北京地铁4号线北宫门-龙背村区间施工方案设计

Construction Design of the Section Between Beigongmen Station and Longbeicun Station of Beijing Metro Line 4

北宫门站—龙背村站区间是北京地铁4号线最北端由地下站向地面站的过渡区间,该段区间周边环境复杂,限制因素多,且存在一定程度的变化因素。通过对盾构井位置选择、施工方法、周边管线及桥桩保护措施方案设计思路的分析,提出了合理可行的施工方案设计。

It is the transitional section from underground station to ground station and in complicated and restrictive ambient condition. Ratio- nal and feasible construction design was worked out through selec- tion of location for shield excavated well, and analysis of the protec-tion measures of the local pipelines and bridge piles.