Gap catchment infiltration type drainage ditch
Affiliated technical field
The present invention relates to the rainwater utilization technical field, is that a kind of square ground rainwater is collected, rainwater infiltrates the escape canal that utilizes and carry.
Background technology
Rainfall on the large tracts of land hardened grounds such as square flows into the inlet for stom water that is distributed in the square usually, drains by underground pipeline.This known drainage pattern does not have the function that rainwater is permeated the ground, and rainwater flows away in vain as a kind of resource, and because the inlet for stom water needs that catchment, the square presents the recessed district of aspect inlet for stom water.Influence the effect of the use on square.
Summary of the invention
In order to overcome the functional defect of existing square drainage system, the invention provides a kind of gap catchment infiltration type drainage ditch, rainwater can evenly be collected in this gutter on the ground line of square, when rainwater is caused the rainwater utilization place, the part rainwater permeates the ground, self-restraint underground water.
The technical scheme that the present invention solves its technical problem is: a kind of gap catchment infiltration type drainage ditch, mainly form by cover plate and gutter ditch body two parts.Two L shaped unequal angle end flangings of cover plate, upright dorsad, minor face forms gutter ditch body cover plate, and is spacing with supporting the round steel post between two unequal angles, forms a vertical water gap of wide H=150~200mm that the top is straight.Cover plate lower part and spacing angle steel weld, and are landed on the ditch body of gutter.Gutter ditch body and cover plate are all made unit block, and length is 1m, and a plurality of unit blocks are combined into a long ditch of level.Gutter ditch body is made by resin concrete, and section becomes the U font, has good hydraulics and mechanical property.Ditch body both sides, gutter are aperture area, and the perforate aperture is φ 10~15mm, percent opening 1.5~4%.Ditch body get a foothold 2 of built-in reinforcing steel bars in gutter are in order to improve ditch body bending resistance.When gap catchment infiltration type drainage ditch was buried underground, paving ground and leveling layer were pressed on the cover plate of gutter, and the side, gutter separates gutter ditch body and pervious concrete with permeable geotextiles, and the rainwater of collection is infiltrated smoothly, and intercepted outer sand inflow gutter.Concrete foundation is established in ditch body bottom, gutter.Establish macadam between original soil consolidated subsoil and pervious concrete.Form simple rainwater layer during rainfall on the square, flow in the gutter along the slit of catchmenting, the part rainwater sees through the gutter side-wall hole and permeates the ground, and unnecessary rainwater is discharged by the gutter and done recycling.
The invention has the beneficial effects as follows, lay the Large Square of gap catchment infiltration type drainage ditch, it is complete and unified to have realized that fully architectural effect and technical functionality require.The smooth no recessed district of square ground, it is attractive in appearance that the slit of catchmenting is straight.During rainfall, ground forms the very thin moisture film of one deck, and collect in the rainwater slit of being catchmented rapidly, enters the gutter, and ground is ponding not.Rainwater is when carrying discharge, and the part rainwater permeates the ground, and replenishes underground water source.Gap catchment infiltration type drainage ditch has collection, infiltration concurrently, carries multi-functional.
Description of drawings
The present invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is the vertical section constructional drawing of gap catchment infiltration type drainage ditch.
Among the figure 1, the ditch body, 2-1,2-2 cover plate, 3-1,3-2 support the round steel post, 4, spacing angle steel, 5, the furrow bank aperture area, 6, reinforcing steel bar, 7, permeable geotextiles, 8, concrete foundation, 9, pervious concrete, 10, macadam, 11, the original soil consolidated subsoil, 12, leveling layer, 13, paving ground.
The specific embodiment
In Fig. 1, gap catchment infiltration type drainage ditch, cover plate (2-1), (2-2) by support round steel post (3-1), (3-2) is spacing, vertical dorsad, forms the strip water gap, end face level, gap width H=150~200mm.Trench cover (2-1), (2-2) bottom and spacing angle steel (4) weld, and drop on the ditch body (1) ditch body (1) and trench cover (2-1), (2-2) component units assembly, long 1m.A plurality of unit blocks are combined into the long ditch of integral level.Ditch body (1) is made by resin concrete, and section becomes the U font.The furrow bank both sides are aperture area (5), and the perforate aperture is φ 10~15mm, and percent opening is 1.5~4.0%.Get a foothold (6) 2 of built-in reinforcing steel bars of ditch body.When gap catchment infiltration type drainage ditch was buried underground, paving ground (13) and leveling layer (12) were pressed on the gutter cover plate (2-1,2-2).The both sides, gutter separate ditch body (1) and pervious concrete (9) with permeable geotextiles (7).Concrete foundation (8) is established in the bottom, gutter.Establish macadam (10) between original soil consolidated subsoil (11) and the pervious concrete (9).