EP0721027A1 - Entwässerungssystem für gepflasterte Strasse - Google Patents

Entwässerungssystem für gepflasterte Strasse Download PDF

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Publication number
EP0721027A1
EP0721027A1 EP95120567A EP95120567A EP0721027A1 EP 0721027 A1 EP0721027 A1 EP 0721027A1 EP 95120567 A EP95120567 A EP 95120567A EP 95120567 A EP95120567 A EP 95120567A EP 0721027 A1 EP0721027 A1 EP 0721027A1
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EP
European Patent Office
Prior art keywords
braided
road
drainage
pipe
layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP95120567A
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English (en)
French (fr)
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EP0721027B1 (de
Inventor
Isao c/o Shoseki Kakoh K.K. Sato
Yoshimitsu c/o Shoseki Kakoh K.K. Sakuma
Yoshiomi c/o Maeda Kosen Co. Ltd. Sasaki
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Showa Shell Sekiyu KK
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Showa Shell Sekiyu KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP33703494A external-priority patent/JP2813730B2/ja
Priority claimed from JP7053768A external-priority patent/JPH08226163A/ja
Application filed by Showa Shell Sekiyu KK filed Critical Showa Shell Sekiyu KK
Publication of EP0721027A1 publication Critical patent/EP0721027A1/de
Application granted granted Critical
Publication of EP0721027B1 publication Critical patent/EP0721027B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
    • E01D19/086—Drainage arrangements or devices
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F5/00—Draining the sub-base, i.e. subgrade or ground-work, e.g. embankment of roads or of the ballastway of railways or draining-off road surface or ballastway drainage by trenches, culverts, or conduits or other specially adapted means
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00—Details of pavings
    • E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
    • E01C11/224—Surface drainage of streets
    • E01C11/227—Gutters; Channels ; Roof drainage discharge ducts set in sidewalks
    • E01C11/228—Gutters for porous pavings

