Screw-in uplift pile foundation
A technology of anti-uplift piles and basic bodies, which is applied in the direction of sheet pile walls, foundation structure engineering, drilling equipment, etc., can solve the problems of poor anti-uplift performance of pile foundations, and achieve improved tensile performance, improved efficiency, enhanced stability and The effect of tensile
Active Publication Date: 2021-10-12
山东清隆建筑工程有限公司
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Problems solved by technology
[0003] In view of this, the object of the present invention is to provide a screw-in type uplift pile foundation to solve the technical problem of poor uplift resistance of the pile foundation
Method used
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[0029] combine figure 1 , figure 2 , a screw-in type uplift pile foundation, comprising a pile basic body 1, a wooden formwork 2, a steel formwork 3 and a drilling mechanism.
[0030] The pile basic body 1 includes a steel structure when it is not poured, and forms an integral reinforced concrete structure after pouring. The circumferential direction of the reinforcement structure has a first threaded portion in the shape of an external thread. The wooden formwork 2 is formed with a second threaded part imitating the first threaded part. The wooden formwork 2 includes an upper wood part and a lower wood part. The upper end of the lower wood part is formed with a first dismounting groove. In the first dismounting groove An internal thread is provided, and a first dismounting ring is formed on the bottom of the upper wood part. The first dismounting ring has external threads, and the first dismounting ring is screwed into the first dismounting groove. The steel template 3 is...
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The invention relates to the field of construction engineering, and specifically discloses a screw-in type uplift pile foundation, which includes a pile basic body, a wooden formwork, a steel formwork and a drilling mechanism; the pile basic body includes a steel bar structure, and the steel bar structure There is a first threaded portion in the shape of an external thread in the circumferential direction, a second threaded portion imitating the first threaded portion is formed on the wooden formwork, a third threaded portion imitating the second threaded portion is formed on the steel formwork, and the wooden formwork The formwork is sheathed on the outside of the steel structure, and the steel formwork is sheathed on the outside of the wooden formwork; the drilling mechanism includes a tapered drilling head, and the drilling head is detachably arranged at the bottom of the steel formwork. The purpose of the invention is to solve the technical problem of poor pullout resistance of pile foundations.
Description
technical field [0001] The invention relates to the field of construction engineering, and specifically discloses a screw-in type uplift pile foundation. Background technique [0002] At present, the traditional cylindrical pile structure is prone to loosening and longitudinal sliding in the soft soil layer, and there are defects such as serious insufficient pull-out resistance, insufficient lateral shear resistance, and insufficient dynamic load resistance, which directly affect the building foundation. stability and reliability. In traditional construction, in order to improve the stability of the building foundation in soft soil and increase the friction between the pile and the soil layer, the usual method is to simply increase the depth of the pile and penetrate into the foundation soil as deep as possible. body, the difficulty of construction increases, the construction period is long, resulting in high construction costs, and the increase in the self-weight of the pi...
Claims
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IPC IPC(8): E02D5/72E02D5/52E02D31/12E21B10/62E21B7/00
CPCE02D5/526E02D5/72E02D31/12E21B7/00E21B10/62
Inventor 贺芳
Owner 山东清隆建筑工程有限公司