Method and equipment for raising urban water-logging prevention standard and controlling water pollution

A kind of urban and standard technology, applied in the direction of waterway system, sewage discharge, water supply equipment, etc., can solve the problem of simplification of drainage facilities, achieve the effect of avoiding house demolition, avoiding repeated investment, and improving waterlogging prevention standards

Inactive Publication Date: 2014-03-26
GUANGZHOU MUNICIPAL ENG DESIGN & RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a method and equipment that can improve urban waterlogging pre

Method used

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  • Method and equipment for raising urban water-logging prevention standard and controlling water pollution

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Example Embodiment

[0016] Example 1

[0017] A certain river basin in Guangzhou, the basin area is 12.47 square kilometers, the main river channel of the basin is 4.51 kilometers, the upper reaches 2.62 kilometers covered as culverts, and the downstream 1.89 kilometers is open swell, which merges into the Pearl River from north to south. There is a combined drainage system in the basin. The confluence pipes in the basin merge into the main river, and drain water through the confluence pipe and the main river in the rainy season; there are sewage interception pipelines along the main river and sewage interception facilities at the exit of the confluence pipe. According to calculations: the current standard for water conservancy and waterlogging prevention of the main river is once in 11 years, the municipal drainage standard for confluence pipes along the line is once in 3 years, the main drainage pipeline in the basin is once in 0.5 to 1 year, and the interception pipeline along the main river is in...

Example Embodiment

[0023] Example 2

[0024] This embodiment is another design scheme of embodiment 1. Using the present invention, a deep main tunnel 2 with an inner diameter of 7.7 meters is set up 30m below the ground from north to south in the direction of the downstream river, and four connecting shafts 3 and four connecting shafts 3 are set along the line. The maximum inflow of the tunnel is 41 m3 / s, 5.2 m3 / s, 5.3 m3 / s, 26 m3 / s, and the storage capacity of the tunnel system is 106,000 cubic meters.

[0025] A pumping station 5 is set near the end of the main tunnel 2. The pumping station 5 is provided with a drainage shaft 4 connected to the main tunnel 2, an emptying pump set 7 and a flooding pump set 6. The emptying pump set 7 is installed in the drainage shaft 4 The draining pipeline 71 is connected to the main tunnel 2, and the outlet of the draining pump set 7 is near the urban sewage channel 8. The draining pump set 7 has a capacity of 1.7 m3 / s; the flood draining pump set 6 is installed ...

Example Embodiment

[0029] Example 3

[0030] This embodiment is another design scheme of embodiment 2. Using the present invention, a deep main tunnel with an inner diameter of 7.7 meters is set up 30 m below the ground from north to south in the direction of the downstream river, and four connecting shafts 3 and four connecting shafts 3 are set along the line. The maximum inflows are 23 m3 / s, 4.8 m3 / s, 4.8 m3 / s, 23 m3 / s, the tunnel system has a storage capacity of 106,000 cubic meters, an emptying pump set capacity of 1.7 m3 / s, and a flood pump set The capacity is 48 m3 / s.

[0031] Using the above-mentioned equipment to control water pollution, when the rainfall is small, the control valve 11 on the connection shaft 3 is opened, and the combined sewage exceeding the capacity of the shallow interception pipeline 1 enters the main tunnel 2 of the deep tunnel through the connection shaft 3 for regulation and storage. After the rain, the emptying pump group 7 is turned on, and the combined sewage store...

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Abstract

The invention provides a method for raising the urban water-logging prevention standard and controlling water pollution. According to the method, a deep layer tunnel system is arranged at least 30m deep under the ground in the direction of a main drainage line in a drainage basin, a plurality of connecting vertical shafts are distributed above a main tunnel, the lower ends of the connecting vertical shafts are communicated with the main tunnel, the upper ends of the connecting vertical shafts are connected with an urban shallow layer sewage intercepting pipeline, a drainage pumping station is arranged in the position close to the main tunnel and an urban downstream water channel and beside an urban sewage drainage water channel, the main tunnel and the urban sewage drainage water channel are communicated by an emptying pump unit through a pipeline, and the tunnel channel and the urban downstream water channel are communicated by a floodwater drainage pump unit through a pipeline. By the utilization of spatial and temporal distribution of rainfall, scheduling operation is performed on the deep layer tunnel system, so that the main tunnel serves as a floodwater flowing channel to raise the water-logging prevention standard of the drainage basin when rainfall is large and serves as a converging sewage storage pond to play a role in control over water pollution when rainfall is small. According to the method for raising the urban water-logging prevention standard and controlling water pollution, the main tunnel for drainage is built in underground deep layer space, house removal caused by construction of ground facilities is avoided, and investment is reduced.

Description

technical field [0001] The invention relates to a method for urban waterlogging prevention and control and water pollution control, in particular to a method capable of improving waterlogging prevention standards and effectively controlling water pollution. Background technique [0002] With the expansion of cities and the increase of construction density, the rate of ground hardening is getting higher and higher, the original reservoirs, mountains, lakes, and fish ponds are gradually being occupied, and the sections of rivers are becoming narrower and narrower. The urban surface water storage and drainage The natural purification ability is greatly weakened, and the urban heat island effect leads to frequent extreme weather. Urban flooding and waterlogging seriously threaten the life and property safety of urban residents. Waterlogging has become a difficult problem for urban water control. [0003] The extremely high population density and urban construction density make t...

Claims

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Application Information

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IPC IPC(8): E03F1/00
Inventor 隋军汪传新牛樱陈贻龙王广华周建华李文涛
Owner GUANGZHOU MUNICIPAL ENG DESIGN & RES INST CO LTD
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