Self-resetting energy-consuming barrier structure and implementation method for extra-large and high-level debris flow

Abstract

The invention belongs to the safety technical field of geological disaster prevention and control, and relates to an especially-big high-altitude debris flow self-resetting energy-consuming blocking structure. The especially-big high-altitude debris flow self-resetting energy-consuming blocking structure is characterized by comprising first-row reinforced concrete separated pile structures on the debris flow upstream incidence and attack face, namely front end arc piles (1-1) and tail rectangular piles (1-2), second-row reinforced concrete rectangular piles (2) and a reinforced concrete raft foundation (4); the first-row rectangular piles (1-2) are connected through first connecting beams (3-1), the first-row rectangular piles (1-2) are connected to a maintain body through second connecting beams (3-2), in addition, the second connecting beams (3-2) need to be fixedly embedded into the maintain body by 1.5-2 m; the first-row rectangular piles (1-2) and the second-row rectangular piles (2) are connected through third connecting beams (3-3), and the second-row rectangular piles (2) are connected through fourth connecting beams. The energy consuming and vibration reducing capacity of the structure is improved, and the service life of the structure is prolonged. The anti-collision resetting capacity of the structure is improved so that deformation can be completely reset within the range of 20-30 cm.

Description

technical field [0001] The invention relates to a mud-rock flow blocking engineering technology, in particular to a self-resetting energy-consuming blocking structure for an extra-large high-level debris flow and an implementation method thereof. Background technique [0002] At present, the more mainstream structural forms in extremely high-level debris flow blocking projects are gravity dams, grid dams, pile forest dams, pile beam dams, etc. Among them, pile forest and pile beam dams have the advantages of separating water and rocks and resisting the impact of large rocks , Has been successfully applied in Sanyanyugou and Luojiayugou in Zhouqu, Gansu, Wenjiagou in Qingping, Sichuan, Lengmugou in Baoxing and other large debris flow control projects. [0003] Due to the huge impact force of large rocks in extremely large high-level debris flows, the cross-sectional area of ​​structures in extremely large high-level debris flow blocking projects generally needs to be designed...

AI Technical Summary

Problems solved by technology

High-level debris flow ditches are relatively developed in the mountainous areas of western my country. If the retaining structure cannot sustain the impact of large rocks in the debris flow for a long time, large-scale high-level and high-speed debris flows will easily form, destroy downstream houses, block downstream rivers, and cause great harm.

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