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文章以北京地铁十号线一期工程亮马河站南端主体结构为例,重点研究地下三层三跨中跨盖挖顺作法设计与施工技术,同时针对该工法施工期间存在钢管混凝土柱、中跨盖板上方土体及新改移热力管线的稳定性不好保证的难点和重点,提出了控制钢管混凝土柱柱顶侧移和减小钢管混凝土柱长细比以增加其整体稳定性的解决措施。
Taking the main structure of the southern end of Liangmahe Hydropower Station of Beijing Metro Line 10 Phase I as an example, this paper focuses on the design and construction technology of underground three-span and three-span mid-span cover dredging and dredging. In the meantime, The solution to the difficulties and focuses of ensuring the stability of the soil above the cover plate and the heat transfer pipeline is proposed. It is proposed to control the top-side displacement of the concrete-filled steel tubular column and reduce the slenderness ratio of the concrete filled steel tubular column to increase its overall stability Measures.