CN-116290268-B - Construction method of urban street ecological open channel system

CN116290268BCN 116290268 BCN116290268 BCN 116290268BCN-116290268-B

Abstract

The invention provides a construction method of an ecological open channel system of a city street, which comprises the steps of constructing a sediment filtering system, constructing a rainwater and sewage diversion system, constructing a water resource collection system and the like. The invention can achieve multiple effects of reducing urban waterlogging, improving urban microclimate, improving urban landscapes and the like.

Inventors

LI SANMAO
LI SIZE
ZHANG FANGWEI
Yan Lite
HE YI
ZHOU GUANGHUI
FAN XIAOYE
HUANG FENG
TAN HONGSHENG
KONG WEITAO

Assignees

中建八局第三建设有限公司

Dates

Publication Date: 20260505
Application Date: 20230423

Claims (10)

1. The construction method of the urban street ecological open channel system is characterized by comprising the following steps of: s1, constructing a sediment filtration system, wherein the sediment filtration system comprises a pond and a micro-filter, a first pipe section, a second pipe section and a third pipe section are buried, then the pond is constructed, and then the micro-filter is constructed, the micro-filter is communicated with a municipal rainwater pipe network through the first pipe section, and the pond is communicated with the micro-filter through the second pipe section; S2, constructing a rainwater and sewage diversion system, namely constructing a sewage and municipal sewage pipe network of a fourth pipe section communicated with a residential area, a factory area and a business area, constructing a centralized management area for centrally managing fishes, wherein the centralized management area comprises a management room and an equipment room, constructing a sleeping area for providing a fish sleeping space, wherein the sleeping area comprises a linear ditch and an open channel, the linear ditch and the open channel are communicated with the side part through a plurality of fifth pipe sections, the outlet of the linear ditch is communicated with the pond, and the outlet of the open channel is communicated with the pond through the third pipe section; And S3, a construction water resource collection system, wherein the water resource is from a river channel, a stream, tap water and underground water, the water resource collection system comprises a nitrification tank, an outlet of the nitrification tank is communicated with an adjusting tank, an outlet of the adjusting tank is communicated with an inspection well through an ultraviolet disinfection device, an outlet of the inspection well is communicated with an inlet of the open channel, and an outlet of the adjusting tank is also communicated with a municipal rainwater pipe network.
2. The method for constructing an ecological open channel system for urban roadways according to claim 1, wherein in S1, the first pipe section, the second pipe section and the third pipe section are made of ductile cast iron pipe.
3. The construction method of the urban street ecological open channel system according to claim 1 or 2, wherein in S1, a soil compacting layer, two geotechnical cloths, a stone layer with the diameter of 60-80mm, two geotechnical cloths, a stone layer with the diameter of 20-30mm, two geotechnical cloths, a planting soil layer and an aquatic plant seed layer are sequentially arranged on the bottom wall of the pond from bottom to top, the soil compacting layer, a graded gravel layer and a reinforced concrete pond wall are sequentially arranged on the peripheral wall of the pond from top to bottom, a cement mortar layer is arranged at the outer side end of the reinforced concrete pond wall, a stainless steel net is arranged in the cement mortar layer, side granite is arranged at the inner side end of the reinforced concrete pond wall, and top granite is jointly arranged at the upper ends of the reinforced concrete pond wall and the side granite.
4. The construction method of the urban street ecological open channel system according to claim 1 or 2, wherein in the step S1, a micro-filter support is arranged at the bottom of the micro-filter, the micro-filter and the micro-filter support are arranged in a micro-filter base, and the micro-filter base is sequentially provided with a plain soil compacting layer, a graded gravel layer, a reinforced concrete base wall and a hidden well cover from bottom to top.
5. The construction method of the urban street ecological open channel system according to claim 1 or 2, wherein in S2, the management room sequentially comprises a plain concrete compacting layer, a graded broken stone layer and a first reinforced concrete wall from bottom to top, the inner side end of the first reinforced concrete wall is provided with rough sesame dust granite, the inner part of the first reinforced concrete wall is positioned at the upper end of the rough sesame dust granite, the upper end of the first reinforced concrete wall sequentially comprises a stone layer with the diameter of 60-80mm, a waterproof blanket, a stone layer with the diameter of 20-30mm and aquatic plant seeds, the first reinforced concrete wall is provided with a steel wire rolling shutter door, and the inner part of the first reinforced concrete wall is provided with a water quality sensor, a water level sensor and a data transmitter.
6. The construction method of the urban street ecological open channel system according to claim 5, wherein in S2, a plain soil compacting layer, a graded broken stone layer and a second reinforced concrete wall are sequentially arranged among the devices from bottom to top, a heater and an oxygenerator are arranged in the second reinforced concrete wall, the heater is communicated with the interior of the first reinforced concrete wall through a water inlet pipe and a water outlet pipe respectively, the oxygenerator is communicated with the interior of the first reinforced concrete wall through an air inlet pipe, the water inlet pipe and the water outlet pipe are stainless steel pipes, the air inlet pipe is a PVC pipe, and an invisible well cover is arranged at the top of the second reinforced concrete wall.
7. The construction method of the urban street ecological open channel system according to claim 1 or 2, wherein in the step S2, the linear ditch is sequentially a plain soil compacting layer, a graded gravel layer, a reinforced concrete ditch foundation, a cement mortar layer, a composite resin linear ditch and a stainless steel cover plate from bottom to top.
8. The construction method of the urban street ecological open channel system according to claim 7, wherein in the S2, the open channel sequentially comprises a plain soil compacting layer, a graded broken stone layer, a reinforced concrete bottom open channel foundation and a rough sesame ash granite channel wall from bottom to top, a cement mortar layer is arranged at the outer side end of the rough sesame ash granite channel wall, a waterproof blanket is arranged at the outer side end of the cement mortar layer, aquatic plant seeds and a water level sensor are arranged in the rough sesame ash granite channel wall, the rough sesame ash granite channel wall is communicated with the composite resin linear groove through a fifth pipe section, and the fifth pipe section is a PVC pipe.
9. The construction method of the urban street ecological open channel system according to claim 1 or 2, wherein in S3, the ultraviolet disinfection device sequentially comprises a plain soil compacting layer, a graded broken stone layer and a third reinforced concrete wall from bottom to top, a cement mortar layer is arranged at the inner side end of the third reinforced concrete wall, a case support is arranged in the third reinforced concrete wall, a case is arranged on the case support, the case is communicated with the regulating reservoir and the inspection well, an ultraviolet sterilizer is arranged in the case, the ultraviolet sterilizer is provided with a control valve, and a hidden cover plate is arranged at the top of the third reinforced concrete wall.
10. The construction method of the urban street ecological open channel system according to claim 1 or 2, wherein in the step S3, the inspection well sequentially comprises a plain soil compacting layer, a graded broken stone layer and a reinforced concrete well wall from bottom to top, and an invisible cover plate is arranged at the top of the reinforced concrete well wall.

