CN207739095U - A kind of autoroute side point band drainage system - Google Patents

Abstract

The utility model discloses a kind of autoroute side point band drainage system, the side divides band to be set between the unidirectional track two-by-two of lane highway, side point, which takes, is provided with drainage system, drainage system includes longitudinal gutter channel, vegetable layer, permeable formation, manually stores stagnant layer and metalling, longitudinal gutter channel longitudinal section is dish-like in the depth of upward opening, the both sides of longitudinal gutter channel are equipped with vegetable layer, permeable formation and manually store stagnant layer successively from the top down, the bottom of longitudinal gutter channel is metalling, and the bottom of metalling is provided with several transverse drains.The utility model fully considers existing roadbed, reduces quantities, effectively improves road surface drainage ability, is provided simultaneously with and stores stagnant function, can effectively be sustained pavement runoff discharge process.

Description

A kind of autoroute side point band drainage system

Technical field

The utility model is related to a kind of highway extension project technologies, and in particular to band is divided on a kind of autoroute side Drainage system.

Background technology

With the development of economy with the increase of the volume of traffic, need to the corresponding reorganization and expansion of the Expressway Implementing built in early days Engineering.When highway number of track-lines is 10 or more, commonly referred to as autoroute.With common two-way 4 track or 6 The spies such as lane highway is compared, and autoroute has road surface water flow big, and water discharge time is long, pavement runoff peak value is big Point.Its road surface drainage problem and thus lead to problems such as road traffic safety relatively more prominent.

It is directed to Water Drainage of Expressway problem, mostly uses median strip draining and the draining of road edge irrigation canals and ditches greatly.Changing In extension project, pavement runoff amount is caused to increase due to further increasing for width of roadway, this drains express highway pavement More stringent requirements are proposed.Currently, the setting about autoroute surface drainage does not consider Road width also It influences, current highway Drainage Design specification does not form the system that completely can refer to, needle about multilane highway road surface drainage design To the above problem, there are no specific Disposal Measures.

Utility model content

Goal of the invention：Utility model aims to solve the deficiencies in the prior art, provide a kind of multilane Highway side point band drainage system, can solve in existing Expressway Extension Project, due to the increasing in highway track Adding, which causes road surface catchment area to increase pavement runoff amount, increases, and then the problem of seriously affect express highway pavement traffic safety.

Technical solution：A kind of autoroute side of the utility model point band drainage system, which divides band to be set to vehicle Between the unidirectional track two-by-two of road highway, side point, which takes, is provided with drainage system, and the drainage system includes vertical To gutter channel, vegetable layer, permeable formation, stagnant layer and metalling are manually stored, the longitudinal direction gutter channel longitudinal section is in the depth of upward opening Dish-like, the both sides of longitudinal gutter channel are equipped with vegetable layer, permeable formation and manually store stagnant layer, longitudinal gutter channel successively from the top down Bottom be metalling, the bottom of metalling is provided with several transverse drains.

In order to which drainage system can either rationally be arranged and do not influence vehicle traveling, in the inside and outside framing roadbed of same direction point From combined type form of fracture on the basis of, in conjunction with road existing roadbed, divide band to be set between car road and truck route on side；It examines Consider the factors such as guardrail and frontier defense band draining setting construction space, while the broadband of band is divided to be 2~2.5m (such as 2m), width includes two Reserve the roads affiliated facility installation sites such as guardrail in side.

In order to increase the stability of gutter channel and the drainability of entirety, the entirety of the longitudinal direction gutter channel uses cement Concrete making, and the inner surface making of longitudinal gutter channel has modified asphalt waterproof layer (to be capable of the waterproof effect of enhancing structure in this way Fruit greatly prevents in moisture penetration to road structure), the width of longitudinal gutter channel is 38~42cm, and depth is 48~51cm, Thickness is 14~16cm, such as：The width of longitudinal gutter channel is 40cm, depth 50cm, thickness 15cm.

Cause to block to prevent foreign matter from pouring gutter channel by flow, also longitudinal flowing water rooved face is arranged at intervals with rainwater grid Son, arrangement interval reference road drain specification, should meet design drainage requirement, be used between each adjacent two rain perforaled strainer prefabricated Cement concrete slab seals.

In order to which storage unit divides pavement runoff and cuts down water flow impact pressure, the vegetable layer uses gravel making, and vegetation Layer from close to track one end to forming the inside gradient (water is contributed to flow into longitudinal gutter channel) close to longitudinal gutter channel one end, The height of outermost one end is no more than road surface elevation (such as 10cm), can prevent road pavement water from having barrier effect in this way.

