CN206503213U - Scattered collection mating type waterproof and water drainage system for highway median strip - Google Patents

Scattered collection mating type waterproof and water drainage system for highway median strip Download PDF

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Publication number
CN206503213U
CN206503213U CN201720170943.8U CN201720170943U CN206503213U CN 206503213 U CN206503213 U CN 206503213U CN 201720170943 U CN201720170943 U CN 201720170943U CN 206503213 U CN206503213 U CN 206503213U
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China
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drainage
longitudinal direction
drainage channel
median strip
water
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CN201720170943.8U
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殷爱国
王英
刘建伟
李二伟
桂文才
朱卫威
徐旭升
邢闯锋
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Survey and Design Research Institute of China Railway Seventh Group Co Ltd
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Survey and Design Research Institute of China Railway Seventh Group Co Ltd
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Abstract

The utility model discloses a kind of scattered collection mating type waterproof and water drainage system for highway median strip, including drainage channel on the longitudinal direction excavated by central strip bandwidth, the recessed groove to be formed of building by laying bricks or stones in the center portion thereof position constitutes the lower drainage channel in longitudinal direction, in the vertical, the side wall of lower drainage channel and bottom wall surface be equipped with the geomembrane that intercepts water;Drainage channel bottom is embedded with longitudinal aqueduct with inlet opening, longitudinal direction in drainage channel covered with the permeable ground with vegetation under longitudinal direction of the inside filled with rubble;The transverse drainage passage being mutually connected with longitudinal aqueduct is arranged at intervals with below the roadbed of runway over/under;Geological stratification below transverse drainage passage is spaced intermediate provided with the transverse drainage culvert being connected with drainage pipeline networks on the outside of upper and lower runway, and the upper end for the sump that bottom is connected with transverse drainage culvert extends to the permeable ground covered on the upper drainage channel in longitudinal direction.The utility model is simple in construction, can meet the guarded drainage demand of more than 8 meters median strips.

