CAJ | 학술논문

地铁盾构管片对外围土体的扰动高度敏感，因此选择合理的桩基施工技术十分必要。本文考虑紧邻浅埋地铁隧道施工的高风险性，提出了全套管“静压+旋转+切割”桩基成孔技术，较好地解决了桩基施工对地铁盾构的动态扰动问题。监测表明，地铁隧道各类变形中沉降变形影响最大，收敛变形次之，水平位移最小，但是变形值均小于安全限值。
지철순구관편대외위토체적우동고도민감，인차선택합리적장기시공기술십분필요。본문고필긴린천매지철수도시공적고풍험성，제출료전투관“정압+선전+절할”장기성공기술，교호지해결료장기시공대지철순구적동태우동문제。감측표명，지철수도각류변형중침강변형영향최대，수렴변형차지，수평위이최소，단시변형치균소우안전한치。
M etro shield segments are highly sensitive to peripheral soil disturbance. T herefore,appropriate pile foundation construction technique should be necessarily adopted. Given the high risk of tunnel construction adjacent to shallow buried metro,a casing tube pile foundation hole formation technique of“static press+ rotation +cutting”was proposed,which can solve the dynamic disturbance of metro shield caused by pile foundation construction. T he monitoring results showed that settlement deformation has the greatest influence on metro tunnels,convergence deformation takes second place and displacement has the smallest effect in all kinds of deformations,the deformation values of which are less than the safety limit.