It is permeated downwards in order to reinforce moisture, the permeable formation is by the excellent cultivation soil making of permeance property, infiltration The top of layer is bonded with the bottom of vegetable layer to adaptation, i.e., the inside gradient corresponding with vegetable layer is arranged at the top of permeable formation, when When the full water of lower soil is occurred to overflow, the inside gradient makes overflow moisture flow back into longitudinal gutter channel discharge, with reference to training The Penetration Signature of soil is planted, the depth of permeable formation is 15-25cm (optimal that 20cm can be used).

Slow releasing function is played for the process of osmosis to moisture, preferable water holding capacity, which can effectively be cut down, carrys out water, simultaneously Preferable water-holding capacity can provide moisture for root system of plant, be equipped between permeable formation and metalling and manually store stagnant layer, manually stored stagnant For layer using the soil making that saturation moisture content is higher and moisture holding capacity is excellent, the depth for manually storing stagnant layer is 30cm.

Metalling is deep to the section bed course of both sides road or less by the rubble making that grain size is 3-6cm, metalling.

To drain into the water collected in metalling outside road, metalling bottom is provided with several transverse drains, to ensure to make With stable and durability, transverse drain is made of high density water pipe (for example, by using polyethylene HDPE pipes or armored concrete Pipe), the interior caliber of transverse drain is more than 25cm, and the water collected is drained into outside road, gos deep into metalling on transverse drain One end port is equipped with mesh screen, can prevent in this way gravel particle block drainpipe, adjacent transverse drainpipe spacing distance according to Depending on actual conditions.

Advantageous effect：Compared with prior art, the utility model is in existing autoroute reconstruction and extension project Drainage problem, on the basis of the combined type form of fracture of same direction inside and outside framing roadbed separation, in conjunction with the original road of road Base between inside and outside width road surface adds side and divides band, and side point band drainage system is arranged.

The utility model fully considers existing roadbed, reduces quantities, is effectively improved road surface drainage ability.Meanwhile Side point utilizes effective combination of vegetation and soil with drainage system, itself has and stores stagnant function, can effectively be sustained pavement runoff row Journey is let off, while having both road landscape beautification function.

The utility model integrally uses cement concrete constructions, can shift to an earlier date prefabricated convenient for rapid construction.In addition, also having Road prevention function, setting traffic sign function, road miscellaneous function (setting overbridge bridge pier, Buried pipe, auxiliary snow removing) Deng.

In conclusion the side point band Drainage System Construction in the utility model is at low cost, drainage effect is notable.

Description of the drawings

Fig. 1 is the overall structure sectional schematic diagram of the utility model；

Fig. 2 is the integral arrangement vertical view of the utility model.

Specific implementation mode

Technical solutions of the utility model are described in detail below, but the scope of protection of the utility model is not limited to The embodiment.

As depicted in figs. 1 and 2, a kind of autoroute side of the utility model point band drainage system, which divides band It is set between the unidirectional track two-by-two of lane highway, side point, which takes, is provided with drainage system, drainage system packet It includes longitudinal gutter channel, vegetable layer, permeable formation, manually store stagnant layer and metalling, longitudinal gutter channel longitudinal section is in the depth of upward opening Dish-like, the both sides of longitudinal gutter channel are equipped with vegetable layer, permeable formation and manually store stagnant layer, longitudinal gutter channel successively from the top down Bottom be metalling, the bottom of metalling is provided with several transverse drains.

The width of above-mentioned longitudinal direction gutter channel is 38~42cm, and depth is 48~51cm, and thickness is 14~16cm.Actually answering In this, longitudinal gutter channel size should meet design drainage requirement, store stagnant function to play draining, it is proposed that depth 50cm considers While dividing bandwidth limited, it is proposed that it is 40cm to take width, while to ensure the stability and durability of gutter channel itself, it is proposed that thickness For 15cm.

Section is arranged for specific side point band drainage system, needs to be calculated according to actual conditions, determines that inlet for stom water is arranged Spacing arranges spacing with transverse drain.

Implementation principle：Investigate existing roadbed, road surface drainage principal mode and its behaviour in service, soil money along consideration Source, drainage system situation.In comprehensive road surface drainage system design aspect, collateral security subgrade stability and soil erosion and to the greatest extent is reduced Amount is reduced on setting out along the angle that thread environment influences, and fully considers the actual conditions of engineering construction and the particular/special requirement of environment, right Side point band drainage system is designed.

