CN106087648B - A kind of special Quick drainage of urban road and irrigation system - Google Patents

Abstract

The invention discloses a special rapid drainage system for urban roads, which belongs to the technical field of urban road drainage and rainwater utilization. Along both sides of the road motorway, a water collecting side ditch is arranged under the flat teeth of the road, and a gap cover is covered on the water collecting side ditch Dredging wells are set up every five to six meters along the water-collecting side ditch, and the water-collecting side ditch is connected with the dredging well to deposit initial rainwater; cover the dredging well cover on the top of the dredging well; One side of the dredging wells is provided with seepage storage tanks one by one, and the seepage storage tanks are arranged in the road side zone; The collection nozzle at the junction is provided with a waste intercepting basket; overflow outlets are provided every 30 meters on the side ditch of the water collection. The special rapid drainage system for urban roads of the present invention can realize rapid drainage of rainwater runoff on urban roads without any change to the existing road structure, and has the characteristics of low construction cost and guaranteed urban road structure safety.

Description

A special rapid drainage and irrigation system for urban roads

technical field

The invention belongs to the technical field of urban road drainage and rainwater utilization, and in particular relates to a special rapid drainage and irrigation system for urban roads.

technical background

In recent years, road ponding caused by heavy rainfall has been a chronic disease that affects pedestrian travel and even endangers urban traffic safety. It is common in cities in my country; as an important part of urban underlying surfaces, asphalt concrete is mostly used for existing urban road surfaces Or cement concrete and other impermeable pavements have the characteristics of fast production and confluence. When short-duration heavy rainfall occurs, water accumulation is prone to occur, causing waterlogging disasters in the urban road system.

The existing urban roads are mainly collected by point-type stormwater outlets, and then quickly discharged to the municipal sewage system through pipes and rainwater wells. The design idea is mainly "concentrated at the end and quickly discharged". The existing road drainage system has the limitations of low rainwater collection efficiency, high correlation between system elements, and great influence of road longitudinal slope while solving the basic road drainage needs.

Especially for the existing urban roads in urban built-up areas, in order to cope with the threat of water accumulation and waterlogging, the traditional reconstruction method is often to increase the diameter of drainage pipes, which requires secondary excavation of the roads, which has long construction period, high consumption of manpower and material resources, and Disturbing residents, affecting normal traffic flow and other deficiencies. How to realize the rapid improvement of urban road drainage capacity without changing the existing urban road structure and minimally interfering with citizens' life has become a key problem to be solved in the field of urban road drainage.

Contents of the invention

Purpose of the invention: The purpose of the present invention is to provide a special rapid drainage and irrigation system for urban roads, which can collect rainwater on the side of the road and store and infiltrate under the sidewalk while solving the road drainage, so as to supplement the irrigation water for road green spaces.

Technical solution: In order to achieve the above-mentioned purpose of the invention, the present invention adopts the following technical solutions:

A special rapid drainage and irrigation system for urban roads. Urban roads include road motor vehicle lanes, road side zoning and road flat teeth. Cover the gap cover plate on the top, and set up dredging wells every five to six meters along the water-collecting side ditch. The top is covered with the dredging well cover; one side of each of the dredging wells is provided with seepage storage tanks one by one, and the seepage storage tanks are arranged in the side zone of the road; Connected by oblique collection pipes, the mouth of the collection pipe connected to the dredging well is provided with a waste basket; overflow ports are provided every 30 meters on the side ditch of the water collection.

The overflow outlets are six circular overflow holes arranged side by side.

The gap cover is a rectangular cover, and grooves with a depth of 20mm and a length of 200mm are respectively opened on both short sides of the gap cover. The rainwater flows into the catchment gutter through the prismatic gap.

The water-collecting side ditch is a U-shaped ditch with an outer diameter of 900mm, a width of 300mm, and a depth of 350mm, and the wall thickness of the water-collecting side ditch is 50mm; the thickness of the gap cover plate is 120mm, the length is 900mm, and the width is 300mm; 50mm wide right-angle slots are formed on both long sides of the gap cover plate.

The longitudinal overlap of the water-collecting side ditch adopts a tongue-and-groove design, and the bottom of the water-collecting side ditch is longitudinally spliced with a convex groove of 40mm protruding outward, and the other side of the splicing groove is concaved inward of 40mm, forming a tongue-and-groove.

