以北京地铁4号线白石桥至学院南路区间渡线隧道作为工程背景，阐述在复杂环境下浅埋大跨隧道施工的地层沉降控制方法。
Taking the crossover tunnel in the Baishiqiao-Xueyuannanlu metro section tunnel of Beijing metro No4 as the engineering background , the control method for ground subsidence is introduced .
学院南路