Definitions

  • the present invention relates to a drainage system for use with a paved surface such as a road and, more particularly, to a drainage system for draining rainwater penetrating to the base course through an asphalt layer on a road surface. Further, the present invention relates to a drainage system for use with a paved road and, more particularly, to a drainage system which prevents problems such as a drop in slip resistance, a hydroplaning phenomenon, and splashing and spray of water resulting from water floating or remaining on a road surface. Still further, the present invention relates to a secondary drainage system for use in a road bridge and, more particularly, to a secondary drainage system which prevents a drop in durability of the bridge by draining rainwater penetrating through an asphalt pavement on the surface of the bridge.
  • curbs or gutters are provided along both sides of a road, and the road is commonly surfaced with a pavement graded toward the center or the sides of the road.
  • the road is commonly surfaced with a pavement graded toward the center or the sides of the road.
  • inflow ports formed in the side of the gutter facing the pavement with regard to surface drainage, sub-surface drainage, and permeable asphalt pavement (Paragraph 2-7-2 "Surface Drainage” on page 38 in the Guidelines For Asphalt Pavement).
  • the pavement contains minute pores, and rainwater penetrates through these minute pores during rainfall.
  • the aggregate will came away from the asphalt mixture that forms the asphalt pavement, thereby resulting in the fracturing of the pavement.
  • maintenance and repair of the road are carried out by cutting the surface of the asphalt pavement laying a new asphalt mixture over the base course. Rapid drainage of the rainwater penetrating to the inside of the pavement in a simple manner has been desired.
  • the highway is surfaced with a permeable asphalt pavement in order to ensure driving safety and reduce noise.
  • this pavement is designed to permit the rainwater to penetrate through to the inside of the porous pavement so as to prevent a water slick on the road surface.
  • the rainwater passes through voids in the pavement, and the thus penetrating rainwater is drained along the top surface of the base course.
  • the voids of the pavement are filled with mud and dirt, that is, if the voids are clogged, the drainage and noise-reduction capability are impaired.
  • the mud and dirt in the voids are conventionally removed by squirting pressurized water onto the road surface and sucking the mud and dirt that float to the road surface from the inside of the pavement.
  • the installation of drains and their improved draining capability may permit the flushing of the mud and dirt. However, it is unlikely that these are sufficient means for maintaining the drainage capability of the pavement.
  • the distance of the road from which water has to be drained is increased.
  • the volume of rainwater may exceed the limit of the draining capacity of the pavement, as a result of which excess surface water arises.
  • the draining capacity of the permeable asphalt pavement depends on the porosity of the pavement. It is evident that a grater porosity leads to better water permeability which, in turn, results in improved permiability.
  • the porosity of the pavement must be to the 20% range in order to ensure the strength of the pavement.
  • an asphalt pavement is laid over the surface of a steel base or a reinforce concrete base.
  • Rainwater, or the like penetrates to the steel base or the reinforced concrete base through the asphalt pavement, so that steel or reinforcements in the base are eroded.
  • the steel base or the reinforced concrete base has a small thickness, and it is directly subject to a wheel load via the asphalt pavement. If the base is repeatedly subjected to the wheel load while it remains in a wet state as a result of the penetrated rainwater, the load capacity of the base will significantly decrease.
  • conduits are provided on both sides of the road in its longitudinal direction along the waterproof layer or a joint mixture raised straight up along the wheel guard, the curb, or the catch basin while they are in contact with an upper part of the waterproof layer.
  • the ends of the conduits are connected to outlets opened in the wall surface of an expansion joint or the side surface of the catch basin facing the pavement, whereby the rainwater remaining in the pavement is immediately drained to the outside of the bridge.
  • the outlet is covered with a wire mesh having high corrosion resistance in order to prevent the outlet from being clogged with the aggregate.
  • conduits having sufficient voids which guide only the rainwater while preventing the inflow of the aggregate without the use of the wire mesh have already been put forth.
  • a drain structure having such a conduit is disclosed in Unexamined Japanese Patent Publication Hei-6-26013.
  • the drain structure disclosed in this patent publication comprises a waterproof layer which is laid on the base of the bridge and is raised straight up at both ends thereof along the wheel guards disposed on both sides of the bridge base, and an infiltrated water guide member consisting of a spirally coiled stainless steel which is laid along the inner side surface of the corner of the raised portion of the waterproof layer.
  • the infiltrated water guide member consisting of the spiral coil is connected at given points thereof to a drainage system.
  • a pavement material is laid on the waterproof layer and the infiltrated water guide members.
  • the infiltrated water guide member acting as a drainage channel is made up of a spiral stainless steel coil.
  • This infiltrated water guide member has a lot of problems such as the difficult in laying it, reflection cracks, cost effectiveness, and problems arising when the infiltrated water guide member is cut to repair.
  • the present invention is conceived in view of the previously mentioned drawbacks in the conventional art, and its object is to provide a drainage system for use with a paved road which uses a drainage channel comprising braided pipes formed from synthetic fiber, being capable of easily draining rainwater when it is laid on the base course on the sub-base of a road, and possessing sufficient strength to support an asphalt pavement.
  • Another object of the present invention is to provide a drainage system for use with a paved road, specifically, a multi-lane road, which is capable of providing a superior drainage efficiency and of preventing surface water even if there is provided the insufficient drainage capability lead by the porosity of the pavement, a hydraulic gradient, and a drainage capability of a road area.
