Combined energy dissipation shed frame structure for preventing rockfall of high and steep slope in earthquake region

Abstract

The invention discloses a combined energy dissipation shed frame structure for preventing rock rolling-down hazards of a high and steep slope in highway construction, and belongs to the field of highway disaster prevention and control and post-disaster reconstruction engineering in an earthquake region. The combined energy dissipation shed frame structure is composed of a top surface anti-impact system tightly connected with an existing slope, a top surface supporting system composed of a three-dimensional steel frame system, a shed frame main structure composed of a cross beam and supporting steel tube stand columns on the two sides, a close-to-mountain side anchoring system for anchoring the top surface anti-impact system and the shed frame main structure, and a cast-in-place concrete bed formed by welding fixing pedestals to the bottoms of the steel tube stand columns and driving the fixing pedestals into a foundation through anchor rods. According to the combined energy dissipation shed frame structure, potential safety hazards caused by crag rockfall of a high and steep slope in an earthquake region to highway construction and vehicle driving are prevented, and the stability and seismic capacity of the shed frame structure are effectively improved. Compared with a traditional shed tunnel structure, the combined energy dissipation shed frame structure greatly shortens construction time and is beneficial to rapid traffic keeping and anti-disaster capacity improving.

Description

technical field [0001] The invention relates to a scaffolding structure used for high and steep slopes in highway construction to prevent the hazards of rolling rocks, and is especially suitable for the field of highway geological disaster prevention and post-disaster reconstruction engineering in earthquake areas. Background technique [0002] my country's highway construction is in a stage of rapid development. In recent years, the country has invested more and more in the western region. However, due to the extremely complex topography and landforms in the western region of my country, many traffic routes inevitably run between valleys and hills, while high and steep Dangerous rocks and falling rocks under the terrain pose serious safety hazards to road driving. At the same time, my country is an earthquake-prone country. The slope rock and soil instability, collapse, and landslides caused by earthquakes frequently occur, causing great damage to transportation, life and pr...

AI Technical Summary

Problems solved by technology

[0003] In order to ensure driving safety, reinforced concrete shed structures are often used in engineering construction. The traditional reinforced concrete shed structure has a long construction period and high cost, and the construction interferes greatly with transportation. Sand is often used as a buffer material. The cushion not only has poor energy dissipation, but also seriously affects the stability of the shed structure due to its heavy weight

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