中心城区既有地下空间二次拓建改造方案对比分析
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摘要
在土地资源极其匮乏的条件下,空间向地下扩建是城市进行可持续化建设的重点。由于地表建筑以及地下管道等复杂情况,中心城区既有地下空间拓建存在很多固有难题。通过案例分析,总结了几种常见的地下空间扩建改造施工方案。随后基于依托工程的实际情况,明确顶管结构转换法是可行性最高的施工方案,后续还需要深入研究。
Underground space extension is of the utmost importance in sustainable construction of cities under the condition of extremely scanty land resources. However, there are many inherent problems in the extension of the existing underground space in the central urban area because of complex ground buildings and underground pipelines. After the case analysis, this paper summarizes several common construction schemes of underground space extension and reconstruction. And based on the practical situation of the project, the highest feasible construction scheme of pipe-jacking structure transfer method is determined, and needs to further study later
Underground space extension is of the utmost importance in sustainable construction of cities under the condition of extremely scanty land resources. However, there are many inherent problems in the extension of the existing underground space in the central urban area because of complex ground buildings and underground pipelines. After the case analysis, this paper summarizes several common construction schemes of underground space extension and reconstruction. And based on the practical situation of the project, the highest feasible construction scheme of pipe-jacking structure transfer method is determined, and needs to further study later
引文
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[2] Maeda M,Kushiyama K.Use of compact shield tunneling method in urban underground construction[J]. Tunnelling and Underground Space Technology,2005,20(2):159-166.
[3]潘庆明,张明聚,王双龙,等.北京地铁4号线西单站超浅埋暗挖段上跨既有线施工变形控制[C]//中国市政工程协会.2009中国城市地下空间开发高峰论坛论文集.北京:2009中国城市地下空间开发高峰论坛,2009:99-104,108.
[4]杨德春,刘建国.对建成地铁车站结构改造设计与施工的数值模拟分析[J].现代隧道技术,2012,49(3):95-103.
[5]汤熙海.既有商业建筑增建地下空间施工过程的数值模拟研究[D].南京:南京工业大学,2014.