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A platform for research: civil engineering, architecture and urbanism
Long spiral drilling machine for cofferdam-free underwater cast-in-place pile construction and construction method
The invention discloses a long spiral drilling machine for cofferdam-free underwater cast-in-place pile construction and a construction method, and relates to the field of underwater pile construction.The long spiral drilling machine comprises a machine body, a first power head is slidably connected to the machine body in the vertical direction, a spiral drilling rod is rotatably connected to the first power head, and a first motor used for driving the spiral drilling rod to rotate is arranged on the first power head; a second power head is slidably connected to the lower portion of the machine body and the lower portion of the first power head, the second power head is detachably connected with a pile casing allowing the spiral drill rod to coaxially penetrate out, the outer wall of a spiral blade on the spiral drill rod abuts against the inner wall of the pile casing, and a first driving assembly used for driving the second power head to vertically move is arranged on the second power head. The lower end of the spiral drill rod is moved to the lower end of the pile casing, and the spiral blade of the spiral drill rod abuts against the inner wall of the pile casing, so that water can be prevented from entering the pile casing when the pile casing is inserted into a soil layer, drilling work of the spiral drill rod is facilitated, cofferdam construction is not needed, and construction efficiency is improved.
本申请公开了一种免围堰水下灌注桩施工用长螺旋钻机及施工方法，涉及水下桩施工领域，其包括机体，机体上沿竖直放滑动连接有动力头一，动力头一上转动连接有螺旋钻杆，动力头一上设有用于驱动螺旋钻杆转动的电机一，机体与动力头一下方滑动连接有动力头二，动力头二上可拆卸连接有供螺旋钻杆同轴穿出的护筒，螺旋钻杆上的螺旋叶片外壁和护筒内壁抵接，动力头二上设有用于驱动动力头二竖直移动的驱动组件一，本申请通过在机体上设置护筒，并将螺旋钻杆下端移动至护筒下端，而螺旋钻杆的螺旋叶片和护筒内壁抵接，从而在护筒插入土层时可以防止水进入到护筒内，方便螺旋钻杆的钻孔工作，且无需进行围堰施工，提升施工效率。
Long spiral drilling machine for cofferdam-free underwater cast-in-place pile construction and construction method
The invention discloses a long spiral drilling machine for cofferdam-free underwater cast-in-place pile construction and a construction method, and relates to the field of underwater pile construction.The long spiral drilling machine comprises a machine body, a first power head is slidably connected to the machine body in the vertical direction, a spiral drilling rod is rotatably connected to the first power head, and a first motor used for driving the spiral drilling rod to rotate is arranged on the first power head; a second power head is slidably connected to the lower portion of the machine body and the lower portion of the first power head, the second power head is detachably connected with a pile casing allowing the spiral drill rod to coaxially penetrate out, the outer wall of a spiral blade on the spiral drill rod abuts against the inner wall of the pile casing, and a first driving assembly used for driving the second power head to vertically move is arranged on the second power head. The lower end of the spiral drill rod is moved to the lower end of the pile casing, and the spiral blade of the spiral drill rod abuts against the inner wall of the pile casing, so that water can be prevented from entering the pile casing when the pile casing is inserted into a soil layer, drilling work of the spiral drill rod is facilitated, cofferdam construction is not needed, and construction efficiency is improved.
本申请公开了一种免围堰水下灌注桩施工用长螺旋钻机及施工方法，涉及水下桩施工领域，其包括机体，机体上沿竖直放滑动连接有动力头一，动力头一上转动连接有螺旋钻杆，动力头一上设有用于驱动螺旋钻杆转动的电机一，机体与动力头一下方滑动连接有动力头二，动力头二上可拆卸连接有供螺旋钻杆同轴穿出的护筒，螺旋钻杆上的螺旋叶片外壁和护筒内壁抵接，动力头二上设有用于驱动动力头二竖直移动的驱动组件一，本申请通过在机体上设置护筒，并将螺旋钻杆下端移动至护筒下端，而螺旋钻杆的螺旋叶片和护筒内壁抵接，从而在护筒插入土层时可以防止水进入到护筒内，方便螺旋钻杆的钻孔工作，且无需进行围堰施工，提升施工效率。
Long spiral drilling machine for cofferdam-free underwater cast-in-place pile construction and construction method
一种免围堰水下灌注桩施工用长螺旋钻机及施工方法
WU DANLEI (author) / ZHENG JIANPING (author) / NIE KAI (author) / WU ZAN (author) / WU PENGPENG (author)
2022-10-11
Patent
Electronic Resource
Chinese
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