CN206448131U - Pavement underdrain structure - Google Patents

Abstract

The utility model discloses a kind of pavement underdrain structure, aim to provide a kind of small with road pavement and roadbed disturbance, it is less prone to the pavement underdrain structure of the advantage of quality problems, its drip irrigation device is, the pavement face includes pervious concrete layer and pavement is mated formation, drainage is provided between pavement face and ground layer, drainage is mated formation to surround by the cast-in-place concrete layer in " C " font and pavement to be formed, the two ends of drainage are provided with kerbstone with holes, the cross section of kerbstone with holes is identical with the cross section of cast-in-place concrete layer, highway need not be excavated, project scale is small, difficulty of construction is low, it is smaller on driving influence, also there is the durability of the bigger cross-section of river and Geng Gao, it is not easy to be blocked by debris such as leaves, convenient later maintenance, highway and drainage are not easy quality problems occur.

Description

Pavement underdrain structure

Technical field

The utility model is related to surface drainage field, more particularly to a kind of pavement underdrain structure.

Background technology

With the raising of the current level of urbanization, the requirement for the sidewalk of two, Class III highway is also being gradually stepped up, In order to reduce the destruction of construction volume and road pavement, wide pavement can be directly spelled in the both sides on road surface, and highway is typically using unrestrained Draining or road pavement ponding is discharged by the way of gutter draining, adding pavement will make ponding cannot be introduced into side Ditch, the problem of producing draining.

Therefore people are general buries rain pipe to solve the emission problem of surface gathered water in pavement bottom.

At present, Publication No. CN202187415U Chinese patent discloses a kind of sidewalk drainage structure, and it includes people Be provided with inlet for stom water by trade plate, roadbed and kerbstone, the pavement, the roadbed is provided with water barrier, the water barrier with Drainage blanket is provided between side walk slab, the drainage blanket is connected by drainpipe with inlet for stom water.

Although this sidewalk drainage structure prevent to some extent pavement ponding infiltration roadbed and roadbed is caused Destruction, but when applying on two, Class III highway, due to highway quality preferably, cost is higher, and burying rain pipe needs pair Road surface is excavated, not only unsightly, and the disturbance of road pavement and roadbed is larger, and the later stage easily has quality problems.

Utility model content

The purpose of this utility model is to provide a kind of pavement underdrain structure, and it has road pavement and roadbed disturbance small, no Easily there is the advantage of quality problems.

Above-mentioned technical purpose of the present utility model technical scheme is that：

A kind of pavement underdrain structure, including pavement face and ground layer, the pavement face include pervious concrete layer Mat formation with pavement, drainage is provided between pavement face and ground layer, drainage is by the cast-in-place concrete layer in "U" shaped and people's row Road is mated formation around forming, and the two ends of drainage are provided with kerbstone with holes, the cross section of kerbstone with holes and the cross section phase of cast-in-place concrete layer Together.

It is arranged such, the ponding on road surface can be entered in the drainage in cast-in-place concrete layer by the hole on kerbstone with holes Discharged, relative to embedded drainpipe, such construction volume is small, and draining is more convenient, while drainage can be same with pavement When build, it is not necessary to highway is excavated, project scale is small, difficulty of construction is low, on driving influence it is smaller, due to draining tube capacity Easy-to-rust, the durability can using drainage with the bigger cross-section of river and Geng Gao, it is not easy to blocked by debris such as leaves, after Phase is easy to maintenance, and highway and drainage are not easy quality problems occur.

Further set：The kerbstone with holes is provided with discharge outlet, and the position of discharge outlet and drainage is correspondingly arranged.

It is arranged such, the ponding and rainwater of road surface can be entered in drainage by the drainage of kerbstone with holes to be carried out Collect and discharge, therefore the position of discharge outlet and drainage is correspondingly arranged, can without putting the receipts mouth of a river in runway peripheral hardware So that it is adapted collection ponding, so as to reach more preferable drainage effect.

Further set：The kerbstone opening side with holes is set towards ground layer side, and inconsistent with cast-in-place concrete layer.

