Wedge-shaped debris flow-dividing blocking device and construction method thereof

Abstract

The invention discloses a wedge-shaped debris flow-dividing blocking device and a construction method thereof. The device comprises a circular-arc-shaped blocking wall and two wing-shaped blocking walls. The circular-arc-shaped blocking wall is located at the foremost end of the whole device, and the wing-shaped blocking walls are fixed to the two sides symmetrically. Unbonded prestress systems are arranged in the circular-arc-shaped blocking wall and the wing-shaped blocking walls correspondingly. Each unbonded prestress system comprises a plurality of vertical unbonded prestress stranded steel wire devices which are composed of stranded steel wires, anchorage devices and corrugated pipes. Foundation slabs are arranged at the bottoms of the circular-arc-shaped blocking wall and the wing-shaped blocking walls correspondingly, and uplift pile foundations are additionally arranged under the foundation slabs provided with the unbonded prestress systems correspondingly. According to the device and method thereof, the unbonded prestress systems are arranged in the large stress areas, a good energy consumption effect is achieved, and dynamic response of the whole device is reduced. Whenthe device is impacted by debris, the flowing direction of the debris can be changed while the stability of the device is guaranteed, the impact energy is dissipated, and the safety of significant buildings or structures behind the device is guaranteed.

Description

technical field [0001] The invention relates to the field of mud-rock flow disaster prevention, in particular to a wedge-shaped mud-rock flow diversion blocking device and a construction method thereof. Background technique [0002] my country is one of the countries in the world that suffers from debris flow hazards more seriously, causing huge losses every year due to debris flow disasters. Therefore, the research and prevention of debris flow disasters are particularly urgent and important. In recent years, frequent human activities have destroyed the ecological environment of nature and to a certain extent also contributed to the occurrence of mudslides. An important means of debris flow disaster prevention is to build debris flow retaining dams, but the current debris flow retaining dams still have many shortcomings. The traditional retaining dams bear the impact load of debris flow on the front, which will make the impact load on the dam body become very large, resul...

AI Technical Summary

Problems solved by technology

An important means of debris flow disaster prevention is to build debris flow retaining dams, but the current debris flow retaining dams still have many shortcomings. The traditional retaining dams bear the impact load of debris flow on the front, which will make the impact load on the dam body become very large, resulting in waste of material

And excessive impact load may damage the retaining dam and cause more serious disasters

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