Performance assessment on influence zone of existing structures for metro construction

B. C. Roy, R. Ekambaram
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引用次数: 0

Abstract

The current mega cities such as Kolkata, Mumbai developed over centuries from even before colonial times and they now consist of old parts and new parts. Though underground construction even in the new parts is not an easy task, in the highly built-up old areas with narrow lanes, going underground while saving what exists above ground is a daunting task. Such a situation arose while taking one of the lines of Delhi Metro through the area of “Old Delhi”. Monitoring the ground features, including old building and monuments during construction became essential. Underground construction, as carried out for East-West metro Kolkata or Mumbai metro line 3, demanded extensive monitoring to assess ground movement and displacement depending upon depth and volume of works underground, soil conditions and foundations of existing buildings and utilities. The paper highlights geology, protecting existing structures, ground movement, construction method, and safety aspects in planning and construction.
地铁既有结构影响区性能评价
现在的大城市,如加尔各答、孟买,甚至在殖民时代之前就已经发展了几个世纪,现在它们由旧部分和新部分组成。即使在新地区,地下建设也不是一件容易的事情,但在建筑密集、小巷狭窄的旧地区,既要地下化,又要保留地上的东西,这是一项艰巨的任务。当乘坐德里地铁的一条线路经过“旧德里”地区时,出现了这种情况。在施工期间监测地面特征,包括老建筑和纪念碑变得至关重要。地下建设,如加尔各答地铁东西线或孟买地铁3号线,需要根据地下工程的深度和数量、土壤条件和现有建筑物和公用设施的基础,进行广泛的监测,以评估地面的移动和位移。本文重点介绍了规划和施工中的地质、保护现有结构、地面运动、施工方法和安全方面的问题。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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