Study on the stratified system in urban underground space development

被引：0
作者：
Xin Y. [1 ]
Li X. [1 ]
Dai J. [1 ]
Wang R. [2 ]
机构：
[1] School of Earth Sciences and Engineering, Nanjing University, Nanjing
[2] Nanjing Center, China Geological Survey, Nanjing
来源：
Earth Science Frontiers | 2019年 / 26卷 / 03期
关键词：
City planning; Stratification of underground space; Underground development; Underground space;
D O I：
10.13745/j.esf.sf.2019.5.17
中图分类号：
学科分类号：
摘要：
In order to unify the standards of the underground stratification system, this paper collected the related data of underground stratification requirements for major domestic and international cities, and analyzed the main natural and social factors for the urban underground space development. The main natural factors are terrain, geomorphology and engineering geology distribution, which determine difficulties and costs of underground space development. The main social factors are city scales, location conditions, and local policies and regulations, which determine demands for underground space. The results show that regional demands and difficulties in development determine the development scales, which in turn affect the underground stratification. In most cities, the underground space is divided into shallow, sub-shallow and deep layers that are separated at 15 m and 30 m depths, respectively. The shallow underground space is greatly influenced by topography and geomorphology and should be stratified in the sub-shallow region. The underground space should be layered along the normal of the ground surface in the steep slope area. Based on them, this paper established a hierarchical evaluation index system for underground space, which provided a certain guidance and reference significance for urban underground space planning. © 2019, Editorial Office of Earth Science Frontiers. All right reserved.
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页码：104 / 112
页数：8
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