It is arranged such, on the one hand the effect of kerbstone with holes is to be used to discharge ponding, is on the other hand pedestrian's row for convenience Walk and effect attractive in appearance, being arranged such can not influence its drainage to be issued to more attractive effect, while it is contradicted In cast-in-place concrete layer, outside seepage when can avoid discharge outlet of the ponding in by kerbstone, so that reduce road damage can Can property.

Further set：The width in the pavement face is 150cm.

It is arranged such, the width on pavement typically takes 75cm to 100cm, about 800 to 1000 people of the traffic capacity/hour, by Pavement in herein is arranged on beside highway, and pedestrian's flow is larger, and also bicycle enters sometimes, therefore pavement face is wide Degree, which is arranged on 150cm, can increase its traffic capacity, prevent from causing the blocking on pavement due to the entrance of bicycle.

Further set：Pervious bed is provided between the pervious concrete layer and ground layer.

It is arranged such, due to pavement except drainage does not have other pumping equipments, therefore when precipitation is larger, people Ponding is easily remained in trade, these ponding rapidly can be discharged into the dirt bed of surrounding by the setting of pervious bed, mitigated The discharge pressure on pavement, reaches more good using effect.

Further set：The pervious bed includes medium-sand seam, the nothing that pervious concrete layer is set gradually towards ground layer Sand concrete layer and graded broken stone layer.

It is arranged such, medium-sand seam can tentatively be filtered the residue in ponding, ponding is again under non-sand concrete layer Ooze, because non-fine concrete mesopore is big, so conductivity of heat is low, and good water permeability, ponding by level by being matched somebody with somebody again after non-sand concrete layer Metalling carries out infiltration discharge.

Further set：The kerbstone with holes is embedded in pervious bed.

It is arranged such, kerbstone with holes is fluid-tight, discharge outlet and pervious bed can be prevented by being embedded in pervious bed Between produce gap, the possibility that moisture outwards permeates in reduction drainage, so as to reach more stable using effect.

Preferably, being spaced 1500cm between two adjacent drainage.

It is arranged such, the distance between two drainage are too small to make the structural instability on whole pavement, is easily formed Collapse, and the distance between two drainage are excessive draining is become difficult, thus be disposed on 1500cm compared with To be suitable.

In summary, the utility model has the advantages that：

Highway need not be excavated, project scale is small, difficulty of construction is low, smaller on driving influence, also with bigger The cross-section of river and Geng Gao durability, it is not easy to by the debris such as leaf block, convenient later maintenance, highway and drainage are not allowed Easily there are quality problems.

Brief description of the drawings

Fig. 1 is the structural representation in pavement face in embodiment 1；

Fig. 2 is the profile at A-A in embodiment 1；

Fig. 3 is the schematic diagram for being used in embodiment 1 show kerbstone with holes；

Fig. 4 is the scheme of installation of kerbstone with holes in embodiment 1.

In figure, 1, ground layer；2nd, pavement face；21st, pervious concrete layer；22nd, pavement is mated formation；3rd, drainage；4th, it is existing Pour concrete layer；5th, kerbstone with holes；51st, discharge outlet；6th, pervious bed；61st, medium-sand seam；62nd, non-sand concrete layer；63rd, graded broken stone layer.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

Embodiment 1：A kind of pavement underdrain structure, as shown in figure 1, it includes the pavement face 2 extended from left to right, people The lower section of trade face 2 is placed equidistant the drainage 3 for discharging surface gathered water, and the upper and lower ends of drainage 3 are pavement face 2 Marginal position, which is provided with the ponding on kerbstone 5 with holes, road surface, to be entered by kerbstone 5 with holes in drainage 3, then from draining Discharged in road 3, the width in pavement face 2 is 150cm, and the width of pavement face 2 than standard is bigger, can increase whole The traffic capacity on pavement.

