Stress balance and vibration-reduction disaster-preventing high bridge pier structure of highway high and steep slope and construction method

Abstract

The invention discloses a stress balance and vibration-reduction disaster-preventing high bridge pier structure of a highway high and steep slope and a construction method. Through pre-stressed anchorcables (6), a horizontal thrust effect of a slope body on the open-air pile-foundation high bridge pier structure is eliminated; through inner arch system beams (5), prestress and slope horizontal thrust disperse acting stress of the pile-foundation high bridge pier structure; through vibration-reduction rubber gaskets (7), the flexibility of the bridge pier structure is improved, and structure ineffectiveness and slope disasters, caused by vibration, of the pile-foundation bridge pier structure and the slope body are reduced. The construction method includes the steps that materials are prepared and made, a pile foundation is constructed, drilling is conducted, the inner arch system beams (5) are constructed, and casting tensioning of the pre-stressed anchor cables (6) and bridge pier constructing are conducted, and the construction method is simple. The stress balance and vibration-reduction disaster-preventing high bridge pier structure of the highway high and steep slope and the construction method have broad application prospects for reinforcement, vibration reduction, disaster prevention and others of the pile-foundation high bridge pier structure of the high and steep slopeof transportation infrastructure in ravine terrains of a mountainous area.

Description

technical field [0001] The invention relates to the field of slope retaining and high bridge pier bridge engineering, in particular to a high bridge pier structure and construction method for high and steep highway slope stress balance, vibration reduction and disaster prevention prestressed anchor cable pile foundation. Background technique [0002] The pile foundation and pier structure of highway bridges has good applicability in the construction of transportation infrastructure in mountainous areas with large terrain fluctuations, especially in the dense vertical and horizontal areas of ravines and hills. In recent years, with the increase of investment in infrastructure and the improvement and improvement of the theoretical and technological level of my country's construction industry, pile-based high bridge pier structures located on various rock geological slopes have emerged continuously, and at the same time, due to slope failures, The engineering accidents caused by...

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Problems solved by technology

However, accidents caused by the failure of anti-sliding structures and the instability of pile-based high bridge piers are frequent. At the same time, the construction of anti-sliding piles and other structures cannot avoid the excavation of the hillside, which seriously damages the ecology and does no

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