管幕法是继盾构之后而发展起来的一种地下管道施工方法,具有支护强度高、施工精度高、施工速度快、安全可靠等特点,在实际中的应用成效显著.本文结合北京新建地铁19号线管幕法施工为例,介绍管幕法施工工艺特点,包括顶进工艺、精度控制、地表沉降控制等方面,为地铁施工的方案选择提供新思路.%The pipe curtain method is an underground pipe construction method developed after the shield, which has the characteristics of high support strength, high construction precision, fast construction speed, and is safe and reliable, so its practical application effect is remarkable. Combined with the construction of subway line 19 in Beijing as an example, this paper introduces the characteristics of pipe curtain construction technology, including jacking process, precision control and surface subsidence control, which provides a new idea for subway construction scheme selection.
展开▼