Description

Scattered collection mating type waterproof and water drainage system for highway median strip
Technical field
The utility model is related to drainage system, anti-more particularly, to a kind of scattered collection mating type for highway median strip Drainage system.
Background technology
For the highway with one fixed width(Including urban road and highway), in up runway and descending driving It is required for setting the median strip of one fixed width between road, main function is isolation two-way traffic, buries communication pipe, installed Glare screen etc..The road table water of surface water, lower infiltration and superelevation section side in median strip, typically passes through center point Every the pumping equipment discharge with itself.The width of the selected Main Basiss median strip of median strip drainage pattern and surface Whether there is and pave to determine:1)It is narrow for median strip(< 3m)And surface is when paving, set in median strip to The horizontal slope rolled outside both sides, without separately setting pumping equipment;2)It is narrow for median strip(< 3m)But surface Wu Pu During block, longitudinal drainage sewer can be set, and passes through transverse drain every a segment distance in the surface water penetrated into for excretion in dividing strip By outside the water discharge path in sewer;3)For wider median strip, by setting the cross fall of introversion to make surface current Drained to the middle gutter of median strip, and by longitudinal slope in discharge opening or transverse drainage culvert.
Conventional ripe drainage pattern is divided into convex, spill and closed three types at present:
1st, convex:1)During surface-closed, using cast-in-place thin layer cement concrete or precast concrete fritter front cover or other Material front cover, can not set median strip underdrainage system, and the horizontal slope to two sides flare need to be only used on dividing strip paving, The surface water dropped in dividing strip is arranged to both sides runway, into pavement drainage facility.2)When surface is unclosed, in Central median palpus grass planting skin or shrub, longitudinal rubble sewer, longitudinal direction soakaway trench with holes and transverse drainage are set depending on rainfall size Pipe etc..
2nd, spill:1)During surface-closed, underground drainage facility can not be equally set, using butterfly concrete shallow ridges and sluicing Mouth discharge band internal water accumulation.2)When surface is unclosed, surface drainage facility makes surface by the directional transverse gradient of dividing strip introversion Pocket in current direction dividing strip, recycles gradient incline drainage to discharge opening or crosses in the bridges and culverts water channel on road;Arrange underground Drainage facility can be used and convex median strip identical underground drainage facility.
3rd, it is closed:Median strip surface-closed, Drainage Design is relatively easy, i.e., used on dividing strip paving to two The horizontal slope of face flare.
What above-mentioned more ripe scheme was directed to is all median strip narrower width, typically within 3 meters and rainfall The situation of moderate regional road center dividing strip.For area of heavy rainfull, there is reserved demand(As needed, later stage expansible car Road)Median strip of the width more than 8 meters draining, if be still designed according to above-mentioned technical thought, one is due to Surface area water is easily formed in median strip, if can not timely discharge rapidly, will be formed in central strip belt surface Cross flow, increases road surface drainage amount, if the non-front cover in surface, the soil in dividing strip can also be brought to road surface, cause pavement of road Pollution, influences road traffic safety;Simultaneously because rainfall is more and Relatively centralized, in order to ensure that the ponding in median strip is fast Speed discharge, it is to avoid road surface is polluted, reduces road surface drainage, reduces the generation of the phenomenons such as subgrade defect, then needs to collecting in dividing strip Pumping equipment proposes higher requirement, will certainly so cause engineering cost to greatly improve.
The content of the invention
The purpose of this utility model is a kind of scattered collection mating type waterproof and water drainage system for highway median strip of offer, To solve the problems, such as the guarded drainage of ultra-wide road center dividing strip.
To achieve the above object, the utility model can take following technical proposals:
Scattered collection mating type waterproof and water drainage system described in the utility model for highway median strip, including it is long along road Spend direction and design draining on drainage channel on the longitudinal direction that centre is low, both sides are high that width is excavated, the longitudinal direction by median strip The recessed groove to be formed of building by laying bricks or stones in the centre of passage constitutes longitudinal direction lower drainage channel, drainage channel and longitudinal direction on the longitudinal direction The side wall and bottom wall surface of lower drainage channel are equipped with the geomembrane that intercepts water;Drainage channel under the longitudinal direction of the inside filled with rubble Bottom be embedded with longitudinal aqueduct with inlet opening, the longitudinal direction in drainage channel covered with the permeable soil with vegetation Layer;It is arranged at intervals with and leads to the transverse drainage that longitudinal aqueduct is mutually connected below the roadbed in up-run lane or descending track Road;Geological stratification below the transverse drainage passage is spaced intermediate to be provided with and the drainpipe on the outside of descending track and up-run lane The transverse drainage culvert that net is connected, the upper end for the sump that bottom is connected with the transverse drainage culvert extends to described indulge The permeable ground covered on upward drainage channel.
Multiple tracks is arranged at intervals with the middle part of the permeable ground on 10 ~ 15cm low compared with both sides, the permeable ground at the middle part horizontal To the bank that blocks water, adjacent two laterally block water the distance between bank for 50 meters.
The distance of adjacent two sump is 1km or so, and during actual setting, spacing can depending on topographic features and dewatering needs Carry out local directed complete set, interior headroom size > 1m × 1m of each sump.
The transverse drainage passage includes inverted trapezoidal groove and the PVC drain pipe being embedded in the inverted trapezoidal groove, Multiple A-frames are arranged at intervals with below the PVC drain pipe, the medium coarse sand being filled in the inverted trapezoidal groove will be described PVC drain pipe is coated wherein, forms protection outer layer.
Caliber >=15cm of the PVC drain pipe, the PVC drain pipe outer surface is apart from the side of inverted trapezoidal groove two And the distance on base is more than 5cm, distance of the PVC drain pipe outer surface apart from the inverted trapezoidal groove groove top is more than 15cm.
The cell wall gradient of the inverted trapezoidal groove is 1:0.1
The utility model has the advantage of simple in construction, the guarded drainage of median strip of the width more than 8 meters can be met Demand, while cost is reduced, has focused on environmental protection, realizes engineering construction and natural harmony;The present invention is anti-simultaneously The design of drainage system does not interfere with the construction for extending road in the later stage.
