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土压平衡盾构以其经济性和良好的地层适应性被广泛应用于各种地铁施工项目。但利用土压平衡盾构穿越城市小型河流及桥梁时存在较大的技术难度,施工质量难以保证。本文就北京地铁10号线石榴庄站-大红门站区间穿越凉水河及凉水河桥工程为例,介绍土压平衡盾构过河过桥施工技术,为类似盾构施工质量保证措施提供经验。
Earth pressure balance shield is widely used in various subway construction projects due to its economy and good formation adaptability. However, there is a big technical difficulty in using the earth pressure balance shield to cross the urban small rivers and bridges, and the construction quality is difficult to guarantee. This paper introduces the construction technology of crossing the bridge with earth pressure balance shield across the Liangshui River and Liangshuihe Bridge in the interval of Beijing Pomegranate Station - Dahongmen Station on Line 10 of Metro Line No.10 to provide experiences for similar quality assurance measures of shield construction.