The depth of the dredging well is 650mm, the width is 300mm, the length is 900mm, and the wall thickness is 50mm; the thickness of the dredging well cover is 120mm, the length is 900mm, and the width is 300mm. There are three rows and five vertical holes on the top, a total of fifteen round holes with a diameter of 50mm.

The collection pipe is a plastic pipe with an inner diameter of 100 mm, and the collection pipe is 200 mm away from the bottom of the dredging well.

The dirt intercepting basket is a hemispherical PE hanging basket, and a cross-shaped hook is arranged at the hanging basket of the dirt intercepting basket, which is convenient for hooking and cleaning.

The overflow port is externally connected to the municipal rainwater pipe through the overflow pipe, and the overflow port is 20 mm away from the upper mouth of the water collection side ditch, and the overflow pipe is a plastic pipe with a diameter of 40 mm.

The water-collecting side ditches, gap cover plates, dredging wells, dredging well cover plates and seepage storage tanks are made of concrete.

Working principle: After the rainwater falls on the road surface, it collects to the water collection side ditch on both sides through the urban road cross slope, and then flows into the water collection side ditch through the specially designed gap cover ditch to realize the preliminary collection of road surface runoff rainwater. Set up a dredging well every five to six meters below the side ditch to collect the sediment and silt from the initial rainwater collection. The dredging well cover is covered above the dredging well, and the cover can be opened daily to clean the dredging well. Silt, overhaul. Set up the sewage intercepting basket and the rainwater nozzle on the side of the dredging well, and the rainwater after precipitation is transported to the rainwater collection and utilization device in the middle of the road, the side belt and the sidewalk green belt through the sewage intercepting basket and the rainwater pipe, so as to realize the natural collection and infiltration of rainwater on the road surface and exploit. An overflow port is set every 30 meters on the side ditch of the water collection. The overflow port is provided with six circular overflow holes side by side. The overflow pipe can be directly placed in the overflow hole and connected to the municipal rainwater pipe. When the rainwater runoff collected in the side ditch exceeds the design standard, the excess rainwater can be discharged to the urban municipal rainwater pipe network through the overflow pipe to ensure the safety of the entire system.

Beneficial effects: Compared with the prior art, the present invention provides a special rapid drainage and irrigation system for urban roads, which has the following advantages: (1) The system can realize urban road rainwater runoff without making any changes to the existing road structure The rapid drainage has the characteristics of low construction cost and ensuring the safety of urban road structure; (2) The existing municipal drainage method is mainly based on rainwater point collection, and the rapid drainage and irrigation system uses dense equidistant gap cover plates to disperse and quickly collect the road surface (3) The system is less affected by the longitudinal slope of the road, and it can still effectively disperse and collect rainwater even in areas with large longitudinal slopes of the road; (4) It can be independent from the existing urban road drainage system. Interference, does not change the layout of the existing urban road drainage system, and is fully compatible with the existing drainage system; (5) During the renovation and construction, it will not disturb the residents, does not need to close the road, and will not affect normal traffic; (6) Effectively eliminate the surface of the road surface The generation of runoff prevents water accumulation and waterlogging on the road, and reduces the burden on downstream drainage.

Description of drawings

Figure 1 is a cross-sectional view of the water collection ditch

Fig. 2 is a sectional view of the dredging well;

Fig. 3 is the arrangement diagram of the dirt intercepting basket;

Fig. 4 is a plan view of the cover plate of the water collecting side ditch gap and the cover plate of the dredging well;

Fig. 5 is a side view of a common catchment ditch;

Fig. 6 is a side view of the water-collecting gutter with an overflow port.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1-6, the reference signs are: water collecting side ditch 1, gap cover plate 2, dredging well 3, dredging well cover plate 4, collecting pipe 5, sewage intercepting basket 6, seepage storage tank 7, overflow Orifice 8, overflow hole 9, overflow pipe 10, road motor vehicle lane 11, road side sub-belt 12, road flat tooth 13, gap cover prismatic gap 14, splicing convex groove 15 and splicing groove 16, wherein the road Side sub-belts 12 and road flat teeth 13 are existing facilities on urban roads.

