Device for preventing bridge abutment deviation and sand leakage and implementation method thereof

Abstract

The invention relates to the fields of highway traffic engineering, bridge engineering, geotechnical engineering and the like, in particular to a device for preventing bridge abutment deviation and sand leakage. The device comprises a steel box, wherein the two sides of the inner wall of the steel box are correspondingly connected with longitudinal steel plates, the rear sides of the two longitudinal steel plates are fixedly connected with the inner wall of the steel box through transverse steel plates correspondingly, supporting channel steel is fixedly connected below the bottoms of the twolongitudinal steel plates, the two ends of the supporting channel steel are perpendicularly connected to the inner wall of the steel box, a horizontal type steel plate which is horizontal is arrangedbetween the two longitudinal steel plates, the horizontal type steel plate is fixedly connected with the upper portions of the two pieces of supporting channel steel, a vertical channel used for containing a bridge abutment is formed between the two longitudinal steel plates and the horizontal type steel plate, and a polytetrafluoroethylene plate is fixedly adhered to the inner side walls of the two longitudinal steel plates and the upper surface of the horizontal type steel plate correspondingly. The invention provides the device for preventing bridge abutment deviation and sand leakage and an implementation method thereof. The device is convenient to mount, fund-saving, capable of being repeated used, capable of really reflecting the displacement response of the bridge abutment under theaction of internal and external factors, high in test precision and reliable in conclusion.

Description

Technical field: [0001] The invention relates to the fields of highway traffic engineering, bridge engineering, geotechnical engineering and the like, in particular to a device for preventing abutment deviation and sand leakage and an implementation method thereof. Background technique: [0002] As my country's economic construction continues to make remarkable achievements, the highway transportation industry has also been greatly developed. For countries with complex geological structures like my country, the complexity of bridge construction is high in design, construction, and detailed structure construction. Unprecedented, but most vexing for designers in terms of overall bridge construction is the interaction between the beam structure and the soil. [0003] As we all know, the interaction between the seamless bridge and the soil is an unsolved problem in the world today, mainly because compared with the traditional bridge with slots, the superstructure of the seamless ...

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Problems solved by technology

[0003] As we all know, the interaction between the seamless bridge and the soil is an unsolved problem in the world today, mainly because compared with the traditional bridge with slots, the superstructure of the seamless bridge is connected to the abutment with full bending moment so that the whole The bridge forms a whole, but it does not fundamentally solve the influence of the displacement of the beam body caused by internal and external factors. The difference is that it is the integrity of the seamless bridge that makes the influence of the earth pressure behind the abutment have to be considered. However, due to problems such as test conditions and lack of knowledge of test personnel, the traditional indoor model test of seamless bridges does not constrain the abutment along the lateral direction of the girder body, resulting in insufficient test accuracy, and the test conclusions are biased against actual engineering guidance

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