Background technology
Inlet for stom water refers to the facility that the pipe drainage system compiles surface water; Be a kind of structure of on rainwater pipe duct or interflow pipe duct, collecting rainwater; Generally form by well body, connecting branch and rain grid made; Road, meadow, square, even the rain water on roof of some buildings flows into river or lake through connecting branch at first through rain grid made remittance well body.It is that rainwater gets into the underground inlet in city; It is the critical facility of collecting ground rainwater; The rainwater that falls the sky directly is sent to the passage of urban rivers and lakes water system, is the bottleneck that the urban sewerage and drainage piping compiles rainfall runoff, is again the primary channel that the urban non-point source pollution thing gets into water environment.So it both can be the urban water-body moisturizing again for urban road drains flooded fields.
In the prior art, inlet for stom water has been widely used in the drainage workss such as sub-district, road, greening as a kind of rain-water drainage structure.But along with development of city, on the one hand the exploitation of the underground space is more and more, and the earthing of basement roof top becomes the ponding layer, generally looks for the slope, buries way such as drainage blind pipe underground and get rid of the rainwater in the earthing through top board, and operation is more, and is cumbersome; On the other hand, impermeable materials such as pitch, granite are often adopted on road, square, and the rainwater on the face of land generally enters rivers through urban rainwater drainage system, and underground water can't obtain effectively additional.
Summary of the invention
The problem that the purpose of the utility model can't obtain replenishing for underground water in the ponding problem that solves prior art basement roof earthing and the exterior components through inlet for stom water; Provide a kind of simple in structure, a kind of dankness type concrete storm-water drainage structure that cost of manufacture is low.
The utility model can reach through following technical scheme:
A kind of dankness type concrete storm-water drainage structure; Comprise stress frame, well body, connecting branch and rain grid made; Connecting branch is arranged on the bottom of well body, and rain grid made is arranged at the top of well body, and its design feature is: the sidewall of said well body is made up of the pervious concrete body of wall; Four angles at well body top are distributed with reinforced concrete post, are connected to form the Rectangular Concrete frame construction through lintel between the said reinforced concrete post; Said reinforced concrete post is fixedly connected with stress frame through the chain bar.
The utility model can also reach through following technical scheme:
A kind of embodiment that realizes the utility model is: said stress frame can be made up of steel concrete.
A kind of embodiment that realizes the utility model is: said well body bottom can be made up of pea gravel concrete.
A kind of embodiment that realizes the utility model is: said rain grid made can be provided with 1 or 2 or 3.
A kind of embodiment that realizes the utility model is: said reinforced concrete post can connect as one through the sidewall of cement mortar and well body, said cement mortar match ratio be 1:2.
A kind of embodiment that realizes the utility model is: said pervious concrete can be processed through adopting aggregate, cement, water, stabilizing agent, intensive and mixed with polymers to stir.
The utlity model has following outstanding beneficial effect:
1, the utility model both can be collected the rainwater the earthing from the sidewall of inlet for stom water, also can replenish underground water from the peritropous soil of the sidewall of inlet for stom water.Greenery patches and outdoor needs that structure can be used for basement roof top earthing replenish phreatic zone; Above basement roof, use the rainwater to get rid of in the basement roof earthing in the greenery patches of earthing and substitute the way of drainage blind pipe; When use in zones such as outdoor road; Because surface course is generally impermeable material; The road surface rainwater that uses this structure to collect can replenish underground water by peritropous effectively soil, and inlet for stom water also has enough bearing capacities can satisfy the requirement that people and Che pass through.
2, the utility model is simple in structure, and cost of manufacture is low, only need improve getting final product on the basis of existing technology, is convenient to extensive popularization.
The specific embodiment
Specific embodiment 1:
Fig. 1, Fig. 2 and Fig. 3 constitute the specific embodiment 1 of the utility model.
With reference to Fig. 1; Present embodiment comprises stress frame 1; Be provided with well body 2, connecting branch 3 and rain grid made 4 at stress frame 1, connecting branch 3 is arranged on the bottom of well body 2, and rain grid made 4 is arranged at the center of top of well body 2; Four angles at well body 2 tops are distributed with reinforced concrete post 21, are connected to form the Rectangular Concrete frame construction through lintel 22 between the said reinforced concrete post 21; Said reinforced concrete post 21 is fixedly connected with stress frame 1 through chain bar 5; The sidewall 23 of said well body 2 is made up of the pervious concrete body of wall.
