Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Bridge cast-in-situ bored pile reverse circulation construction device
The invention relates to a bridge cast-in-situ bored pile reverse circulation construction device, and belongs to the field of bridges, the bridge cast-in-situ bored pile reverse circulation construction device comprises a foundation pit protection cylinder, the foundation pit protection cylinder is coaxially embedded in an orifice of a pile hole, a slurry pumping drill rod is coaxially arranged in the pile hole in a penetrating mode, a slurry pool is formed in the ground beside the pile hole, and a drainage pipe is fixedly connected to the foundation pit protection cylinder; one end of the drainage pipe is communicated with the mud pit, the other end of the drainage pipe is communicated with an inner cavity of the foundation pit pile casing and the pile hole, a drainage mechanism is arranged on the foundation pit pile casing and used for enabling mud to rush to the mud pumping drill rod from the foundation pit pile casing, and a water pump is arranged on the drainage pipe. Slurry entering the pile hole rushes to the slurry pumping drill rod, the slurry pumping drill rod can serve as a drainage rod to guide the slurry to descend, the scouring acting force of the slurry on the inner wall of the pile hole in the descending process is low, and the probability of soil collapse of the hole wall is reduced to a certain extent.
本申请涉及一种桥梁钻孔灌注桩反循环施工装置，属于桥梁领域，其包括基坑护筒，所述基坑护筒同轴嵌设于桩孔的孔口处，所述桩孔内同轴穿设有抽浆钻杆，桩孔旁的地面上开设有泥浆池，所述基坑护筒上固定连接有引流管，所述引流管的一端与泥浆池连通，另一端与基坑护筒内腔以及桩孔连通，所述基坑护筒上设有引流机构，所述引流机构用于使泥浆从基坑护筒冲向抽浆钻杆，所述引流管上设置有水泵。本申请使进入桩孔后的泥浆冲向抽浆钻杆，抽浆钻杆便可作为引流杆引导泥浆下降，下降过程中泥浆对桩孔内壁的冲刷作用力较低，一定呈度上降低了孔壁发生土质坍塌的几率。
Bridge cast-in-situ bored pile reverse circulation construction device
The invention relates to a bridge cast-in-situ bored pile reverse circulation construction device, and belongs to the field of bridges, the bridge cast-in-situ bored pile reverse circulation construction device comprises a foundation pit protection cylinder, the foundation pit protection cylinder is coaxially embedded in an orifice of a pile hole, a slurry pumping drill rod is coaxially arranged in the pile hole in a penetrating mode, a slurry pool is formed in the ground beside the pile hole, and a drainage pipe is fixedly connected to the foundation pit protection cylinder; one end of the drainage pipe is communicated with the mud pit, the other end of the drainage pipe is communicated with an inner cavity of the foundation pit pile casing and the pile hole, a drainage mechanism is arranged on the foundation pit pile casing and used for enabling mud to rush to the mud pumping drill rod from the foundation pit pile casing, and a water pump is arranged on the drainage pipe. Slurry entering the pile hole rushes to the slurry pumping drill rod, the slurry pumping drill rod can serve as a drainage rod to guide the slurry to descend, the scouring acting force of the slurry on the inner wall of the pile hole in the descending process is low, and the probability of soil collapse of the hole wall is reduced to a certain extent.
本申请涉及一种桥梁钻孔灌注桩反循环施工装置，属于桥梁领域，其包括基坑护筒，所述基坑护筒同轴嵌设于桩孔的孔口处，所述桩孔内同轴穿设有抽浆钻杆，桩孔旁的地面上开设有泥浆池，所述基坑护筒上固定连接有引流管，所述引流管的一端与泥浆池连通，另一端与基坑护筒内腔以及桩孔连通，所述基坑护筒上设有引流机构，所述引流机构用于使泥浆从基坑护筒冲向抽浆钻杆，所述引流管上设置有水泵。本申请使进入桩孔后的泥浆冲向抽浆钻杆，抽浆钻杆便可作为引流杆引导泥浆下降，下降过程中泥浆对桩孔内壁的冲刷作用力较低，一定呈度上降低了孔壁发生土质坍塌的几率。
Bridge cast-in-situ bored pile reverse circulation construction device
一种桥梁钻孔灌注桩反循环施工装置
CHEN ZHIYU (Autor:in) / ZHU BIZHOU (Autor:in) / XU WENJIANG (Autor:in) / ZHU MINGYE (Autor:in) / LIU XIAODONG (Autor:in) / HU JIAN (Autor:in) / JIANG CHUNYAN (Autor:in) / DONG LILI (Autor:in)
06.06.2023
Patent
Elektronische Ressource
Chinesisch
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