土地锐减,高层建筑物越造越高。由于高层建筑的发展对地基基础提出了新的要求。解决这个矛盾桩基础仍然是主要手段。因为采用桩基础对建筑物沉降小,沉降收敛快,沉降均匀等优点,故被广泛采用。但是,桩基础的工程造价高,一般桩基费用占工业与民用建筑总造价的约 With the economic development, the land in cities has been drastically reduced, and the high-rise buildings have been created higher and higher. As the development of high-rise buildings puts forward new requirements for foundations. Solving this contradiction is still the main method. Because pile foundations have the advantages of small settlement, rapid convergence of settlement, and uniform settlement, they are widely used. However, the construction cost of the pile foundation is high, and the general pile foundation cost accounts for the total cost of industrial and civil construction.