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Multi-stage self-collapsing soil flood diversion dam protected by geosynthetics

A geosynthetic material, self-bursting technology, applied in dikes, dams, water conservancy projects, etc., can solve problems such as the inability of dykes to resist excessive floods, the lack of reservoir auxiliary dam flood diversion and the spillway disaster prevention and mitigation design theory, etc., to reduce property Losses, ensuring safety, and the effect of huge social benefits

Active Publication Date: 2017-06-16
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Theoretically, the limited quantified flood standard cannot solve the problem of engineering water damage caused by unlimited super-standard floods; embankments with earth-rock structures cannot resist super-standard floods
At present, there is also a lack of disaster prevention and mitigation design theory for auxiliary dam flood diversion of reservoirs and controllable flood diversion of special spillways

Method used

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  • Multi-stage self-collapsing soil flood diversion dam protected by geosynthetics
  • Multi-stage self-collapsing soil flood diversion dam protected by geosynthetics
  • Multi-stage self-collapsing soil flood diversion dam protected by geosynthetics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Embodiment 1: Multi-stage self-bursting soil flood diversion dam protected by geosynthetic material, its composition includes: geosynthetic material protection multi-stage self-breaking soil dike 10, soil overflowing soil dam 1, automatic water level gauge 3, slope protection 2, Trash rack 5, soil protection layer 9, non-woven block stone Haiman 14, combined with figure 1 , 2 illustrate,

[0067] A slope protection 2 is set in the upstream anti-scour range of the soil-quality over-water dam 1 to undertake flood diversion and scour prevention,

[0068] An automatic water level gauge 3 is laid on the upstream slope of the soil overwater dam 1, which plays the role of early warning and diversion of floods.

[0069] A platform 4 is set at the upstream end of the soil water-passing dam 1,

[0070] The weir top of the soil water-passing dam 1 is connected to the trapezoidal weir surface geosynthetic material protective surface 6-1 to control flood diversion and anti-scour,...

Embodiment 2

[0100] The multi-stage self-bursting soil flood diversion dam protected by the geosynthetic material described in Example 1, the soil water-passing dam (1), the multi-stage self-breaking soil dike protected by the geosynthetic material (10), the rope-tie non-woven fabric wearing belt ( 16) All are designed in accordance with the dam disaster prevention and mitigation design theory. The dam disaster prevention and mitigation design theory is: on the basis of the existing design theories and specifications, the disaster prevention and mitigation design is added according to the mechanism of flood discharge beach water damage, so as to avoid catastrophic dyke failure and dam surge. The farmland that undertakes flood diversion is regarded as flood discharge floodland, and it uses its mechanism to encounter irresistible excess floods to the floodland and farmland in a controllable and scattered flood; The flood-discharged flatland water damage mechanism is: the evolution process of ...

Embodiment 3

[0102] Embodiment 1 The bottom width B of the trapezoidal protective surface 6-1 of geosynthetics is calculated by the following formula;

[0103]

[0104]

[0105] In the formula: B——is the bottom width B of the geosynthetic trapezoidal protective surface 6-1, m; Q——is the flood diversion flow at the flood point, m3 / s; η——the width coefficient of the geosynthetic trapezoidal protective surface 6-1, m—— is the flow coefficient of the geosynthetic trapezoidal face covering 6-1; σ—— is the submergence coefficient of the geosynthetic trapezoidal face 6-1; ε—— is the side shrinkage coefficient of the geosynthetic trapezoidal face 6-1; g —— is the acceleration of gravity, m2 / s; H 0 —— is the water head above the weir of the geosynthetic trapezoidal face covering 6-1 including the traveling velocity head, m, H —— is the head above the weir of the geosynthetic trapezoidal face 6-1, m, v 0 - is the traveling velocity head.

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Abstract

Disclosed is a multistage self-bursting soil flood diversion dam protected through geosynthetic materials. According to the multistage self-bursting soil flood diversion dam protected through the geosynthetic materials, a slope protection (2) is arranged within the upstream scouring protection range of a soil water passing dam (1), and an automatic water level indicator (3) is arranged on an upstream slope of the soil water passing dam (1); a platform (4) is laid at the upstream end of the soil water passing dam (1), and the weir crest of the soil water passing dam (1) is connected with a trapezoidal weir surface geosynthetic material protection surface (6-1); a downstream slope of the soil water passing dam (1) is connected with a trapezoidal discharge chute geosynthetic material protection surface (6-2); a rope-tied non-woven fabric threading fixing foot (8) is arranged at the bottom of a downstream slope foot of the soil water passing dam (1); and a fixing body I (7-1) is arranged at the bottom of the upstream end of the trapezoidal weir surface geosynthetic material protection surface (6-1), and a fixing body II (7-2) is arranged at the bottom of the downstream end of the trapezoidal weir surface geosynthetic material protection surface (6-1). The multistage self-bursting soil flood diversion dam is used for flood diversion of the soil dam.

Description

[0001] Technical field: [0002] The invention belongs to the technical field of dam flood diversion and conservancy engineering, and relates to a multi-level self-bursting soil flood diversion dam protected by geosynthetic materials. [0003] Background technique: [0004] In 2013, there was a flood beyond the standard in Heilongjiang that manpower could not resist. Under the existing water conservancy regulations and technical conditions, it is very difficult to realize the flood control plan of "ensure the safety of flood fighting and rescue troops" and the safety of dams. The innovative method to achieve this goal also solves the worldwide problem of the over-the-top flood of dams breaking down and causing damage to people and property. [0005] Difficulties faced by dams that exceed standard floods: When rivers and dams are generally up to standard, floodwaters will flow into the river, increasing the probability of downstream floods, increasing the height of the dam, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B3/10
CPCE02B3/10E02B3/106Y02A10/11
Inventor 叶兴胡兰东叶坤郑喜财生化君韩梅郝群
Owner HEILONGJIANG UNIV
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