A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
High-strength precast concrete pile and pouring technology thereof
The invention discloses a high-strength precast concrete pile and a pouring technology thereof, and belongs to the technical field of concrete pile preparation. A pile hole attachment cage and an inner reinforcement body are arranged on the inner and outer sides of a reinforcing cage, the pile hole attachment cage formed by an annular steel cage and a conical embedment steel plate is embedded in apile hole, a first pouring cavity formed therebetween is filled with a first concrete layer, and a strong outer reinforcement layer is formed outside the reinforcing cage; then the reinforcing cage is inserted into the pile hole attachment cage, and a second concrete layer fills between the reinforcing cage and the pile hole attachment cage to achieve mechanical bonding therebetween; then the inner reinforcement body is placed in the reinforcing cage, the inner reinforcement body comprises a hollow injection steel pipe located in the middle and a plurality of fan-shaped reinforcement pieces distributed on the outer side of the hollow injection steel pipe, and a third concrete layer fills between each two fan-shaped reinforcement pieces; according to the pouring technology of inserting filling layer by layer from outside to inside, on the one hand, the concrete pile is not liable to scatter, and on the other hand, the bearing capacity and pull-out resistance of a solid square pile areeffectively improved.
本发明公开了一种高强度预制混凝土桩及其浇筑工艺，属于混凝土桩制备技术领域，通过在钢筋笼的内外侧设置桩孔贴附笼和内加强体,环形钢笼与锥形嵌入钢板所形成的桩孔贴附笼嵌设于桩孔内，在两者所形成的第一浇筑腔内填充第一混凝土层，实现在钢筋笼外侧形成一个坚固的外围加强层，再将钢筋笼插入桩孔贴附笼内，钢筋笼与桩孔贴附笼之间填充第二混凝土层，实现两者的机械粘结，再向钢筋笼内放置内加强体,内加强体包括位于中部的中空注料钢管以及分布于中空注料钢管外侧的多个扇形加固片，多个扇形加固片两两之间填充第三混凝土层，利用由外向内的层层嵌设填充的浇筑工艺，一方面混凝土桩不易散落，另一方面有效提高实心方桩的承载力、抗拔力。
High-strength precast concrete pile and pouring technology thereof
The invention discloses a high-strength precast concrete pile and a pouring technology thereof, and belongs to the technical field of concrete pile preparation. A pile hole attachment cage and an inner reinforcement body are arranged on the inner and outer sides of a reinforcing cage, the pile hole attachment cage formed by an annular steel cage and a conical embedment steel plate is embedded in apile hole, a first pouring cavity formed therebetween is filled with a first concrete layer, and a strong outer reinforcement layer is formed outside the reinforcing cage; then the reinforcing cage is inserted into the pile hole attachment cage, and a second concrete layer fills between the reinforcing cage and the pile hole attachment cage to achieve mechanical bonding therebetween; then the inner reinforcement body is placed in the reinforcing cage, the inner reinforcement body comprises a hollow injection steel pipe located in the middle and a plurality of fan-shaped reinforcement pieces distributed on the outer side of the hollow injection steel pipe, and a third concrete layer fills between each two fan-shaped reinforcement pieces; according to the pouring technology of inserting filling layer by layer from outside to inside, on the one hand, the concrete pile is not liable to scatter, and on the other hand, the bearing capacity and pull-out resistance of a solid square pile areeffectively improved.
本发明公开了一种高强度预制混凝土桩及其浇筑工艺，属于混凝土桩制备技术领域，通过在钢筋笼的内外侧设置桩孔贴附笼和内加强体,环形钢笼与锥形嵌入钢板所形成的桩孔贴附笼嵌设于桩孔内，在两者所形成的第一浇筑腔内填充第一混凝土层，实现在钢筋笼外侧形成一个坚固的外围加强层，再将钢筋笼插入桩孔贴附笼内，钢筋笼与桩孔贴附笼之间填充第二混凝土层，实现两者的机械粘结，再向钢筋笼内放置内加强体,内加强体包括位于中部的中空注料钢管以及分布于中空注料钢管外侧的多个扇形加固片，多个扇形加固片两两之间填充第三混凝土层，利用由外向内的层层嵌设填充的浇筑工艺，一方面混凝土桩不易散落，另一方面有效提高实心方桩的承载力、抗拔力。
High-strength precast concrete pile and pouring technology thereof
一种高强度预制混凝土桩及其浇筑工艺
GU XINPING (author)
2020-11-13
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
Precast concrete pile processing method and precast concrete pile
| European Patent Office | 2020