改革开放,城市各项事业蓬勃发展,建设用地空前紧张,尤其是好地段,几乎到了寸土寸金的程度。要想找一块交通便利、位置颇佳的建房地皮,真比登天还难。因此,解放思想、大胆探索,向空中发展,成为当前建筑界普遍关注的新课题。 北京地铁总公司有一万多名职工,日以 With the reform and opening up, urban undertakings have enjoyed vigorous growth in various undertakings and the land for construction has been unprecedentedly tight. In particular, it has reached a point where the cost of land is high. To find a convenient transportation, good location of the construction of land, really hard to ascend the ground. Therefore, emancipating the mind, boldly exploring and developing into the sky has become a new topic that has drawn widespread attention in the construction industry. Beijing Metro Corporation has more than 10,000 employees, Japan and Israel