Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Pore-forming wall protection method for pebble bed pile foundation
The invention discloses a pebble bed pile foundation pore-forming wall protection method, which comprises the following steps of construction preparation, measurement positioning, primary impact pore-forming, irrigation desert soil filling, irrigation desert soil water immersion, standing, secondary impact pore-forming and foundation pouring, the irrigation desert soil layer is filled by adopting the primary impact pore-forming, and the collapse condition of a pile foundation hole I can occur when a hole is drilled in a pebble soil layer. In the secondary impact hole forming process, the slurry wall protecting material is extruded to be attached to the hole wall, the fully-wetted slurry wall protecting material is attached to the hole wall, and the slurry wall protecting material is extruded to reinforce the hole wall, so that the hole wall subjected to secondary impact hole forming cannot collapse, and it is ensured that the quality of a second pile foundation hole is qualified; the phenomenon that the hole wall of the sandy gravel stratum collapses can be effectively prevented, the stability of the hole wall is maintained, and the reliability of drilling and hole forming is greatly improved.
本发明公开了一种卵石层桩基成孔护壁方法，包括以下步骤：施工准备、测量定位、一次冲击成孔、填充灌漠土、水浸灌漠土、静置、二次冲击成孔和基础浇筑，采用一次冲击成孔进行填充灌漠土层，在卵石土层上钻孔会出现桩基孔一坍塌情况，再进行与水液混合形成泥浆护壁料，在二次冲击成孔过程中，挤压泥浆护壁料附着孔壁，于孔壁附着充分湿润的泥浆护壁料，挤压泥浆护壁料加固孔壁，因此二次冲击成孔的孔壁不会塌孔，确保桩基孔二质量合格，可以有效地防止砂卵石地层孔壁坍塌现象发生，维持孔壁的稳定性，大大提高了钻进成孔的可靠性。
Pore-forming wall protection method for pebble bed pile foundation
The invention discloses a pebble bed pile foundation pore-forming wall protection method, which comprises the following steps of construction preparation, measurement positioning, primary impact pore-forming, irrigation desert soil filling, irrigation desert soil water immersion, standing, secondary impact pore-forming and foundation pouring, the irrigation desert soil layer is filled by adopting the primary impact pore-forming, and the collapse condition of a pile foundation hole I can occur when a hole is drilled in a pebble soil layer. In the secondary impact hole forming process, the slurry wall protecting material is extruded to be attached to the hole wall, the fully-wetted slurry wall protecting material is attached to the hole wall, and the slurry wall protecting material is extruded to reinforce the hole wall, so that the hole wall subjected to secondary impact hole forming cannot collapse, and it is ensured that the quality of a second pile foundation hole is qualified; the phenomenon that the hole wall of the sandy gravel stratum collapses can be effectively prevented, the stability of the hole wall is maintained, and the reliability of drilling and hole forming is greatly improved.
本发明公开了一种卵石层桩基成孔护壁方法，包括以下步骤：施工准备、测量定位、一次冲击成孔、填充灌漠土、水浸灌漠土、静置、二次冲击成孔和基础浇筑，采用一次冲击成孔进行填充灌漠土层，在卵石土层上钻孔会出现桩基孔一坍塌情况，再进行与水液混合形成泥浆护壁料，在二次冲击成孔过程中，挤压泥浆护壁料附着孔壁，于孔壁附着充分湿润的泥浆护壁料，挤压泥浆护壁料加固孔壁，因此二次冲击成孔的孔壁不会塌孔，确保桩基孔二质量合格，可以有效地防止砂卵石地层孔壁坍塌现象发生，维持孔壁的稳定性，大大提高了钻进成孔的可靠性。
Pore-forming wall protection method for pebble bed pile foundation
一种卵石层桩基成孔护壁方法
XIE HOUJUN (Autor:in) / HUANG CHUNLONG (Autor:in) / YANG XUN (Autor:in) / CHENG LINFENG (Autor:in) / FANG JUN (Autor:in) / ZHANG XIAOWEI (Autor:in)
03.10.2023
Patent
Elektronische Ressource
Chinesisch
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