A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method for super-large and super-long steel pipe column of hard rock stratum foundation pit
A construction method for a super-large and super-long steel pipe column of a hard rock stratum foundation pit comprises the following steps of machining and transporting the super-large and super-long prefabricated steel pipe column, burying a steel pipe pile casing to construct a pilot tunnel, conducting hole guiding in a grading mode, reaming in a grading mode, brushing a wall and cleaning holes, conducting HPE positioning, hoisting a reinforcement cage, hoisting the steel pipe column, conducting secondary hole cleaning and pouring concrete. According to the construction method, factory prefabrication is conducted, the whole prefabricated steel pipe column is transported, the steel pipe pile casing is buried to serve as a pilot tunnel, the inner wall achieves the wall protection effect, meanwhile, the effect of controlling the perpendicularity of a pile hole is achieved, hole guiding is conducted in a graded mode according to the drilling depth and the stratum condition, and graded reaming is conducted in combination with a reamer bit; the HPE vertical pipe inserting machine is used for being in butt joint with the steel pipe column and the tool section to guarantee the butt joint precision and the perpendicularity of the steel pipe column, the crawler crane and the full-slewing drilling machine control hoisting and lowering of the large-length steel pipe column, meanwhile, ultrasonic detection during hole cleaning and concrete pouring is combined, the hole forming efficiency and quality are effectively improved, and the construction safety is guaranteed.
一种硬岩地层基坑超大超长钢管柱施工方法，包括以下步骤：超大超长预制钢管柱加工运输、埋设钢管护筒施作导坑、分级引孔、分级扩孔、刷壁清孔、HPE定位、吊放钢筋笼、吊装钢管柱、二次清孔及灌注混凝土。本发明施工方法通过工厂预制、整根运输预制钢管柱，埋设钢管护筒作为导坑，内壁达到护壁效果同时起控制桩孔垂直度的作用，根据钻进深度和地层条件分级引孔，结合扩孔钻头分级扩孔，采用HPE垂直插管机对接钢管柱与工具节保证对接精度及钢管柱垂直度，履带吊与全回转钻机控制大长度钢管柱吊装下放，同时结合清孔及灌注混凝土时的超声波检测，有效提高了成孔效率和质量，保证率施工安全。
Construction method for super-large and super-long steel pipe column of hard rock stratum foundation pit
A construction method for a super-large and super-long steel pipe column of a hard rock stratum foundation pit comprises the following steps of machining and transporting the super-large and super-long prefabricated steel pipe column, burying a steel pipe pile casing to construct a pilot tunnel, conducting hole guiding in a grading mode, reaming in a grading mode, brushing a wall and cleaning holes, conducting HPE positioning, hoisting a reinforcement cage, hoisting the steel pipe column, conducting secondary hole cleaning and pouring concrete. According to the construction method, factory prefabrication is conducted, the whole prefabricated steel pipe column is transported, the steel pipe pile casing is buried to serve as a pilot tunnel, the inner wall achieves the wall protection effect, meanwhile, the effect of controlling the perpendicularity of a pile hole is achieved, hole guiding is conducted in a graded mode according to the drilling depth and the stratum condition, and graded reaming is conducted in combination with a reamer bit; the HPE vertical pipe inserting machine is used for being in butt joint with the steel pipe column and the tool section to guarantee the butt joint precision and the perpendicularity of the steel pipe column, the crawler crane and the full-slewing drilling machine control hoisting and lowering of the large-length steel pipe column, meanwhile, ultrasonic detection during hole cleaning and concrete pouring is combined, the hole forming efficiency and quality are effectively improved, and the construction safety is guaranteed.
一种硬岩地层基坑超大超长钢管柱施工方法，包括以下步骤：超大超长预制钢管柱加工运输、埋设钢管护筒施作导坑、分级引孔、分级扩孔、刷壁清孔、HPE定位、吊放钢筋笼、吊装钢管柱、二次清孔及灌注混凝土。本发明施工方法通过工厂预制、整根运输预制钢管柱，埋设钢管护筒作为导坑，内壁达到护壁效果同时起控制桩孔垂直度的作用，根据钻进深度和地层条件分级引孔，结合扩孔钻头分级扩孔，采用HPE垂直插管机对接钢管柱与工具节保证对接精度及钢管柱垂直度，履带吊与全回转钻机控制大长度钢管柱吊装下放，同时结合清孔及灌注混凝土时的超声波检测，有效提高了成孔效率和质量，保证率施工安全。
Construction method for super-large and super-long steel pipe column of hard rock stratum foundation pit
一种硬岩地层基坑超大超长钢管柱施工方法
GUO HAOSEN (author) / ZHANG HUIQIN (author) / WEN HEYI (author) / ZHU SHUNSHUN (author) / QIAO WEI (author) / YU YANG (author) / TONG JIAQI (author) / ZHOU KAI (author) / JIANG YIHUI (author) / LIU JIHUI (author)
2024-07-19
Patent
Electronic Resource
Chinese
Construction method for rotary drilling of super-hard rock stratum
| European Patent Office | 2021
Construction process of hard rock stratum pile foundation
| European Patent Office | 2023
Super-long and super-large pile foundation construction tray
| European Patent Office | 2024
Pipe-jacking tunneling construction method for hard rock stratum
| European Patent Office | 2023
| European Patent Office | 2024