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Post stress method stake body prestressed antislid stake and construction method

A technology of anti-slide piles and prestressing, which is applied in the direction of sheet pile walls, foundation structure engineering, construction, etc., can solve problems such as construction inconvenience, and achieve the effects of convenient conditions, reduced section, and improved performance

Inactive Publication Date: 2005-05-25
CHINA MERCHANTS CHONGQING COMM RES & DESIGN INST
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Problems solved by technology

[0005] In the patent application number 00132690.2, the patented technology of "a prestressed anti-slide pile and its method for strengthening slopes" is disclosed. This patented technology is to make prestressed columns in the factory, that is to say, it is pre-tensioned The method of anti-slide piles has problems such as transportation and hoisting of prefabricated prestressed columns, which brings inconvenience to construction

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  • Post stress method stake body prestressed antislid stake and construction method

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Embodiment Construction

[0027] As shown in the accompanying drawings, there is a reinforcement cage 3 in the first pouring concrete 7, and a bellows 5 is arranged in the cage of the reinforcement cage 3, and a steel strand 4 is placed in the bellows 5, and the two ends of the steel strand 4 protrude from the bellows 5. The lower end of the steel strand 4 is connected with the pile bottom anchoring section anchor 6, and the upper end is connected with the pile top anchor 2, and the upper part of the pile top anchor 2 has the second pouring concrete 1.

[0028] Before making the component of the present invention, according to the actual engineering situation of the landslide, the working conditions and working force of the anti-slide pile are calculated to obtain the selection of the number of prestressed tendons, as well as the number and structure of ordinary steel bars, and the label of concrete.

[0029] The construction method of the present invention: according to the geological conditions of the...

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Abstract

The present invention adopts construction on ground surface, and makes post-tensional pile-body prestressed anti-slide pile. Its structure is as follows: firstly-poured concrete interior has steel reinforcement cage, cage edge interior has corrugated pipe, in the corrugated pipe interior a stranded wire is placed, two ends of said stranded wire are extended from said corrugated pipe, lower end of said stranded wire is connected with anchorage device of anchored part in the pile bottom, its upper end is connected with anchorage device of pile top, and the upper portion of anchorage device of pile type has secondary poured concrete. Said invention also provides its construction method.

Description

1. Technical field [0001] The invention relates to a prestressed concrete structure and a construction method. 2. Background technology [0002] With the application and development of reinforced concrete structures, prestressing technology has been continuously improved and rapidly promoted. [0003] Anti-slide piles are often used in landslide control projects. Anti-slide piles are an anti-slide structure that transmits the thrust of landslides to stable strata by means of the interaction between piles and surrounding rock and soil. The main reason is that it has strong anti-slide force and flexible pile positions. , construction is simple, safe and so on. At present, reinforced concrete piles are the most used in my country. In engineering practice, due to the differences in landslide types, geological conditions and landforms, different types of anti-slide piles are used, and the control effect and project cost are also different. [0004] The structural forms of anti...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/36E02D5/54E02D5/58
Inventor 杨建国
Owner CHINA MERCHANTS CHONGQING COMM RES & DESIGN INST
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