During the median strip waterproof and water drainage system work of the utility model design, the rainwater emission path in median strip Mainly in two kinds of situation:One when being that rainwater is larger, mainly passes through A(Earth's surface laterally dissipates row)、B(Vertical sump, transverse drainage are contained Concentrate discharge)、C(Under be seeped into the lower drainage system in longitudinal direction and concentrate discharge)Three kinds of modes are discharged;Two when being that rainwater is smaller, mainly passes through B(Vertical sump, transverse drainage, which are contained, concentrates discharge)、C(Under be seeped into the lower drainage system in longitudinal direction and concentrate discharge)Two kinds of modes are discharged.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is Fig. 1 overlooking the structure diagram.
Fig. 3 is the section amplification figure of transverse drainage passage 9 in Fig. 1.
Embodiment
As shown in Figure 1, 2, the scattered collection mating type waterproof and water drainage system of the present utility model for highway median strip, including Drainage channel 1 on the longitudinal direction that centre is low, both sides are high that width is excavated is designed by median strip along link length direction, in longitudinal direction Covered with the permeable ground 3 with vegetation 2 in upper drainage channel 1, on longitudinal direction, the centre of drainage channel 1 is recessed builds by laying bricks or stones to be formed Groove constitute the lower drainage channel 4 in longitudinal direction(Generally, the width of the lower drainage channel 2 in longitudinal direction is 0.35 ~ 0.55 meter, deep Spend for 0.3 ~ 0.5 meter), the infiltration under water in the range of the upper drainage channel 1 in longitudinal direction is guided to the lower drainage channel 4 in longitudinal direction and arranged Go out, it is possible to reduce the disease of roadbed;The side wall of the lower drainage channel 4 of drainage channel 1 and longitudinal direction and bottom wall surface laying in the vertical Intercept water geomembrane 5, and the geomembrane 5 that intercepts water can play what is collected in the lower drainage channel 4 of the upper drainage channel 1 in barrier longitudinal direction and longitudinal direction Infiltration is impregnated with to roadbed;The bottom of drainage channel 4 is embedded with longitudinal aqueduct 6 with inlet opening under longitudinal direction, to avoid Silt in permeable ground 3 blocks inlet opening, has been filled with the rubble of percolation inside drainage channel 4 under longitudinal direction;In The descending track 7 of central median side(Or up-run lane 8)Roadbed below be arranged at intervals with and be mutually connected with longitudinal direction aqueduct 6 Transverse drainage passage 9, under normal circumstances, the distance of adjacent two transverse drainages passage is 50m or so, the transverse drainage passage 9 with Drainage pipeline networks on the outside of road is connected;It can be offered with at interval of 1 kilometer in the geological stratification below transverse drainage passage 9 The transverse drainage culvert 10 that runway 7 is connected with the drainage pipeline networks in the outside of up-run lane 8, bottom and the phase of transverse drainage culvert 10 The upper end of the sump 11 of connection extends to the permeable ground 3 covered on the upper drainage channel 1 in longitudinal direction, the drainage channel 4 under longitudinally During by sump 11, its bottom should be met and be no less than 50cm higher than sump 11;To ensure the permeable effect of sump 11, The interior headroom size of sump 11 is not less than 1m × 1m.
To reduce pollution during draining to existing road surface, the middle part of permeable ground 3 10 ~ 15cm low compared with both sides or so(Road is horizontal Taken large values when slope is big)Form groove type structure;In the vertical one is set on the permeable ground at the middle part of drainage channel 1 at interval of 50 meters Road laterally blocks water bank 12, to slow down current washing away to greenbelt vegetation 2, while also having the function of preformed precipitate, to reduce to collection The blocking of well 11.
As shown in figure 3, to avoid subgrade deformation from impacting transverse drainage passage, transverse drainage passage 9 of the invention PVC drain pipe 9.2 including inverted trapezoidal groove 9.1 and the caliber >=15cm being embedded in inverted trapezoidal groove 9.1, PVC drainings The lower section of pipe 9.2 is arranged at intervals with multiple A-frames 9.3(A-frame 9.3 uses special bar material, is spaced 1 meter of setting One), the medium coarse sand being filled in inverted trapezoidal groove 9.1 by PVC drain pipe 9.2 coat wherein, formed protection outer layer 9.4.
During construction, horizontal grooving is carried out to the roadbed after grinding compacting(Inverted trapezoidal can be cut out using Small Universal groover Groove 9.1, manually carries out auxiliary finishing to bottom land and cell wall, meets construction precision requirement);According to the distance at 1 meter of interval from one Hold to the other end and lay A-frame 9.3, it is ensured that lay firm;PVC drain pipe 9.2, operation are placed on A-frame 9.3 Prevent native stone from falling in grooving in journey, native stone should be cleaned out in time if any dropping, now the outer surface of PVC drain pipe 9.2 away from It is more than 5cm with a distance from 9.1 liang from inverted trapezoidal groove sides and base, the outer surface of PVC drain pipe 9.2 is apart from inverted trapezoidal groove 9.1 The distance on groove top is more than 15cm;Then medium coarse sand is backfilled around PVC drain pipe 9.2, medium coarse sand slowly should symmetrically be backfilled, prevented PVC drain pipe 9.2 floats, and is manually made firm by ramming using drill rod closely knit, finally forms a closely knit stabilization PVC drain pipe 9.2 is outer Flexible protective outer layer 9.4, the differential settlement of roadbed can be well adapted to, evade subgrade deformation to the broken of PVC drain pipe 9.2 It is bad.
The cell wall gradient of inverted trapezoidal groove 9.1 is set to 1 by the utility model:0.1, cell wall stress is outwardly directed inclined Under squeezed state, stress is conducive to the stabilization of grooving cell wall, pre-buried PVC drain pipe 9.2 played and preferably protected Effect.
Scattered collection mating type waterproof and water drainage system of the present utility model is mainly used in the median strip that width is more than 8 meters, its Drainage channel 1 on middle longitudinal direction, longitudinal direction lower drainage channel 4, sump 11, intercept water geomembrane 5 and transverse drainage culvert 10 is constituted With oozing, the longitudinal direction of the function such as leading, cut, arranging concentrate exhaust system;In the rainwater concentrations period, it is allowed to pass through up driving The surfaces such as road, descending runway and median strip laterally discharge rainwater, and the transverse direction for foring rainwater dissipates heat-extraction system.
Rainwash water is come together in sump 11 in drainage channel 1 on longitudinal direction, is exported by transverse drainage culvert 10, is indulged The lower infiltration collected in downward drainage channel 4 can be discharged by sump 11 and the two ways of transverse drainage passage 9.

