Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Large-diameter cast-in-situ bored pile on deepwater inclined hard bare rock surface and construction method thereof
The invention relates to a deepwater inclined hard bare rock surface large-diameter cast-in-situ bored pile and a construction method thereof, and the construction method comprises a double-layer guide steel pile casing inserting, driving and sinking technology, an inclined rock surface drill bit improved pile hole perpendicularity control technology, a bottom sealing concrete pile casing connection stability improvement technology and an inclined rock surface large-diameter steel pile casing installation technology. The invention discloses an efficient deslagging secondary hole cleaning technology. The invention belongs to the field of pile foundation engineering construction, and not only can improve the installation perpendicularity and stability of the steel casing, effectively control the pile hole drilling perpendicularity, improve the bottom stability of the casing and improve the hole cleaning and pile forming quality, but also ensures the construction quality, greatly improves the field construction efficiency, saves manpower and cost, and improves the construction efficiency. And good technical and economic benefits can be obtained when the method is applied to practical engineering.
本发明涉及深水倾斜坚硬裸岩面大直径钻孔灌注桩及其施工方法，包括：双层导向钢护筒插打沉放技术，倾斜岩面钻头改进桩孔垂直度控制技术，封底混凝土护筒连体稳定性提高技术，倾斜岩面大直径钢护筒安装技术，高效排渣二次清孔技术。本发明属于桩基工程施工领域，不但可以提高钢护筒安装垂直度和稳定性，桩孔钻进垂直度可有效控制，提高护筒底部稳定性，提高清孔和成桩质量，同时保证了施工质量，大大提高现场施工效率，节省人力和成本，应用于实际工程中可取得较好的技术经济效益。
Large-diameter cast-in-situ bored pile on deepwater inclined hard bare rock surface and construction method thereof
The invention relates to a deepwater inclined hard bare rock surface large-diameter cast-in-situ bored pile and a construction method thereof, and the construction method comprises a double-layer guide steel pile casing inserting, driving and sinking technology, an inclined rock surface drill bit improved pile hole perpendicularity control technology, a bottom sealing concrete pile casing connection stability improvement technology and an inclined rock surface large-diameter steel pile casing installation technology. The invention discloses an efficient deslagging secondary hole cleaning technology. The invention belongs to the field of pile foundation engineering construction, and not only can improve the installation perpendicularity and stability of the steel casing, effectively control the pile hole drilling perpendicularity, improve the bottom stability of the casing and improve the hole cleaning and pile forming quality, but also ensures the construction quality, greatly improves the field construction efficiency, saves manpower and cost, and improves the construction efficiency. And good technical and economic benefits can be obtained when the method is applied to practical engineering.
本发明涉及深水倾斜坚硬裸岩面大直径钻孔灌注桩及其施工方法，包括：双层导向钢护筒插打沉放技术，倾斜岩面钻头改进桩孔垂直度控制技术，封底混凝土护筒连体稳定性提高技术，倾斜岩面大直径钢护筒安装技术，高效排渣二次清孔技术。本发明属于桩基工程施工领域，不但可以提高钢护筒安装垂直度和稳定性，桩孔钻进垂直度可有效控制，提高护筒底部稳定性，提高清孔和成桩质量，同时保证了施工质量，大大提高现场施工效率，节省人力和成本，应用于实际工程中可取得较好的技术经济效益。
Large-diameter cast-in-situ bored pile on deepwater inclined hard bare rock surface and construction method thereof
深水倾斜坚硬裸岩面大直径钻孔灌注桩及其施工方法
WANG XINQUAN (Autor:in) / SONG LIANGLIANG (Autor:in)
18.08.2023
Patent
Elektronische Ressource
Chinesisch
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