铁道标准设计
鐵道標準設計
철도표준설계
RAILWAY STANDARD DESIGN
2014年
5期
90-94
,共5页
地铁%基坑支护%二元结构地层%吊脚桩%钢管桩
地鐵%基坑支護%二元結構地層%弔腳樁%鋼管樁
지철%기갱지호%이원결구지층%조각장%강관장
metro%foundation pit supporting%dual-structure strata%end-suspend pile%steel pipe pile
以紧邻国道、上软下硬二元结构地层的明挖两层两跨箱形框架结构车站青岛地铁e号线双山站基坑支护为背景，通过对当地建筑基坑的调查及场地地层的研究，采用吊脚桩+超前微型钢管桩支护体系，经过软件计算及对现场施工的反馈，支护结构受力和变形均在设计范围以内。结论：吊脚桩+超前微型钢管桩支护体系是适用于青岛当地上软下硬地层的基坑支护形式。
以緊鄰國道、上軟下硬二元結構地層的明挖兩層兩跨箱形框架結構車站青島地鐵e號線雙山站基坑支護為揹景，通過對噹地建築基坑的調查及場地地層的研究，採用弔腳樁+超前微型鋼管樁支護體繫，經過軟件計算及對現場施工的反饋，支護結構受力和變形均在設計範圍以內。結論：弔腳樁+超前微型鋼管樁支護體繫是適用于青島噹地上軟下硬地層的基坑支護形式。
이긴린국도、상연하경이원결구지층적명알량층량과상형광가결구차참청도지철e호선쌍산참기갱지호위배경，통과대당지건축기갱적조사급장지지층적연구，채용조각장+초전미형강관장지호체계，경과연건계산급대현장시공적반궤，지호결구수력화변형균재설계범위이내。결론：조각장+초전미형강관장지호체계시괄용우청도당지상연하경지층적기갱지호형식。
This paper was based on a foundation pit supporting project at Shuangshan Station of Qingdao Metro line three. The station, which is closely adjacent to a national road, is made up of an open-cut double-storey double-span box frame structure with dual-structure strata where the upper layer is soft and the lower layer is rigid. After investigation and research on the local building foundation pits and site strata, a supporting system consisting of end-suspend piles plus advance micro steel pipe piles was adopted. By software calculation and on-site information feedback, it can be seen that the structural stresses and deformations of this supporting system are all in the range of design. Then this paper come to the conclusion that the supporting system consisting of end-suspended piles plus advance micro steel pipe piles is suitable for supporting the foundation pits with upper-soft and lower-rigid strata in Qingdao area.
