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Structure for connecting flood intercepting ditch and inspection well

A technology for inspection wells and flood intercepting ditches, which is applied to drainage structures, water/sludge/sewage treatment, sewage discharge, etc., can solve the problems of increased difficulty in setting up sewage lifting pump stations, unfavorable vertical stability of drainage pipes, and large ground elevation differences Large and other problems, to achieve the effect of avoiding direct entry into the river, simple structure and stable operation

Inactive Publication Date: 2019-06-21
WUXI MUNICIPAL DESIGN INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] (1) Complex terrain: urban areas generally have undulating terrain, large road slopes, and severe block divisions, often forming platforms with different elevations, and the ground elevations of each platform vary greatly; geological conditions change greatly, especially in land consolidation flats In engineering, the phenomenon of "big excavation and large filling" is very common, and the difference in the geological conditions of the site formed is quite unfavorable to the vertical stability of the drainage pipeline, and uneven settlement is prone to occur
[0004] (2) There are many pumping stations in the middle: in the planning and design of the sewage pipe network, due to the large terrain height difference, it is more difficult to set up the sewage lifting pumping station

Method used

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  • Structure for connecting flood intercepting ditch and inspection well
  • Structure for connecting flood intercepting ditch and inspection well
  • Structure for connecting flood intercepting ditch and inspection well

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as Figure 1-Figure 2 As shown, a structure connecting the flood intercepting ditch and the inspection well, including: falling water ladder 1, involute section 2, energy dissipation pool 3, grille 4, retaining wall 5, mountain slope line / sidewalk outer line 6, Connecting pipe 7, ground 8, inspection well 9. According to the engineering design requirements, the runoff of a flood intercepting ditch in a certain mountain is treated, and the treatment scale is 60L / s. The rainstorm runoff on the surface of the mountain rolls down from the mountain, first through the falling water ladder, secondly through the energy dissipation pool 3 and the grille 4, and finally through the connecting pipe 7 and discharged into the inspection well.

[0026] According to the sequence of upstream and downstream, the water drop ladder 1, the energy dissipation pool 3, the grid 4 and the connecting pipe 7 are firstly set.

[0027] The series of the falling water ladder 1 is determined a...

Embodiment 2

[0034] Such as Figure 3-Figure 4 As shown, a structure connecting the flood intercepting ditch and the inspection well, including the drop ladder 1, the involute section 2, the energy dissipation pool 3, the grille 4, the retaining wall 5, the foot line of the mountain slope / sidewalk outer line 6, the ground 8. Stilling ridge 10 and cover plate culvert 11.

[0035] According to the engineering design requirements, for the connection between the flood intercepting ditch and the slab culvert, the return period of the flood intercepting ditch is 10 years, and the treatment scale is 60L / s. Compared with Embodiment 1, this embodiment mainly cancels the connecting pipe 7 and adds the stilling ridge 10 .

[0036]According to the upstream and downstream sequence, set the drop ladder 1, the energy dissipation pool 3, and the grille 4. The drop ladder has 12 steps, the height of each step is 300mm, and the width is 150mm. The total height of the ladder is 3.6m, and the width is 1.8m....

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Abstract

The invention relates to a structure for connecting a flood intercepting ditch and an inspection well, and belongs to the field of urban drainage. The structure comprises a water falling ladder, an energy dissipation pool, a grating, a connecting pipe and the inspection well; according to the upstream and downstream sequence, the water falling ladder, the energy dissipation pool, the grating and the connecting pipe are arranged, and the water falling ladder is a gradually-opened section from top to bottom; the energy dissipation pool is located below the water falling ladder, and the grating is fixed by being inserted into a clamping groove formed in a retaining wall; the connecting pipe is in butt joint with the energy dissipation pool in a pipe bottom flat connection mode; the connectingpipe is located between the grating and the inspection well, and rainwater on the surface of a mountain firstly passes through the water falling ladder, the energy dissipation pool and the grating and finally is drained into the inspection well through the connecting pipe. According to the structure, the scouring effect of rainstorm on downstream structures is reduced, damage is reduced, and finally surface runoff on the surface of a mountain is effectively eliminated; and through the structure for connecting the flood intercepting ditch and the inspection well, rainstorm runoff formed on thesurface of a mountain is effectively intercepted, and the structure has the advantages of being simple in structure, convenient to maintain, economical, applicable and excellent in effect.

Description

technical field [0001] The invention relates to a structure connecting a flood intercepting ditch and an inspection well, belonging to the technical field of urban drainage. Background technique [0002] Drainage engineering is one of the main infrastructures of the city. Its construction is directly related to the speed of urban construction and development, the economic and environmental benefits of the service area, and plays an important role in the sustainable development of society. Due to the complex topography of mountainous towns, the slope of urban roads varies greatly, and the setting of drainage pipes is restricted by factors such as terrain, overpasses, underpasses and other structural forms and traffic safety facilities. Urban roads often experience water accumulation, which seriously affects traffic. . Therefore, it is particularly important to discuss and study the design optimization of urban drainage pipelines in mountainous areas to make them more reasona...

Claims

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Application Information

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IPC IPC(8): E03F1/00E03F5/00E03F5/02E03F5/14E03F3/04
Inventor 段腾腾
Owner WUXI MUNICIPAL DESIGN INST
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