The water-collecting side ditch 1 is arranged under the road flat teeth 13 on both sides of the road motorway 11, the gap cover plate 2 is covered on the water-collecting side ditch 1, and the seepage water storage tank 7 is arranged in the side zone 12 of the road; along the water-collecting side Ditch 1 is provided with dredging wells 3 every five to six meters to deposit initial rainwater. The dredging well cover 4 is covered on the top of the dredging well 3, and the dredging well cover 4 can be opened daily to clean the dredging well 3 and infiltration and storage. Water tank 7 carries out dredging, overhaul, seepage storage tank 7 and dredging well 3 one-to-one corresponding setting. The water-collecting gutter 1 is connected to the seepage storage tank 7 through oblique collection pipes 5 respectively, and the mouth of the collection pipe 5 at the junction with the dredging well 3 is provided with a dirt intercepting basket 6 . Overflow outlets 8 are arranged every 30 meters on the side ditch of the water collection, and the overflow outlets 8 are provided with six circular overflow holes 9 side by side.

The rainwater in the motorway 11 of the road flows into the water collecting side ditch 1 through the cross slope of the road surface through the gap cover plate 2, and after being deposited in the dredging well 3 and filtered by the collection pipe 5 and the sewage basket 6, it is collected through the collection pipe 5 Seep in the water storage tank 7, and then directly infiltrate into the soil around the sidewalk 12 of the road and sidewalk trees, and play the role of irrigating green vegetation and conserving groundwater. In case of heavy rain exceeding the 30-year standard, the excessive rainwater can be led to the municipal rainwater pipe through the overflow pipe for discharge.

The gap cover plate 2 is made of concrete, and the gap cover plate 2 is a rectangular cover plate. There are grooves with a depth of 20mm and a length of 200mm respectively on the two short sides of the gap cover plate 2. When two adjacent gap cover plates 2 are spliced , the grooves of the adjacent gap cover plates 2 are butted to form a prismatic gap 14 with a width of 40mm. Rainwater flows into the water collection side ditch 1 through the prismatic gap 14. The area is greater than the passing area required for rainwater discharge during the 30-year rainstorm return period.

The catchment ditch 1 is made of concrete. Generally, the curb width of the current urban road is 300mm, and the wall thickness of the concrete U-shaped ditch is 50mm. In order not to cause disturbance to the existing road surface, the net width of the catchment ditch 1 is taken as 200mm.

The catchment side ditch 1 is designed as a U-shaped ditch with an outer diameter of 900 mm, a width of 300 mm, and a depth of 350 mm. 300mm; both long sides of the gap cover plate 2 are provided with 50mm wide right-angle grooves, and the gap cover plate 2 can be directly placed on the water collecting side ditch 1 ditch body during construction. The water-collecting side ditch 1 is arranged along the flat teeth 13 of the road outside the motorway. The longitudinal overlap of the ditch body adopts a tongue-and-groove design. The bottom of the water-collecting side ditch 1 is spliced with a convex groove 15 protruding 40mm on one side, and the other side is spliced into a groove 16. Concave 40mm, form tongue and groove, the splicing between adjacent catchment gutters 1 is convenient and has good airtightness during construction.

The dredging well 3 is made of concrete, the depth of the dredging well 3 is 650mm, the width is 300mm, the length is 900mm, and the wall thickness is 50mm. Manhole cover 4. The dredging well cover plate 4 is made of concrete, with a thickness of 120mm, a length of 900mm, and a width of 300mm. There are three rows and five vertical holes on the dredging well cover plate 4, and a total of fifteen circular holes with a diameter of 50mm can collect rainwater and The position of the dredging well 3 is indicated to facilitate dredging and maintenance.

The collecting pipe 5 is a plastic pipe with an inner diameter of 100mm, which connects the dredging well 3 and the seepage storage tank 7, and the collecting pipe 5 is 200mm away from the bottom of the dredging well 3. As shown in Figure 3(a), the dirt intercepting basket 6 is installed on the collection pipe 5 connected to the water collecting side ditch 1, which can intercept the sundries in the rainwater and make the sundries enter the dredging well; as shown in Figure 3(b ), the dirt intercepting basket 6 is a hemispherical PE hanging basket, and the dirt intercepting basket 6 hanging basket mouth is provided with a cross-shaped hook, which is convenient for hooking and cleaning. The seepage storage tank 7 is made of concrete, and its volume can meet the requirement of 90% annual total runoff control rate of the sponge city.

The overflow pipe 10 is a plastic pipe with a diameter of 40mm, which connects the overflow port 8 on the water-collecting side ditch 1 with the municipal rainwater pipe. The overflow port 8 is 20mm away from the upper mouth of the water-collecting side ditch 1. The water level of the rainwater rises to the position of the overflow pipe 10 in the water collecting side ditch 1. In the event of a heavy rain exceeding the 30-year standard, after the seepage storage tank 7 is full of rainwater, the excessive rainwater will be led to the municipal rainwater pipe through the overflow pipe 10 for discharge .

