Blocking structure for debris flow disaster control

Abstract

The invention discloses a blocking structure for debris flow disaster control and a construction method thereof, and belongs to the technical field of design and construction of water conservancy and hydropower engineering buildings. The provided blocking structure for debris flow disaster control and the construction method thereof are low in cost, short in construction period and capable of being repeatedly used. The blocking structure comprises a deep-buried foundation system and a debris flow blocking system; and the debris flow blocking system is detachably arranged in a gully needing debris flow disaster control through the deep-buried foundation system arranged in a foundation in advance. According to the construction method, the construction work of the blocking structure is completed according to the sequence of anchor hole construction, anchor rod insertion, grouting, steel plate set fixing and connecting and finally debris flow blocking system installation.

Description

technical field [0001] The invention relates to a retaining structure, in particular to a retaining structure for controlling mud-rock flow disasters, and belongs to the technical field of design and construction of water conservancy and hydropower engineering buildings. The invention also relates to a construction method for the installation of said retaining structure. Background technique [0002] Explanation of terms: [0003] Steel structure: a structural type mainly composed of steel materials such as section steel and steel plate; [0004] Debris flow: Debris flow is a common geological disaster in mountainous areas. It is a special torrent that carries a large amount of solid materials such as sediment, stones and boulders produced on valleys or hillsides by precipitation such as heavy rain, glaciers, and snow melting water; [0005] Debris flow retaining structures: structures or structures used to retain debris flows, such as retaining dams, grid dams, etc. [0...

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Problems solved by technology

[0008] As mentioned above, the current debris flow blocking technology mostly adopts the gravity blocking structure, which mainly has the following four shortcomings and problems: ① The debris flow blocking structure based on the gravity structure generally has large masonry volume and many consumables, etc. Disadvantages, which may lead to high cost of debris flow control; ②Limited by geography, terrain and traffic conditions, the current debris flow blocking technology is often difficult to construct, which may lead to a long construction period for debris flow control projects, so it is practical for temporary or emergency engineering Not strong; ③ Existing debris flow prevention and control methods often have problems such as excavation of foundation pits, slopes, and large-diameter pile holes. and other secondary disasters; ④ Existing debris flow prevention and control methods, construction mostly adopts on-site pouring, generally cannot be assembled, welded, etc. on site, and most of them cannot be disassembled for recycling and reuse.

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