A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a pile foundation rotary excavating method. The method comprises the following steps: placing a rotary drilling rig in a construction site; a rotary drilling rig is used for drilling; descending the steel casing to a certain depth underground; a drilling machine is started in the steel casing, and soil is taken to the bottom of the casing; a slurry protection wall is formed through grouting; according to design requirements, soil taking drilling, slurry supplementing and soil taking hole forming are carried out; the thickness of sediment in the hole is checked regularly; a pre-manufactured reinforcement cage is hung in the hole; the thickness of the sediment in the hole is checked again, and the sediment in the hole is removed; a guide pipe is hung in the hole and used for follow-up concrete pouring; checking the internal condition of the catheter, and removing sundries in the catheter; a hole cleaning cap is installed at the top end of the guide pipe and used for controlling slurry discharge in the concrete pouring process. Hole bottom slurry is discharged through grouting; secondary hole cleaning is carried out before concrete pouring; starting to pour concrete, and pouring layer by layer according to design requirements; and after concrete pouring is completed, the steel casing is slowly pulled out, and a complete pile foundation structure is formed.
本申请公开了一种桩基旋挖方法。本申请包括：在施工地点就位旋挖钻机；使用旋挖钻机进行开孔；将钢护筒下降至地下一定深度；在钢护筒内启动钻机，取土至护筒底部；采用注浆形成泥浆护壁；根据设计要求进行取土钻进、补浆以及取土成孔；定期检查孔内沉渣的厚度；在孔内吊放预先制作好的钢筋笼；再次检查孔内沉渣的厚度，并清除孔内沉渣；在孔内吊放导管，用于后续混凝土灌注；检查导管内部情况，并清除导管内的杂物；在导管顶端安装清孔帽，用于控制混凝土灌注过程中的泥浆排出；通过注浆将孔底泥浆排出；在混凝土灌注前进行二次清孔；开始灌注混凝土，根据设计要求逐层灌注；当混凝土灌注完成后，将钢护筒缓慢拔出，形成完整的桩基结构。
The invention discloses a pile foundation rotary excavating method. The method comprises the following steps: placing a rotary drilling rig in a construction site; a rotary drilling rig is used for drilling; descending the steel casing to a certain depth underground; a drilling machine is started in the steel casing, and soil is taken to the bottom of the casing; a slurry protection wall is formed through grouting; according to design requirements, soil taking drilling, slurry supplementing and soil taking hole forming are carried out; the thickness of sediment in the hole is checked regularly; a pre-manufactured reinforcement cage is hung in the hole; the thickness of the sediment in the hole is checked again, and the sediment in the hole is removed; a guide pipe is hung in the hole and used for follow-up concrete pouring; checking the internal condition of the catheter, and removing sundries in the catheter; a hole cleaning cap is installed at the top end of the guide pipe and used for controlling slurry discharge in the concrete pouring process. Hole bottom slurry is discharged through grouting; secondary hole cleaning is carried out before concrete pouring; starting to pour concrete, and pouring layer by layer according to design requirements; and after concrete pouring is completed, the steel casing is slowly pulled out, and a complete pile foundation structure is formed.
本申请公开了一种桩基旋挖方法。本申请包括：在施工地点就位旋挖钻机；使用旋挖钻机进行开孔；将钢护筒下降至地下一定深度；在钢护筒内启动钻机，取土至护筒底部；采用注浆形成泥浆护壁；根据设计要求进行取土钻进、补浆以及取土成孔；定期检查孔内沉渣的厚度；在孔内吊放预先制作好的钢筋笼；再次检查孔内沉渣的厚度，并清除孔内沉渣；在孔内吊放导管，用于后续混凝土灌注；检查导管内部情况，并清除导管内的杂物；在导管顶端安装清孔帽，用于控制混凝土灌注过程中的泥浆排出；通过注浆将孔底泥浆排出；在混凝土灌注前进行二次清孔；开始灌注混凝土，根据设计要求逐层灌注；当混凝土灌注完成后，将钢护筒缓慢拔出，形成完整的桩基结构。
Rotary excavating pile foundation double-steel-casing construction method
| European Patent Office | 2021
| European Patent Office | 2022
| European Patent Office | 2024