  • Still another object of the present invention is to solve the previously mentioned problems and to provide a secondary drainage system for use in a road bridge which is easier to lay, enables a constant intake of water, has plenty of flexibility, makes it easy to align the drainage with unevenness of catch basins, is resistant to radial pressure resistance, and can prevent the intrusion of aggregate into a conduit.
  • a drainage system for use with a paved road comprising: a braided pipe which is fabricated by weaving together a predetermined number of warps and a lot of woofs using heat resistant synthetic fiber so as to form a drainage channel; a base course of a road having its top graded; gutters longitudinally provided on both sides of the road; the drainage channel being disposed along the downstream-side end of the graded top surface of the base course and along the gutter; the drainage channel being communicated to catch basins; and the base course and the drainage channel being surfaced with asphalt miture.
  • a drainage system for use with a paved road comprising: a plurality of first braided pipes which are fabricated by weaving heat resistant synthetic fiber and are disposed on a base course of a road at predetermined intervals at an angle with respect to the longitudinal direction of the road; second braided pipes which are the same as the first braided pipes, are disposed along gutters on both sides of the road, and are connected to catch basins; a drainage channel being formed by connecting the ends of the first braided pipes with the second braided pipes; and the base course and the drainage channel being surfaced with a permiable asphalt pavement.
  • a drainage system for use with a paved road comprising: a plurality of first braided long pipes which are fabricated by weaving heat resistant synthetic fiber and are bent substantially at the center thereof; the first braided long pipes being laid on the base course of a road at predetermined intervals while their bent portions are aligned with the longitudinal center of the road and their ends are disposed at an angle to the longitudinal direction of the road; second braided pipes which are the same as the first braided long pipes and are disposed along gutters on both sides of the road for collecting water; a drainage channel which is formed by connecting the ends of the first braided long pipes with the second braided pipes; and the drainage channel and the base course being surfaced with asphalt mixture.
  • a secondary drainage system for use in a road bridge comprising: a braided pipe which is fabricated by weaving together a required number of warps and a lot of woofs using heat resistant synthetic fiber so as to form a first conduit and is laid on a waterproof layer along the expansion joint side edge of a bridge; second conduits which are the same as the first conduit and are laid on the waterproof layer of the base course of the bridge along wheel guards on both sides of the sub-base; the first conduit being connected at both ends thereof to the ends of the second conduits; the first conduit being connected to a catch basin; and the waterproof layer and the first and second conduits being surfaced with asphalt mixture.
  • a braided pipe is fabricated by weaving together a required number of warps and a lot of woofs using heat resistant synthetic fiber so as to form a drainage channel.
  • the thus fabricated drainage channel is disposed along a gutter on each side of a road and along the downstream-side and of a graded top of the base course of the road.
  • the warps woven into the braided pipe prevent the braided pipe from expanding and shrinking in its longitudinal direction. As a result, the mesh of the braided pipe will not become spread out or reduced, which permits a constant volume of water to be taken at all times.
  • the braided pipe since the braided pipe is flexible, it can follow curves of the road or unevenness and possesses radial pressure resistance. Furthermore, there is no fear of the intrusion of aggregate into the braided pipe, and the rainwater having infiltrated into the surface layer flows in the downstream direction as a result of the gradient of the top surface of the base course. In this way, only the water flows into a drainage guide pipe, thereby preventing the permeation of the rainwater into the base course. Consequently, the rainwater never remains in the pavement, which in turn prevents the fracturing of the pavement.
  • a plurality of first braided pipes which are fabricated by weaving a plenty of heat resistant synthetic fiber are laid on the base course of the road at predetermined intervals at an angle with respect to the longitudinal direction of the road.
  • These braided pipes on the base course are connected to similar second braided pipes disposed along gutters on both sides of the road, thereby forming a drainage channel.
  • the drainage channel and the base course are surfaced with asphalt mixture, and consequently the rainwater having penetrated through the road surface flows to catch basins through the first braided pipes on the base course and the second braided pipes that are disposed along the gutters of the road and are connected to the first braided pipes.
  • the rainwater having permeated through the road surface flows into the braided pipes disposed at an angle with respect to the longitudinal direction of the road when flowing over the graded top of the base course.
  • the braided pipes i.e., the drainage channel.
  • the downstream-side ends of the first braided pipes on the base course are connected to the second braided pipes that are disposed along the gutters and are communicated to the catch basins, whereby the rainwater can be effectively drained to the gutters through the catch basins.
  • the rainwater having penetrated through an asphalt pavement which acts as the bridge surface reaches to the waterproof layer laid on the base.
  • the rainwater is then drained to the outside through the conduit that in made up of the braided tubes consisting heat resistant fiber and is laid along the inner side surface of the raised portion of the waterproof layer along the wheel guards or curbs, or the conduit that is made up of the braided pipe and is disposed on the waterproof layer along the expansion joint side edge of the bridge.
  • the conduit is made up of the braided pipes which are fabricated by weaving together a required number of warps and a plenty of woofs using heat resistant synthetic fiber.
  • the warps woven into the braided pipe prevent the braided pipe from expanding and shrinking in its longitudinal direction, as a result of which a constant inflow of the rainwater can be taken at all times. Further, since the braided pipe is flexible, it can freely follow curves or unevenness and possesses radial pressure resistance. Furthermore, since the conduit is made up of the braided pipes, there is no fear of the intrusion of aggregate into the braided pipe. The rainwater having infiltrated into the asphalt pavement is guided along the waterproof layer into the braided pipe and is eventually drained to the outside.
