A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method of subway station steel pipe pile
The invention discloses a construction method of a subway station steel pipe pile. The construction method comprises the following steps of S1, pilot tunnel hardening and leveling; S2, pile position fixing and hole opening; S3, steel pipe pile coring; S4, drilling, specifically, after coring is completed, a crawler-type drilling machine is adopted for drilling, in the drilling process, the flatness of a drilling machine and the perpendicularity of an active drill rod are checked, a drill bit and a drill rod connector are checked regularly, low-speed and low-pressure drilling needs to be conducted during drilling, and the perpendicularity is controlled by arranging a drop hammer on a drill arm; S5, primary hole cleaning; S6, hole depth measuring, and hole detecting; S7, steel pipe placing; S8, grouting pipe hoisting and placing; S9, sinking-checking thickness checking; S10, concrete pouring; S11, pile splicing and pouring, and installing longitudinal bars at the top of the pile; and S12, pile bottom post-grouting. The problems that the drilling perpendicularity does not meet the design specification requirement, the sediment thickness is difficult to control and the steel pipe pile concrete is not compact enough are solved.
本发明公开了一种地铁站钢管桩的施工方法，包括以下步骤：S1、导洞硬化平整；S2、定桩位、开孔；S3、钢管桩取芯；S4、钻孔：取芯完成后再采用履带式钻机钻孔，钻孔过程中，检查钻机的平整度和主动钻杆的垂直度，定期检查钻头、钻杆接头，钻孔时应低速低压钻进，并通过在钻臂上设吊锤控制垂直度；S5、一次清孔；S6、测孔深、检孔；S7、安放钢管；S8、吊放注浆管；S9、检查沉查厚度；S10、混凝土灌注；S11、接桩浇筑、桩顶纵筋安装；S12、桩底后注浆。本专利解决了钻孔垂直度不符合设计规范要求、沉渣厚度控制难的问题以及钢管桩混凝土的不够密实的难题。
Construction method of subway station steel pipe pile
The invention discloses a construction method of a subway station steel pipe pile. The construction method comprises the following steps of S1, pilot tunnel hardening and leveling; S2, pile position fixing and hole opening; S3, steel pipe pile coring; S4, drilling, specifically, after coring is completed, a crawler-type drilling machine is adopted for drilling, in the drilling process, the flatness of a drilling machine and the perpendicularity of an active drill rod are checked, a drill bit and a drill rod connector are checked regularly, low-speed and low-pressure drilling needs to be conducted during drilling, and the perpendicularity is controlled by arranging a drop hammer on a drill arm; S5, primary hole cleaning; S6, hole depth measuring, and hole detecting; S7, steel pipe placing; S8, grouting pipe hoisting and placing; S9, sinking-checking thickness checking; S10, concrete pouring; S11, pile splicing and pouring, and installing longitudinal bars at the top of the pile; and S12, pile bottom post-grouting. The problems that the drilling perpendicularity does not meet the design specification requirement, the sediment thickness is difficult to control and the steel pipe pile concrete is not compact enough are solved.
本发明公开了一种地铁站钢管桩的施工方法，包括以下步骤：S1、导洞硬化平整；S2、定桩位、开孔；S3、钢管桩取芯；S4、钻孔：取芯完成后再采用履带式钻机钻孔，钻孔过程中，检查钻机的平整度和主动钻杆的垂直度，定期检查钻头、钻杆接头，钻孔时应低速低压钻进，并通过在钻臂上设吊锤控制垂直度；S5、一次清孔；S6、测孔深、检孔；S7、安放钢管；S8、吊放注浆管；S9、检查沉查厚度；S10、混凝土灌注；S11、接桩浇筑、桩顶纵筋安装；S12、桩底后注浆。本专利解决了钻孔垂直度不符合设计规范要求、沉渣厚度控制难的问题以及钢管桩混凝土的不够密实的难题。
Construction method of subway station steel pipe pile
一种地铁站钢管桩的施工方法
YIN XUEXIN (author) / MENG TAO (author) / GAO XIAOGANG (author) / WANG ZHONGZHAO (author) / WU SI (author) / WU MEIRONG (author) / WANG ZHENHUA (author) / CUI KAI (author) / HE XIANQUN (author) / XU GUANGYAO (author)
2021-10-08
Patent
Electronic Resource
Chinese
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