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随着我国经济的快速发展及城市化进程的加快,土地需求增长和城市有限可用地之间的矛盾越来越明显。我国正面临着“城市综合症”[1]:人口超饱和、建筑空间拥挤、绿地面积减少;交通堵塞;基础设施落后于城市的扩展和城市人口的增加;环境恶化等。实践表明,开发利用地下空间是扩大城市容量,提高土地利用效率,缓解“城市综合症”的重要举措之一。以北京市为例,北京市地下空间每年增加的建筑面积大约为300万m~2,占
With the rapid economic development in our country and the acceleration of urbanization, the contradiction between the growth of land demand and the limited available land in cities becomes more and more obvious. China is facing “urban syndrome” [1]: population over-saturation, congested building space, reduced green space; traffic jams; infrastructure lags behind urban expansion and urban population growth; environmental degradation and so on. Practice shows that the development and utilization of underground space is one of the important measures to expand urban capacity, improve land use efficiency and alleviate “urban syndrome.” Taking Beijing as an example, the incremental floor area of Beijing’s underground space is about 3 million m 2 per year