  • a road 1 is constructed from the base course 2, and a base course 3 consisting of coarse asphalt mixtures is laid on top of the base course 2.
  • the boundary between the base course 2 and the base course 3 and the top of the base course 3 are downwardly graded from the center to both sides of the road 1 in its transverse direction.
  • These graded surfaces are made up of graded portions designated by 4, 4', 5, and 5'.
  • a top layer 6 consists of hot asphalt mixtures, and the top surface of the top layer 6, i.e., the road surface, is downwardly graded from the center to both ends of the road in its transverse direction in the same manner as the top surface of the sub-base 3. In other words, the top layer 6 has graded portions 7 and 7'. In this way, rainwater flows into gutters 8 and 8' provided on both sides of the road 1. As shown in the drawings, catch basins 9 and 9' are disposed in the gutters 8 and 8', as required.
  • a braided pipe 10 formed from heat resistant synthetic fiber is fabricated by weaving together a required number of warps 11, 11 ... (four warps in the present embodiment) and a plenty of woofs 12, 12, 12 ....
  • This synthetic fiber is required to possess heat resistance so that it will be resistant to a pavement temperature of 160 to 180 degrees Centigrade.
  • Polyester, alamide resin, and polyamide are usable as the heat resistant synthetic fiber, and the size of thread should preferably be set to 1,500 deniers to 35,000 deniers.
  • the outer diameter of the braided pipe 10 consisting of synthetic fiber should be set to 5 to 25 mm and, preferably, to 10 to 20 mm.
  • Nonwoven fabric 13 is made of the same material as the braided pipe 10, and the surface of the braided pipe 10 is sheathed with this nonwoven fabric 13, thereby forming a drainage guide pipe 14.
  • the braided pipe 10 Since the warps 11 are woven into the braided pipe 10, the braided pipe 10 is prevented from expanding and shrinking in its longitudinal direction, and the meshes of the braided pipe will not become spread out or reduced. Further, the braided pipe 10 is flexible and possesses radial strength. Furthermore, it is possible to design the size of the mesh of the braided pipe at will.
  • the drainage guide pipe 14 is temporarily fixed along the down-stream-side end of the graded top of the base course 3 and along the gutter 8 longitudinally disposed on the side of the road.
  • a conduit 16 inserted into a bore 15 formed in the side wall of the catch basin 9 facing the base course 3 is connected to the drainage guide pipe 14.
  • the hot asphalt mixtures are then laid on the drainage guide pipe 14 and the sub-base 3, thereby forming the top layer 6.
  • the drainage guide pipe 14 is made up of the braided pipes 10 consisting of synthetic fiber, and hence any portion of the drainage guide pipe 14 can permit the flow of water.
  • the drainage guide pipe 14 When being laid along the downstream-side end of the base course 3 and along the gutter 8, the drainage guide pipe 14 can easily follow curves of the road because the braided pipe 10 forming the drainage guide pipe 14 is flexible. Further, the braided pipe 10 is fabricated by weaving together the warps 11 and the woofs 12, and therefore the warps 11 prevent the braided pipe 10 from expanding and shrinking, thereby facilitating the laying of the braided pipe. In addition, if it becomes necessary to extend a drainage channel consisting of the drainage guide pipe 14, it is possible to extend the drainage channel by only butt-joining a braided pipe 10 to the drainage channel.
  • the drainage guide pipe 14 is laid and temporarily fixed on the base course 3, and, subsequently, the base course 3 is surfaced with an asphalt mixture, thereby forming the top layer 6. As a result, the drainage guide pipe 14 is fixed.
  • the braided pipe 10 forming the drainage guide pipe 14 and the nonwoven fabric 13 covering the surface of the guide pipe 14 are heat resistant and are made of material which can be resistant to a pavement temperature of, for example, 160 to 180 degrees Centigrade. For this reason, the drainage guide pipe 14 will not be damaged as a result of pavement.
  • the braided pipe 10 is cylindrically made of the synthetic fiber which has a required size, and hence it will not be deformed even when it is surfaced with the top layer 6.
  • the braided pipe 10 suitably support a required load by changing the diameter of the braided pipe.
  • the drainage channels made up of the drainage guide pipes 14 are disposed along the gutters, and it is very unlikely that a vehicle will run over the drainage channels. In the event that the drainage channels are subject to the load as previously mentioned, it is possible to maintain the drainage function of the drainage channels over a long period of time, because the braided pipe possesses pressure resistance and flexibility.
  • reference numeral 17 designates a cover of the catch basin 9 and 9'.
  • the rainwater having infiltrated through the top layer 6 flows along the graded portions 5 and 5' of the top surface of the base course 3 into the drainage guide pipes 14 that are disposed along the downstream-side ends of the graded portions on the base course 3 and along the gutters 8 and 8' and are made by sheathing the surface of the braided pipe 10 with the nonwoven fiber 13.
  • the rainwater than flows into the catch basin 9 via the conduit 16 connected thereto after having flowed through the inside of the drainage guide pipe 14.
  • the nonwoven fabric 13 provided over the surface of the drainage guide pipe 14 permits only the rainwater to enter the braided pipe 10.
  • the rainwater having infiltrated through the top surface 6 of the road can be drained to the outside through the drainage guide pipes 14 disposed at the downstream-side ends of the graded top of the base course 3 along the gutters 8. Therefore, the rainwater neither permeates through nor remains in the base course 3, thereby preventing the agregate from coming away from the asphalt mixture and preventing, in turn, fracturing of the pavement.
  • the drainage guide pipe 14 for draining the rainwater having permeated through the top layer 6, which is sheathed with the nonwoven fabric 13 in such a way as to cover the surface of the braided pipe 10.
  • the nonwoven fabric 13 becomes unnecessary depending on the size of the mash of the braided pipe 10. For example, if the mesh is small, it will be possible to prevent the intrusion of the aggregate, or the like, into the braided pipe 10 without the use of the nonwoven fabric.
  • Figs. 4 and 5 show examples in which the braided pipe 10 is used as a drainage channel 20.