In the present embodiment, said stress frame 1 is made up of steel concrete, and strength grade of concrete is C20; Said well body 2 bottoms are made up of pea gravel concrete; The quantity of said rain grid made 4 is one; Said reinforced concrete post 21 connects as one through the sidewall 23 of cement mortar and well body 2, said cement mortar match ratio be 1:2 (being the proportioning of cement and sandstone material).Said pervious concrete can be processed through adopting aggregate hard materials such as (for example) stones, cement, water, stabilizing agent (conventional stabilizing agent), intensive (conventional intensive) to mix stirring with polymer (conventional polymeric material), and the strength grade of pervious concrete is C20.
The preparation method of present embodiment: at first, build the stress frame 1 of inlet for stom water, strength grade of concrete C20 with steel concrete; Secondly, build the sidewall of inlet for stom water, the strength grade C20 of pervious concrete with pervious concrete; Once more, build the well seat walling crib of inlet for stom water, and mix up the setting height(from bottom) of rain grid made; At last, the cast iron rain grid made is installed.
The utility model has strengthened pervious function because the sidewall of well body is made up of the pervious concrete wall, makes that in actual use underground water obtains effectively replenishing.When the utility model uses, can get rid of the rainwater in the earthing in the basement roof earthing; When in outdoor rainwater engineering, using, the rain penetration that can ground be collected is to soil.
Specific embodiment 2:
The characteristics of present embodiment are: pervious concrete is by the borehole wall of building inlet for stom water of Fig. 1.Pervious concrete can be bought by finished product, can also adopt aggregate, cement, water, stabilizing agent, intensive and polymer scene to mix system.The quality of pervious concrete is an important step of the present invention, no matter is that finished product is bought or system is mixed at the scene, and the technical indicator of pervious concrete requires below must satisfying:
(1) surface layer effect: require the surface layer color even, do not have obvious aberration.
(2) 50 times freeze thawing resistance meets national GBJ82-85 " Standard for test methods of longterm performance and durability of ordinary concrete " examination criteria, and (matter amount loss rate ≦ 5%, loss of strength rate ≦ 25%) is also provided return on qualification by one-level detection department of provinces and cities.
(3) compressive strength meets national GB/T50081-2002 examination criteria, and this project demand reaches more than the 25MPa, and provides return on qualification by one-level detection department of provinces and cities.
(4) rupture strength meets national GB/T50081-2002 examination criteria, requires to reach more than 3.0 MPa, and provides return on qualification by one-level detection department of provinces and cities.
(5) permeability rate meets industry JC/T945-2005 examination criteria, coefficient of permeability 2.7-4.5mm/s, and provide return on qualification by one-level detection department of provinces and cities.
(6) acidproof rain corrosive nature meets local construction project quality examination center WL08-01 examination criteria, durability 10 years, and provide return on qualification by one-level detection department of provinces and cities.
All the other are with specific embodiment 1.
Other specific embodiments:
The principal character of other specific embodiments of the utility model is: the quantity of said rain grid made 4 is two or three, forms the inlet for stom water structure of two grates 4 or three grates 4, can further promote the ability and the pervious function of land drainage.All the other are with specific embodiment 1.
Among each embodiment of the utility model, the stress frame of steel concrete can be prefabricated at the precasting yard on factory or next door, building site, directly lifts when in actual engineering, using.Can not influence the carrying out of other operations, speed up the work and improve the efficient of construction.Pervious concrete product and the stress frame of buying finished product are prefabricated at the precasting yard on factory or next door, building site together, directly lift when in actual engineering, using.Can not influence the carrying out of other operations, speed up the work and improve the efficient of construction.2~3 pervious concrete inlets for stom water are installed are continuously formed two grates or three comb pervious concrete inlets for stom water, further promote the ability of land drainage and the water permeability of pervious concrete inlet for stom water.
Need to prove; The above is merely the best specific embodiment of the utility model; But the protection domain of the utility model is not limited thereto, and any technical scheme and utility model design thereof according to the utility model is equal to replacement or change, all belongs to the protection domain of the utility model.