Description

Construction method of urban street ecological open channel system Technical Field The invention relates to the field of water resource utilization, in particular to a construction method of an ecological open channel system of a city street. Background Along with the continuous progress of urban construction, by means of the promotion of urban hydraulic engineering, the construction of water scenery and urban street is combined, the management and protection of water resources are promoted, the water efficiency and the water resource utilization rate are improved, the water pollution treatment and the water environment protection are enhanced, the water resources are required to be continuously utilized, and the ecological open channel is required to be introduced into the street to create the ecological street open channel. The established urban ecological open channels have a plurality of problems, such as water source problems, open channel design problems and open channel management problems, and the phenomena of water quality deterioration, mosquito and germ breeding, bad smell generation, waterlogging, drying and the like occur. Disclosure of Invention Aiming at the prior art, the invention provides a construction method of an ecological open channel system of a city street. The invention provides a construction method of an ecological open channel system of a city street, which comprises the following steps: s1, constructing a sediment filtration system, wherein the sediment filtration system comprises a pond and a micro-filter, a first pipe section, a second pipe section and a third pipe section are buried, then the pond is constructed, and then the micro-filter is constructed, the micro-filter is communicated with a municipal rainwater pipe network through the first pipe section, and the pond is communicated with the micro-filter through the second pipe section; S2, constructing a rainwater and sewage diversion system, namely constructing a sewage and municipal sewage pipe network of a fourth pipe section communicated with a residential area, a factory area and a business area, constructing a centralized management area for centrally managing fishes, wherein the centralized management area comprises a management room and an equipment room, constructing a sleeping area for providing a fish sleeping space, wherein the sleeping area comprises a linear ditch and an open channel, the linear ditch and the open channel are communicated with the side part through a plurality of fifth pipe sections, the outlet of the linear ditch is communicated with the pond, and the outlet of the open channel is communicated with the pond through the third pipe section; And S3, a construction water resource collection system, wherein the water resource is from a river channel, a stream, tap water and underground water, the water resource collection system comprises a nitrification tank, an outlet of the nitrification tank is communicated with an adjusting tank, an outlet of the adjusting tank is communicated with an inspection well through an ultraviolet disinfection device, an outlet of the inspection well is communicated with an inlet of the open channel, and an outlet of the adjusting tank is also communicated with a municipal rainwater pipe network. Preferably, in S1, the first pipe section, the second pipe section and the third pipe section are all made of ductile cast iron pipe. Preferably, in S1, the bottom wall of the pond is sequentially provided with a plain soil compacting layer, two geotechnical cloths, a stone layer with the diameter of 60-80mm, two geotechnical cloths, a stone layer with the diameter of 20-30mm, two geotechnical cloths, a planting soil layer and an aquatic plant seed layer from bottom to top, the peripheral wall of the pond is sequentially provided with the plain soil compacting layer, a graded crushed stone layer and a reinforced concrete pond wall from top to bottom, the outer side end of the reinforced concrete pond wall is provided with a cement mortar layer, the inside of the cement mortar layer is provided with a stainless steel net, the inner side end of the reinforced concrete pond wall is provided with side granite, and the upper ends of the reinforced concrete pond wall and the side granite are jointly provided with top granite. Preferably, in S1, a micro-filter support is disposed at the bottom of the micro-filter, and the micro-filter support are disposed inside a micro-filter base, and the micro-filter base is sequentially a plain soil compacting layer, a graded gravel layer, a reinforced concrete base wall and a hidden well cover from bottom to top. Preferably, in S2, the management room is a plain soil compacting layer, a graded broken stone layer and a first reinforced concrete wall from bottom to top in sequence, a rough surface sesame gray granite is arranged at the inner side end of the first reinforced concrete wall, the first reinforced concrete wall is internally locat