  • Fig. 4 shows an example in which the end of the braided pipe 10 forming the previously mentioned drainage channel 20 is connected to the gutter 8 on one side of the road 1.
  • Fig. 5 is another similar example in which the braided pipe 10 forming the drainage channel 20 is connected to the catch basin 9 that is communicated to an L-shaped ditch 19.
  • the same reference numerals are provided to designate elements corresponding to those of the embodiment shown in Figs. 1 and 2, and these elements are the same in operation as those shown in Figs. 1 and 2.
  • the base course 3 and the top layer 6 are downwardly graded from the center to both ends of the road 1 in its transverse direction in the present embodiment. However, they may be downwardly graded from the both ends to the center separator of the road in its transverse direction.
  • the road of this embodiment is the same in construction as that of the first embodiment.
  • the same reference numerals are provided to designate corresponding elements, and an explanation will be given of solely a difference between the first and second embodiments.
  • the braided pipes 10, 10, 10... formed from synthetic fiber are disposed on the base course 3 along its longitudional sides at required intervals at an angle with respect to the longitudinal direction of the road 1.
  • the downstream-side ends of the braided pipes 10 are connected to the drainage guide pipes 14 that are disposed on both sides of the road 1 for draining the rainwater to the gutters 8 and 8'.
  • the drainage guide pipe 14 is made up of braided pipes similar to the braided piped 10.
  • the drainage guide pipes 14 are temporarily fixed along the downstream-side ends of the graded top surface of the base course 3 and along the gutters 8 and 8' so as to let the rainwater to flow into the gutters 8 and 8'.
  • the conduit 16 inserted into the bore 15 that is formed in the side wall of the catch basin 9 facing the base course 3 is connected to the drainage guide pipe 14 made of the braided pipe 10.
  • the downstream-side ends of the braided pipes 10 temporarily fixed on the graded top of the base course 3 of the road 1 at an angle with respect to the longitudional direction of the road 1 are connected to the drainage guide pipes 14, thereby forming a drainage channel.
  • the drainage channel is formed by connecting the drainage guide pipes 14 with the downstream-side ends of the braided pipes 10 temporarily fixed on the graded top of the base course 3 at an angle with respect to the longitudional direction of the road 1, and, subsequently, the top layer 6 is formed by surfacing the drainage channel and the base course 3 with an asphalt mixture.
  • the drainage channel is fixed as a result of this paving work.
  • the braided pipes 10 forming the drainage channel are made of material that is sufficiently resistant to a pavement temperature of 160 to 180 degrees Centigrade, and therefore the drainage channel will not be damaged as a result of the paving work.
  • the braided pipes 10 are cylindrically formed from synthetic fiber having a required size, they never deteriorate during the paving work.
  • the braided pipe can deflect by virtue of its mesh, and the end of another braided pipe can be easily inserted into the mesh. In consequence, it is easy to connect another braided pipe to the side of the braided pipe at right angles.
  • the rainwater having penetrated through the top layer 6 of the road 1 flows over the graded portions 5 and 5' of the base course 3 graded toward the gutters on both sides of the road 1.
  • the thus flowing rainwater enters the drainage channel on the base course 3 which is made up of the braided pipes 10, 10, 10... disposed at an angle with respect to the longitudinal direction of the road 1.
  • the rainwater having flowed into the braided pipes 10, 10, 10... further flows as a result of the gradient of the braided pipes in the downward direction and flows into the drainage guide pipe 14 that is connected to the downstream-side ends of the braided pipes 10 and is made of another braided pipes consisting of the same material as the braided pipe 10.
  • the rainwater then flows into the catch basin 9 via the conduit 16 connected to the catch basin 9 after having flowed through the inside of the drainage guide pipe 14.
  • the rainwater having penetrated through the top layer 6 of the road 1 flow into the braided pipes 10, 10, 10... disposed on the top surface of the base course 3 at an angle to the longitudinal direction of the road 1. For this reason, even if the width over which the rainwater flows is increased as in a multi-lane road, the rainwater is guided to the braided pipes and easily flows through the pipes.
  • the rainwater can be drained to the outside via the drainage guide pipe 14 that is provided at the downstream-side ends of the base course 3 and is disposed along the gutters 8 and 8'. In consequence, the rainwater neither permeates through nor remains in the base course 3, thereby preventing the aggregate from coming away from the asphalt mixture and preventing, in turn, fracturing of the pavement.
  • the surface of the braided pipe 10 may be sheathed with the nonwoven fabric 13, as required. As a result, it becomes possible to introduce only the rainwater into the braided pipe 10.
  • Figs. 8 and 9 show examples wherein the drainage channel 20 is formed from the drainage guide pipe 14 comprising braided pipes disposed along the gutter 8 and from the plurality of braided pipes 10 which are disposed on the base course 3 at an angle with respect to the longitudinal direction of the road and are connected to the drainage guide pipe 14.
  • Fig. 8 shows an example in which the end of the drainage guide pipe 14 is connected to the gutter 8 on one side of the road 1.
  • Fig. 9 is another similar example in which the drainage guide pipe 14 is connected to the catch basin 9 that is communicated to the L-shaped ditch 19.
  • the same reference numerals are provided to designate elements corresponding to those of the second embodiment shown in Figs. 6 and 7, and those elements are the same in operation as those of the second embodiment.
  • Fig. 10 shows a drainage system for use with a paved road according to a third embodiment of the present invention.
  • the braided long pipe 10 is bent substantially at its center 31, and it is disposed on the base course 3 of the road 1 while its bent portion is aligned with the longitudinal center of the road 1.
  • Legs 10a and 10b of the braided long pipe 10 are temporarily fixed on the portions of the top surface of the base course 3 that are graded toward the gutters 8 and 8' while being arranged at predetermined intervals at an angle with respect to the longitudinal direction of the road 1.