Claims (6)

1. a kind of scattered collection mating type waterproof and water drainage system for highway median strip, it is characterised in that:Including along link length Draining on drainage channel on the longitudinal direction that centre is low, both sides are high that width is excavated, the longitudinal direction is designed by median strip and is led in direction The recessed groove to be formed of building by laying bricks or stones in the centre in road constitutes the lower drainage channel in longitudinal direction, on the longitudinal direction under drainage channel and longitudinal direction The side wall and bottom wall surface of drainage channel are equipped with the geomembrane that intercepts water;Drainage channel under the longitudinal direction of the inside filled with rubble Bottom is embedded with longitudinal aqueduct with inlet opening, the longitudinal direction in drainage channel covered with the permeable soil with vegetation Layer;It is arranged at intervals with and leads to the transverse drainage that longitudinal aqueduct is mutually connected below the roadbed in up-run lane or descending track Road;Geological stratification below the transverse drainage passage is spaced intermediate to be provided with and the drainpipe on the outside of descending track and up-run lane The transverse drainage culvert that net is connected, the upper end for the sump that bottom is connected with the transverse drainage culvert extends to described indulge The permeable ground covered on upward drainage channel.
2. the scattered collection mating type waterproof and water drainage system according to claim 1 for highway median strip, it is characterised in that: Multiple tracks is arranged at intervals with the middle part of the permeable ground on 10 ~ 15cm low compared with both sides, the permeable ground at the middle part laterally to block water bank, Adjacent two laterally block water the distance between bank for 50 meters.
3. the scattered collection mating type waterproof and water drainage system according to claim 1 or 2 for highway median strip, its feature exists In:The distance of adjacent two sump is 1km, interior headroom size > 1m × 1m of each sump.
4. the scattered collection mating type waterproof and water drainage system according to claim 1 or 2 for highway median strip, its feature exists In:The transverse drainage passage includes inverted trapezoidal groove and the PVC drain pipe being embedded in the inverted trapezoidal groove, described Multiple A-frames are arranged at intervals with below PVC drain pipe, the medium coarse sand being filled in the inverted trapezoidal groove arranges the PVC Water pipe is coated wherein, forms protection outer layer.
5. the scattered collection mating type waterproof and water drainage system according to claim 4 for highway median strip, it is characterised in that: Caliber >=15cm of the PVC drain pipe, the PVC drain pipe outer surface is apart from the side of inverted trapezoidal groove two and base Distance is more than 5cm, and distance of the PVC drain pipe outer surface apart from the inverted trapezoidal groove groove top is more than 15cm.
6. the scattered collection mating type waterproof and water drainage system according to claim 4 for highway median strip, it is characterised in that: The cell wall gradient of the inverted trapezoidal groove is 1:0.1.
CN201720170943.8U 2017-02-24 2017-02-24 Scattered collection mating type waterproof and water drainage system for highway median strip Active CN206503213U (en)

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CN201720170943.8U CN206503213U (en) 2017-02-24 2017-02-24 Scattered collection mating type waterproof and water drainage system for highway median strip

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106759778A (en) * 2017-02-24 2017-05-31 中铁七局集团有限公司勘测设计院 For the scattered collection mating type waterproof and water drainage system of highway median strip
CN107841959A (en) * 2017-11-06 2018-03-27 山西正道工程技术咨询有限公司 The construction method of highway high filling section discharge culvert

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106759778A (en) * 2017-02-24 2017-05-31 中铁七局集团有限公司勘测设计院 For the scattered collection mating type waterproof and water drainage system of highway median strip
CN107841959A (en) * 2017-11-06 2018-03-27 山西正道工程技术咨询有限公司 The construction method of highway high filling section discharge culvert
CN107841959B (en) * 2017-11-06 2019-08-23 山西正道工程技术咨询有限公司 The construction method of highway high filling section discharge culvert

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Address after: No. 1225, nautical East Road, Henan economic and Technological Development Zone, Zhengzhou, Henan

Patentee after: China Railway seven Bureau Limited Company Limited company survey and Design Research Institute

Address before: No. 1225, nautical East Road, Henan economic and Technological Development Zone, Zhengzhou, Henan

Patentee before: Survey and Design Institute of China Railway seven Bureau Group Co., Ltd.

CP01 Change in the name or title of a patent holder