Working process: The rainwater in the road motorway 11 flows into the water collecting side ditch 1 through the cross slope of the road surface through the gap cover plate 2, and the receiving header 5 on the dredging well 3 can filter the sundries in the rainwater and keep the sundries in the interception. In the dirt basket 6, after the precipitation of the dredging well 3 and the filtration of the dirt basket 6 by the collection pipe 5, the preliminary purified rainwater flows into the infiltration storage tank 7 through the collection pipe 5, and the rainwater passes through the cross slope of the road motorway 11 The gap cover plate 2 merges into the water collecting side ditch 1, and then merges into the seepage water storage tank 7 through the collecting pipe 5, and directly penetrates into the soil of the side zone 12 of the road and the soil around the trees on the sidewalk, so as to irrigate green vegetation and conserve The role of groundwater.

Claims (7)

1. a kind of special Quick drainage system of urban road, urban road includes road automobile road (11), road side divides band And the flat tooth of road (13) (12), it is characterised in that：Along road automobile road (11) both sides, collection is set below the flat tooth of road (13) Waterside ditch (1), gap cover plate (2) is covered on the gutter that catchments (1), gutter (1) sets desilting well every five to six meters along catchmenting (3), the described gutter that catchments (1) is connected with desilting well (3), to precipitate early-stage rainwater；In the upper of described desilting well (3) Side's covering desilting manhole cover plate (4)；Setting is corresponded in each described desilting well (3) side and oozes water tank (7), oozes water tank (7) it is arranged in road side point band (12)；Desilting well (3) and ooze between water tank (7) respectively by oblique collecting pipe (5) even Connect, be provided with collecting pipe (5) mouth of desilting well (3) joint and cut dirty basket (6)；Every 30 meters on the described gutter that catchments (1) Overfall (8) is set；Described gap cover plate (2) is rectangle cover plate, and in gap, the short side of cover plate (2) two is respectively provided with depth and is 20mm, length are 200mm groove, and adjacent two pieces of gap cover plates (2) dock the prismatic gap to form that width is 40mm when splicing (14), rainwater imports the gutter (1) that catchments by prismatic gap (14)；Described overfall (8) passes through overflow pipe (10) external city Political affairs rain pipe, described overfall (8) distance set waterside ditch (1) 20mm suitable for reading, overflow pipe (10) are caliber 40mm plastic tubes；Institute The gutter that catchments (1) stated, gap cover plate (2), desilting well (3), desilting manhole cover plate (4) and to ooze water tank (7) be concrete material.

2. the special Quick drainage system of urban road according to claim 1, it is characterised in that：Described overfall (8) For six circular spout holes (9) are arranged side by side.

3. the special Quick drainage system of urban road according to claim 1, it is characterised in that：The described gutter that catchments (1) it is outer diameter length is 900mm, width 300mm, depth are 350mm U-shaped ditch, the gutter that catchments (1) wall thickness 50mm；It is described Gap cover plate (2) thickness be 120mm, length 900mm, width 300mm；In two long sides of described gap cover plate (2) It is provided with the wide trough with straight angle of 50mm.

4. the special Quick drainage system of urban road according to claim 3, it is characterised in that：The described gutter that catchments (1) longitudinal lap joint of ditch body is designed using tongue and groove, and tongue (15) evagination 40mm is spliced in the gutter that catchments (1) bottom longitudinal direction side, another Groove (16) indent 40mm is spliced in side, forms tongue and groove.

5. the special Quick drainage system of urban road according to claim 1, it is characterised in that：Described desilting well (3) Depth is 650mm, width 300mm, length 900, wall thickness 50mm；Described desilting manhole cover plate (4) thickness be 120mm, Length is 900mm, width 300mm, and it is vertical to be provided with three rows five on described desilting manhole cover plate (4), totally ten five it is a diameter of 50mm circular hole.

6. the special Quick drainage system of urban road according to claim 1, it is characterised in that：Described collecting pipe (5) For internal diameter 100mm plastic tubes, collecting pipe (5) is apart from desilting well (3) shaft bottom 200mm.

7. the special Quick drainage system of urban road according to claim 1, it is characterised in that：Described cuts dirty basket (6) For hemispherical PE Hanging Baskets, cut dirty basket (6) Hanging Basket mouth and set cross hook, facilitate hook to take cleaning.