  • the downstream-side ends of the legs 10a and 10b are connected to the drainage guide pipes 14 and 14 disposed along the gutters 8 and 8'.
  • the braided pipes 10 and the drainage guide pipes 14 connected thereto are surfaced with asphalt mixture.
  • the same reference numerals are provided to designate elements corresponding to the elements of the first embodiment shown in Figs. 1 and 2, and these elements are the same in operation as those of the second embodiment.
  • Fig. 11 shows a drainage system for use with a paved road according to a fourth embodiment of the present invention.
  • the road is grooved, for example, at an angle with respect to its longitudinal direction, so that slots 22 are formed.
  • the braided pipes 10 consisting of the synthetic fiber are fitted into these slots 22.
  • the second and third embodiments are applied to the braided pipes 10 fitted into the slots 22, thereby forming the drainage system for use with the paved road.
  • the slots 22 are not only formed by grooving but by any other alternative means.
  • the braided pipes 10 of the present embodiment are disposed on the base course 3 at an angle in relation to the longitudinal direction of the road. Although the angle is not limited to a specific angle, they should preferably be disposed at an angle of substantially 45 degrees with respect to the longitudinal direction of the road.
  • the interval between the braided pipes 10 is not limited to a specific value. However, the interval should preferable be determined in such a way that an imaginary line crossing the longitudinal center line of the road at right angles at the bent portion of one braided pipe 10 intersects both downstream-side ends of the adjacent braided pipe.
  • a bridge surface covered with on asphalt pavement 101 is mode up of a steel or reinforced concrete base 102 (hereinafter simply referred to as a base), and a waterproof layer 103 laid on the base 102.
  • the waterproof layer 103 is surfaced with the asphalt pavement 101.
  • the waterproof layer 103 has its both ends raised straight up along wheel guards 104 on both sides of the base 102.
  • the boundary between the base 102 and the wheel guards 104 is rendered waterproof along the raised portion 103a.
  • the braided pipe 10 made of heat resistant synthetic fiber is laid along the inner side of the raised portion 3a in the longitudinal direction of the road.
  • the drain channel of this embodiment is the same in construction as that of the first embodiment.
  • the drainage channel 14 is temporarily fixed along the inner side of the raised portion 103a of the waterproof layer 103.
  • the drainage channel 14 is then connected to a bore formed in the wall of one of a plurality of catch basins 111 disposed along the wheel guard 104 of the base 102 of the bridge.
  • the drainage channel 14 and the waterproof layer 103 are surfaced with an asphalt pavement, whereby the drainage channel 14 is fixed.
  • a drainage channel 14a made by sheathing the surface of a braided pipe 10 with the nonwoven fabric 13 is laid on the waterproof layer 103 along the edge of an expansion joint 113 of the bridge.
  • the braided pipe 10 is fabricated by weaving together a required number of warps 11 and a lot of woofs 12 using the same heat resistant synthetic fiber as used in the previous embodiments.
  • Both ends of the drainage channel 14a are connected to the respective ends 112 of the drainage channels 14 that are made of the braided pipe 10 and are laid on the waterproof layer 3 along the inner sides of the wheel guards 4, 4 on both longitudinal sides of the bridge.
  • Drainage pipes 115 are connected to the drainage channel 14a along the expansion joint 113' at several points of the drainage channel, and the waterproof layer 103 and the drainage channels 14a are surfaced with asphalt mixture. With this construction, water is drained from the vicinity of the expansion joint that is graded in the longitudinal direction of the bridge.
  • the braided pipe 10 that is made of heat resistant synthetic fiber and forms the drainage channel 14 can be easily laid along curves because of its flexibility. After the waterproof layer 103 has been laid on the base 102, the waterproof layer 103 has a lot of unevenness as a result of overlaying of the layer on the base. Even in such a stage, the braided pipe 10 can be laid so as to be aligned with the uneven surface of the waterproof layer 103.
  • the drainage channel 14 made by sheathing the surface of the braided pipe 10 with the nonwoven fabric 13 is temporarily fixed onto the waterproof layer 103 in the manner as previously mentioned. Subsequently, the drainage channel 14 and the waterproof layer 103 are surfaced with a hot asphalt mixture, whereby the drainage channel 14 is fixed.
  • the braided pipe 10 forming the drainage channel 14 and the nonwoven fabric 13 cover the surface of the braided pipe 10 are made of material that is sufficiently resistant to a pavement temperature of 160 to 180 degrees Centigrade, and therefore the drainage channel will not be damaged as a result of the paving work. Further, since the braided pipes 10 are cylindrically formed from synthetic fiber having a required size, they do not deteriorate during the paving work.
  • the drainage channels 14 are disposed on both longitudinal sides of the bridge, and hence it is very unlikely that a vehicle will run over the drainage channels 14, and that the drainage channels 14 will be subject to a wheel load. Moreover, since the drainage channel 14 is flexible, the permiability of the drainage channel 14 can be maintained over a long period of time.
  • the rainwater having penetrated through the asphalt pavement 101 of the bridge surface flows into the drainage channels 14 and 14a below the asphalt pavement 101.
  • These drainage channels 14 and 14a are longitudinally disposed along the portion of the waterproof layer 103 that is raised straight up along the wheel guards 104 of the base 102, and they are formed by sheathing the surface of the braided pipe 10 with the nonwoven fabric 13. Then, the rainwater is drained to the outside from the catch basins 111 and the drainage pipes 115 which are connected to the drainage channels 14 and 14a.
  • the rainwater flows into the drainage channels 14 and 14a, it is possible to guide only the rainwater into the braided pipe 10 by means of the nonwoven fabric 13 provided on the surface of the braided pipe 10 that forms the drainage channel.
  • the asphalt pavement is cut and removed from the waterproof layer for maintenance or repair after the lapse of a predetermined period, and the waterproof layer is paved again.
