Steel cable net gabion structure body weir dam burst danger elimination and flood control system and application

Abstract

The invention discloses a steel cable net gabion structure body weir dam burst danger elimination and flood control system and application. According to the steel cable net gabion structure body weir dam burst danger elimination and flood control system, a steel cable net gabion structure body is used for adjusting the downstream flood peak flow before / in weir dam burst, the structure body is of a segmented strip-shaped structure, a barrel-shaped steel cable net is filled with rock blocks, openings are bundled in the two ends, and bundling and segmented forming are achieved; and before / in burst, the structure body is placed on the dam top faces on the two sides of a flow discharging groove in the direction of a river channel / channel. The system is the delay intervention concept of manual intervention and adjustment of the flood peak flow, the flood amount in the middle and later periods of burst can be effectively adjusted, and the efficiency of the whole burst danger elimination scheme is improved. The invention further provides application of the steel cable net gabion structure body weir dam burst danger elimination and flood control system and a design method of main parameters of the structure body. The structure body is formed by filling of iron pocket rock blocks, even though the structure body is not recycled in the later period, the influence degree on the environment is extremely low, and the structure body is superior to an existing reinforced concrete product.

Description

technical field [0001] The invention relates to a technology for prevention and control of secondary geological disasters, in particular to a technology for prevention and emergency response to barrier dam collapse, and belongs to the technical fields of emergency prevention and control of natural disasters and emergency flood prevention. Background technique [0002] Barrier lake is a common secondary geological disaster that occurs in mountainous areas. A barrier lake is a natural lake formed mainly by landslides, collapses, etc. caused by earthquakes, heavy rainfall and other factors to block the river channel. The blockage of the channel by the barrier lake not only causes the upstream backwater to be submerged, but also the flood caused by the collapse often exceeds the downstream protection capacity. , causing great harm to the downstream. [0003] Judging from many cases of emergency disposal of barrier lakes, a prominent problem in the process of risk elimination is...

AI Technical Summary

Problems solved by technology

In disaster relief, the time cost is still not low, and it is difficult to meet the timeliness requirements of emergency rescue

At the same time, due to the safety considerations of construction personnel, the requirements for on-site assembly and use limit the wide application of products in the collapse site, and there is a "paradox" that the more urgent the site is, the less it is possible to assemble the product and put it into use

2. Product processing materials cannot effectively meet the general principle of local materials for emergency supplies, and the on-site scheduling configuration of various processing materials further increases time costs

If the number of prepared prefabricated parts is insufficient and the processing time of concrete structural parts cannot meet the requirements of the rescue site, it cannot be replenished in time

3. The method of using the product is to place it in series at the overflow section of the barrier dam. Due to the interaction between downcut erosion and trace erosion during the collapse process, the artificial structure will enter the discharge process prematurely, hindering the initial discharge efficiency, and it is difficult to improve initial discharge efficiency

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