卵石层及红砂岩地质条件下的钻孔立柱桩施工关键技术

Key Construction Technology for Bored Column Pile Under Geological Condition of Pebble Bed and Red Sandstone

详细介绍了在我国西北地区砂岩地质条件下,从设备选型、施工工艺的选择、调控和改善泥浆性能、桩端后注浆等方面采取的关键施工措施,确保了钻孔立柱桩施工质量,满足了保护周边环境的要求。该施工技术值得进一步推广,可供类似工程借鉴。

Abstract： The key construction measures in terms of the equipment selection, the choice of construction technology, the control and improvement of mud property, the pile-end post-grouting have been introduced in detail under the sandstone geological condition in the Northwest China region, which ensured the construction quality of the bored column pile and met the requirement of protecting the surrounding environment and can provide references for similar projects.