  • the drainage channels 14 and 14a made of the braided pipe 10 are light and easy to operate, which in turn enables the removal of the asphalt pavement without putting a strain on or providing damage to a cutting machine when the asphalt pavement is cut. Even if the removed asphalt pavement is fed into a crasher for recycling purposes, no problems will arise. Further, it is easy to separate only the drainage channel from the water proof layer. The volume of wastes resulting from separation and discarding of the removed asphalt mixture becomes small, which provides superior workability and leads to reduced coat.
  • the nonwoven fabric 13 becomes unnecessary depending on the size of the mesh of the braided pipe 10. For example, if the mesh is small, it will be possible to prevent the intrusion of the aggregate or the like into the braided pipe 10 without the use of the nonwoven fabric.
  • a braided pipe is fabricated by weaving together a required number of warps and a lot of woofs using heat resistant synthetic fiber so as to form a drainage channel.
  • the thus fabricated drainage channel is disposed along a gutter on each side of a road at the end of a graded top of a base in a transverse direction of the road.
  • the warps woven into the braided pipe prevent the braided pipe from expanding and shrinking in its longitudinal direction. As a result, the mesh of the braided pipe will not become spread out or reduced, which permits a constant volume of water to be taken at all times. Further, since the braided pipe is flexible, it can follow curves of the road or unevenness.
  • the pipe has a mesh structure, and hence it possesses radial pressure resistance.
  • the drainage channel is made up of the braided pipe that consists of synthetic fiber, and hence any part of the drainage channel permits the flow of water. If the drainage channel is extended or is connected to another drainage channel at right angles, the drainage channel can be extended or divided by only butt-joining the braided pipe in another drainage channel or sticking the end of the braided pipe into the mesh of another drainage channel, thereby providing a degree of freedom of design for a drainage channel.
  • a plurality of first braided pipes which are fabricated by weaving a plenty of heat resistant synthetic fiber are laid on the base course of the road at predetermined intervals at an angle with respect to the longitudinal direction of the road.
  • the gutter-side ends of the braided pipes are connected to a similar second braided pipe, that is, a drainage guide pipe which is disposed along a gutter on each side of the road and is connected to the catch basins, thereby forming a drainage channel.
  • the asphalt mixture is laid on the top surfaces of the drainage channel and the base course.
  • the rainwater having penetrated through the road surface and flowed along the graded top surface of the base course flows into the braided pipe disposed on the base course at an angle to the longitudinal direction or the road from the side of the braided pipe.
  • the rainwater is then collected to the drainage guide pipe that is connected to the gutter-side ends of the braided pipes, and the thus collected rainwater is drained to the gutter via the drainage guide pipe.
  • the rainwater is prevented from permeating through or remaining in the base course, which in turn prevents the aggregate from coming away from the asphalt mixture.
  • a plurality of braided pipes are disposed on the base course at an angle with respect to the longitudinal direction of the road so as to take the rainwater flowing over the top surface of the base course.
  • the rainwater linearly flowing over the graded top surface of the base course in the downstream direction meets and flows into the side of the braided pipe through its meshes. For this reason, even if the width over which the rainwater flows is increased as in the multi-lane road, the rainwater is guided along the inside of the braided pipe, and it can be efficiently drained.
  • the braided pipes are fixedly fitted into a plurality of slots grooved in the base course of the road at predetermined intervals at an angle with respect to the longitudinal direction of the road, the braided pipes fixedly remain in their positions while being paved. Further, it becomes possible to ensure the inflow of the rainwater into the braided pipes.
  • the rainwater having penetrated through an asphalt pavement which acts as the bridge surface remains in the waterproof layer laid on the base.
  • the rainwater then flows through the drainage channel that is made up of the braided pipes consisting heat resistant fiber and being laid along the inner side surface of the raised portion of the waterproof layer along the wheel guards or curbs, or through the drainage channel that is made up of the braided pipe and is disposed on the waterproof layer along the expansion joint side edge of the bridge.
  • the rainwater is eventually drained to the outside via the catch basins or drainage pipe.
  • the drainage channel is made up of the braided pipes which are fabricated by weaving together a required number of warps and a plenty of woofs using heat resistant synthetic fiber.
  • the warps woven into the braided pipe prevent the braided pipe from expanding and shrinking in its longitudinal direction, which permits a constant inflow of the rainwater at all times. Further, since the braided pie is flexible, it can freely follow curves or unevenness and possesses radial pressure resistance. Moreover, since the drainage channel is made up of the braided pipes, there is no fear of the intrusion of aggregate into the braided pipe. The rainwater having infiltrated into the asphalt pavement is guided along the waterproof layer into the braided pipe and is eventually drained to the outside.
  • the asphalt pavement is cut and removed from the waterproof layer for maintenance or repair of the road after the lapse of a predetermined period of time, and the waterproof layer is paved again.
  • the drainage channel that is made up of the braided pipes consisting of heat resistant synthetic fiber can be removed without putting a strain on or providing damage to a cutting machine when they are cut. Even if the removed asphalt pavement is fed into a crasher for recycling purposes, no problems will arise. Further, it is easy to separate only the drainage channel from the water proof layer. The volume of wastes resulting from separation and discarding of the removed asphalt mixture becomes small, which results in superior workability.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Structures (AREA)
  • Bridges Or Land Bridges (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
EP95120567A 1994-12-27 1995-12-27 Entwässerungssystem für gepflasterte Strasse Expired - Lifetime EP0721027B1 (de)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP337034/94 1994-12-27
JP33703494 1994-12-27
JP33703494A JP2813730B2 (ja) 1994-12-27 1994-12-27 道路橋における二次排水装置
JP5376895 1995-02-20
JP53768/95 1995-02-20
JP7053768A JPH08226163A (ja) 1995-02-20 1995-02-20 道路舗装体の排水装置