According to《Highway drainage design specification》Related content carries out water force.It is as follows to calculate selected basic parameter：

(1) road surface drainage width：L

(2) water outlet spacing：l

(3) road surface longitudinal slope：iz；

(4) road surface horizontal slope：ih；

(7) the bituminous paving coefficient of roughness：n；

(8) gutter channel size:a*b*c

(9) return period：a；Rainfall duration：t；

(10) rainfall intensity：q；

(11) design runoff amount：Q1

(12) transverse drain discharge opening spacing is calculated：

1 transverse drain discharging capacity computational chart of table

(13) rectangular flow sink water force：

2 side of table point band rectangle gutter channel computational chart

It is computed, while dividing the sluicing energy that the discharging capacity of the dish-like longitudinal gutter channel of the depth of band depends primarily on transverse drain Power.If transverse drain use Φ=30cm reinforced concrete pipe, inlet for stom water arrange spacing 66.2m, transverse drainage pipe according to When full packages stream calculation, it is 60 meters that spacing, which is arranged, in transverse drain；When according to semicanal stream calculation, it is 30 meters that spacing, which is arranged, in water outlet. When using the drainaging scheme of rectangle gutter channel+Φ 30cm transverse drains for construction embankment Duan Bianfen bands, between transverse drain Away from 40 meters, it is correspondingly arranged with trackside side slope drain tank.

It can be seen from above-described embodiment that the utility model is certain, reduces quantities, effectively improve road surface drainage energy Power has and preferably stores stagnant function, can effectively be sustained pavement runoff discharge process, construction cost is low, and drainage effect is notable.

Claims (9)

1. a kind of autoroute side point band drainage system, which divides band to be set to the unidirectional of lane highway Two-by-two between track, side point, which takes, is provided with drainage system, it is characterised in that：The drainage system includes longitudinal gutter channel, plants Tegillum, permeable formation manually store stagnant layer and metalling, and the longitudinal direction gutter channel longitudinal section is dish-like in the depth of upward opening, Zong Xiangliu The both sides of sink are equipped with vegetable layer, permeable formation and manually store stagnant layer successively from the top down, and the bottom of longitudinal gutter channel is broken The bottom of rock layers, metalling is provided with several transverse drains.

2. autoroute side according to claim 1 point band drainage system, it is characterised in that：While band is divided to be set to Between car road and truck route, while the broadband of band is divided to be 2~2.5m.

3. autoroute side according to claim 1 point band drainage system, it is characterised in that：The longitudinal direction flowing water The entirety of slot uses cement concrete making, and the upper surface making of longitudinal gutter channel has modified asphalt waterproof layer, longitudinal flowing water The width of slot is 38~42cm, and depth is 48~51cm, and thickness is 14~16cm.

4. autoroute side according to claim 1 point band drainage system, it is characterised in that：The longitudinal direction flowing water Rooved face is arranged at intervals with rain perforaled strainer, is sealed using pre-cast concrete concrete slab between each adjacent two rain perforaled strainer.

5. autoroute side according to claim 1 point band drainage system, it is characterised in that：The vegetable layer is adopted With gravel making, and vegetable layer forms the inside gradient, outermost from close to track one end to close to longitudinal gutter channel one end The height of one end is no more than road surface elevation.

6. autoroute side according to claim 1 point band drainage system, it is characterised in that：The permeable formation by The excellent cultivation soil making of permeance property, the top of permeable formation are bonded with the bottom of vegetable layer to adaptation, i.e., at the top of permeable formation The depth of the setting inside gradient corresponding with vegetable layer, permeable formation is 15-25cm.

7. autoroute side according to claim 1 point band drainage system, it is characterised in that：It is described manually store it is stagnant The depth of layer is 30cm.

8. autoroute side according to claim 1 point band drainage system, it is characterised in that：Metalling is by grain size For the rubble making of 3-6cm, metalling is deep to the section bed course of both sides road or less.

9. autoroute side according to claim 1 point band drainage system, it is characterised in that：The transverse drainage Pipe is made of high density water pipe, and the interior caliber of transverse drain should be greater than 25cm, to prevent gravel particle from blocking transverse drain, One end port for going deep into metalling on transverse drain is equipped with mesh screen.