As shown in Fig. 2 the underface in pavement face 2 is cast-in-place concrete layer 4, cast-in-place concrete layer 4 is set in "U" shaped, and by Concreting is formed, and opening is left in its generally rectangle, centre, constitutes the drainage 3 of discharge ponding, drainage 3 it is transversal Face is rectangle, and the width of drainage 3 is larger, and the cross-section of river is big, it is not easy to blocked by debris such as leaves, and operating personnel safeguard more It is convenient, and cast-in-place concrete layer 4, by concreting, durability is higher.

As shown in Fig. 2 the top of cast-in-place concrete layer 4, which is pavement, mats formation 22, pavement mat formation 22 width and cast-in-place concrete layer 4 Width it is identical, so can by the top seal of drainage 3, pavement mat formation 22 both sides be pervious concrete layer 21, thoroughly Pervious bed 6 is provided between water coagulation soil layer 21 and ground layer 1, pervious bed 6 includes three parts, thick in being from top to bottom followed successively by Layer of sand 61, non-sand concrete layer 62 and graded broken stone layer 63.

As shown in Fig. 2 the thickness of medium-sand seam 61 is minimum, it is 3cm, next to that non-sand concrete layer 62, thickness is 10cm, thickness Maximum is graded broken stone layer 63, and its thickness is except passing through the row of drainage 3 on 20cm, road surface with the ponding on pavement face 2 Put outer, moreover it is possible to permeated downwards by pervious concrete layer 21, infiltration discharge is gradually then carried out by pervious bed 6.

As shown in figure 3, kerbstone 5 with holes generally rectangle, intermediate position is provided with discharge outlet 51, the size of discharge outlet 51 Size with drainage 3 is identical, and when kerbstone 5 with holes is arranged in pavement, referring to Fig. 4, the width of kerbstone 5 with holes is big In the width of cast-in-place concrete layer 4, Open Side Down sets for discharge outlet 51, and floor height is identical with the bottom surface of drainage 3, kerbstone with holes 5 left and right sides is embedded in the pervious bed 6 on both sides, can so avoid ponding in drainage 3 to exosmosis.

The above embodiments are only to explain of the present utility model, and it is not to limitation of the present utility model, ability Field technique personnel can make the modification without creative contribution to the present embodiment as needed after this specification is read, but As long as all being protected in right of the present utility model by Patent Law.

Claims (8)

1. a kind of pavement underdrain structure, including pavement face（2）And ground layer（1）, it is characterised in that：The pavement face （2）Including pervious concrete layer（21）Mat formation with pavement（22）, pavement face（2）With ground layer（1）Between be provided with drainage （3）, drainage（3）By the cast-in-place concrete layer in "U" shaped（4）Mat formation with pavement（22）Around into drainage（3）Two ends Provided with kerbstone with holes（5）, kerbstone with holes（5）Cross section and cast-in-place concrete layer（4）Cross section it is identical.

2. pavement underdrain structure according to claim 1, it is characterised in that：The kerbstone with holes（5）It is provided with draining Mouthful（51）, discharge outlet（51）With drainage（3）Position be correspondingly arranged.

3. pavement underdrain structure according to claim 2, it is characterised in that：The kerbstone with holes（5）Be open side court To ground layer（1）Side set, and with cast-in-place concrete layer（4）It is inconsistent.

4. pavement underdrain structure according to claim 1, it is characterised in that：The pavement face（2）Width be 150cm。

5. pavement underdrain structure according to claim 1, it is characterised in that：The pervious concrete layer（21）With ground Layer（1）Between be provided with pervious bed（6）.

6. pavement underdrain structure according to claim 5, it is characterised in that：The pervious bed（6）Including permeable coagulation Soil layer（21）Towards ground layer（1）The medium-sand seam set gradually（61）, non-sand concrete layer（62）With graded broken stone layer（63）.

7. pavement underdrain structure according to claim 5, it is characterised in that：The kerbstone with holes（5）It is embedded in permeable Layer（6）It is interior.

8. pavement underdrain structure according to claim 1, it is characterised in that：Two adjacent drainage（3）It Between be spaced 1500cm.