Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Foundation construction drill cylinder down-the-hole hammer construction technology under complex geological conditions
The invention discloses a construction process of a drill cylinder down-the-hole hammer for foundation construction under complex geological conditions, which belongs to the field of drilling and comprises the following steps of: measuring and positioning on a construction site foundation, planning a pile foundation construction sequence and placing a drilling machine in place; a drilling barrel down-the-hole hammer drilling tool is adopted, a drilling machine is started, a drilling barrel rotates to drill downwards, meanwhile, quantitative water is injected into a drill hole, and after a certain depth, drilling slag is pumped out; when drilling is conducted to the complex hard stratum, the down-the-hole hammer stretches out of the drill barrel, air is pressed into the piston barrel, the down-the-hole hammer vibrates, the down-the-hole hammer strikes and crushes the complex hard stratum, and drilling continues to be conducted downwards after the down-the-hole hammer penetrates through the complex stratum; and after downward drilling is conducted to the designed depth, a grouting pipe is started to suck sediment at the bottom of the hole to clean the hole, and after hole cleaning is completed, the drill cylinder down-the-hole hammer drilling tool is lifted upwards, concrete is poured into the drilled hole in a pressing mode till the whole pile foundation construction is completed, and the next pile position is transferred. For various complex geological conditions, the foundation construction technology process is simple, the drilling tool does not need to go out of the well repeatedly, and practicability is high.
本发明公开复杂地质条件下基础施工钻筒潜孔锤施工工艺，属于钻孔领域，其工艺流程为：在工地基础上测量定位，规划桩基施工顺序，钻机就位；采用钻筒潜孔锤钻具，开动钻机，钻筒旋转向下钻孔，同时向钻孔内注入定量的水，一定深度之后，将钻渣抽出；下钻至复杂硬质地层时，潜孔锤伸出钻筒，将空气压入活塞筒，潜孔锤振动，潜孔锤对复杂硬质地层打击粉碎，穿透复杂地层后继续向下钻孔；下钻至设计深度后，开启注浆管吸取孔底沉渣清孔，完成清孔后钻筒潜孔锤钻具在向上提升的同时，向钻孔内压灌混凝土，直至完成整个桩基施工，转移至下一个桩位。本发明面对各种复杂地质条件，基础施工工艺流程简单，钻具不必反复出井，实用性强。
Foundation construction drill cylinder down-the-hole hammer construction technology under complex geological conditions
The invention discloses a construction process of a drill cylinder down-the-hole hammer for foundation construction under complex geological conditions, which belongs to the field of drilling and comprises the following steps of: measuring and positioning on a construction site foundation, planning a pile foundation construction sequence and placing a drilling machine in place; a drilling barrel down-the-hole hammer drilling tool is adopted, a drilling machine is started, a drilling barrel rotates to drill downwards, meanwhile, quantitative water is injected into a drill hole, and after a certain depth, drilling slag is pumped out; when drilling is conducted to the complex hard stratum, the down-the-hole hammer stretches out of the drill barrel, air is pressed into the piston barrel, the down-the-hole hammer vibrates, the down-the-hole hammer strikes and crushes the complex hard stratum, and drilling continues to be conducted downwards after the down-the-hole hammer penetrates through the complex stratum; and after downward drilling is conducted to the designed depth, a grouting pipe is started to suck sediment at the bottom of the hole to clean the hole, and after hole cleaning is completed, the drill cylinder down-the-hole hammer drilling tool is lifted upwards, concrete is poured into the drilled hole in a pressing mode till the whole pile foundation construction is completed, and the next pile position is transferred. For various complex geological conditions, the foundation construction technology process is simple, the drilling tool does not need to go out of the well repeatedly, and practicability is high.
本发明公开复杂地质条件下基础施工钻筒潜孔锤施工工艺，属于钻孔领域，其工艺流程为：在工地基础上测量定位，规划桩基施工顺序，钻机就位；采用钻筒潜孔锤钻具，开动钻机，钻筒旋转向下钻孔，同时向钻孔内注入定量的水，一定深度之后，将钻渣抽出；下钻至复杂硬质地层时，潜孔锤伸出钻筒，将空气压入活塞筒，潜孔锤振动，潜孔锤对复杂硬质地层打击粉碎，穿透复杂地层后继续向下钻孔；下钻至设计深度后，开启注浆管吸取孔底沉渣清孔，完成清孔后钻筒潜孔锤钻具在向上提升的同时，向钻孔内压灌混凝土，直至完成整个桩基施工，转移至下一个桩位。本发明面对各种复杂地质条件，基础施工工艺流程简单，钻具不必反复出井，实用性强。
Foundation construction drill cylinder down-the-hole hammer construction technology under complex geological conditions
复杂地质条件下基础施工钻筒潜孔锤施工工艺
LU YANBAO (Autor:in) / KONG QIUPING (Autor:in) / XU WANQIANG (Autor:in) / ZHENG TIANSHOU (Autor:in) / ZHENG WENMING (Autor:in) / FAN MEILING (Autor:in) / CHEN FUJUN (Autor:in) / ZHANG QIANG (Autor:in)
14.04.2023
Patent
Elektronische Ressource
Chinesisch
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