Cast-in-situ dado structure for manually excavated pile and construction method

A technique for manually digging piles and wall structures, which is applied in foundation structure engineering, sheet pile walls, buildings, etc. It can solve problems such as inconsistent construction methods, achieve high strength and stability of retaining walls, and overcome the need for transportation and hoisting of prefabricated retaining walls in mountainous areas Effect
CN106400799AActive Publication Date: 2017-02-15POWERCHINA HUADONG ENG COPORATION LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
POWERCHINA HUADONG ENG COPORATION LTD
Publication Date
2017-02-15

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Abstract

The invention firstly provides a cast-in-situ dado structure for a manually excavated pile. The cast-in-situ dado structure comprises a locking beam on the horizontal plane of an orifice soil body and a dado on the pile side wall, and the dado comprises an orifice connecting section dado body and a hole interior section dado body. The invention further provides a construction method for the cast-in-situ dado structure for the manually excavated pile. A dado system for the manually excavated pile is formed in the mode that steel reinforcement cages are bound and concrete is poured in situ, and thus the problem that transportation and hoisting of prefabricated dados are difficult in mountain areas can be solved, the size of the dado system can be flexibly adjusted according to the size of the pile body, and the strength and stability of the dado are higher than those of prefabricated dados.
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Description

technical field

[0001] The invention belongs to the field of pile foundation engineering design and construction in geotechnical engineering, and in particular relates to a cast-in-situ retaining wall structure and a construction method for artificial hole-digging piles. Background technique

[0002] Manual digging pile refers to the pile body formed by manpower digging to form a circular or square pile hole, placing a steel cage and then pouring concrete. Manual excavation piles are widely used in foundation engineering and slope engineering in my country. At present, there is no corresponding normative standard for the evaluation method of soil stability in manual excavated piles. During construction, the minimum requirements for construction technology are often determined based on experience, and accidents of pile hole soil instability occur from time to time. The instability of the hole wall of the manually excavated pile will not only lead to the re-excavation of the ...

Claims

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