Publications (2)

Publication Number Publication Date
EP0721027A1 true EP0721027A1 (de) 1996-07-10
EP0721027B1 EP0721027B1 (de) 2001-09-19

Family

ID=26394477

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95120567A Expired - Lifetime EP0721027B1 (de) 1994-12-27 1995-12-27 Entwässerungssystem für gepflasterte Strasse

Country Status (5)

Country Link
EP (1) EP0721027B1 (de)
KR (1) KR100301217B1 (de)
DE (1) DE69522790T2 (de)
ES (1) ES2162890T3 (de)
HK (1) HK1012033A1 (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2003109C2 (nl) * 2009-06-30 2011-01-20 Aannemingsmij Van Gelder B V Wegconstructie en werkwijze voor reiniging van een wegdek.
CN103016056A (zh) * 2012-12-22 2013-04-03 上海市隧道工程轨道交通设计研究院 一种用于隧道出、入口处的排水布置结构及其排水方法
WO2014126763A2 (en) * 2013-02-12 2014-08-21 Chesapeake Operating, Inc. Well pad drain and containment recovery system
CN106884381A (zh) * 2017-04-21 2017-06-23 中山市德丰科技服务有限公司 一种具有防堵功能的桥梁
CN107640943A (zh) * 2017-10-26 2018-01-30 西南科技大学 一种自装饰再生骨料透水混凝土制品及其制备方法
CN109682293A (zh) * 2018-12-05 2019-04-26 东南大学 带肋筋材增强水泥基复合材料结构保护层厚度的确定方法
CN110396893A (zh) * 2019-07-25 2019-11-01 陕西建工基础工程集团有限公司 雨水口用临时排水装置及施工方法
CN112663434A (zh) * 2020-12-17 2021-04-16 马征 一种易排水型路基路面
CN114134807A (zh) * 2021-11-25 2022-03-04 中交三公局第二工程有限公司 伸缩缝泄水方法
CN114214935A (zh) * 2022-01-05 2022-03-22 浙江竤伟集团有限公司 一种组合式钢桥桥面的铺装结构及其铺装方法

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KR101111727B1 (ko) * 2011-04-07 2012-02-15 이지용 집수부와 그레이팅을 포함한 교량 상판 물 빼기 장치 및 이를 이용한 교량 배수 시공 방법
KR101376174B1 (ko) 2012-11-09 2014-03-19 (유)이지스건설 아스팔트 포장도로의 유공 배수관용 소켓 장치
KR101680583B1 (ko) 2015-10-26 2016-12-12 주식회사 경신화이바 배수관로용 복합재료 연결소켓
CN110195407B (zh) * 2019-07-02 2020-12-11 中铁二十二局集团市政工程有限公司 一种桥梁伸缩缝的废旧止水带拆卸设备
CN113756864A (zh) * 2020-06-01 2021-12-07 中国铁道科学研究院集团有限公司铁道建筑研究所 一种铁路隧道基底病害锚注排一体化的整治方法
CN111764226A (zh) * 2020-07-09 2020-10-13 广东汇晟建设有限公司 一种市政道路施工结构及其施工方法

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JPS56156309A (en) * 1980-05-02 1981-12-03 Takiron Co Ltd Underdrainage pipe
DE3619785A1 (de) * 1986-06-12 1987-12-17 Passavant Werke Strassenentwaesserungsvorrichtung
JPH01280103A (ja) * 1988-05-06 1989-11-10 Diatex Co Ltd 道路構造体
CH674383A5 (en) * 1987-09-18 1990-05-31 Egli Gartenbau Ag Mat underlay for gravel paths - is flexible permeable sheet of textile with perforated pipes inserted in sleeves along edges

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JPS56156309A (en) * 1980-05-02 1981-12-03 Takiron Co Ltd Underdrainage pipe
DE3619785A1 (de) * 1986-06-12 1987-12-17 Passavant Werke Strassenentwaesserungsvorrichtung
CH674383A5 (en) * 1987-09-18 1990-05-31 Egli Gartenbau Ag Mat underlay for gravel paths - is flexible permeable sheet of textile with perforated pipes inserted in sleeves along edges
JPH01280103A (ja) * 1988-05-06 1989-11-10 Diatex Co Ltd 道路構造体

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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011019271A3 (en) * 2009-06-30 2012-05-18 Aannemingsbedrijf Van Gelder B.V. Road construction enabling the cleaning of a road surface and corresponding method
NL2003109C2 (nl) * 2009-06-30 2011-01-20 Aannemingsmij Van Gelder B V Wegconstructie en werkwijze voor reiniging van een wegdek.
CN103016056A (zh) * 2012-12-22 2013-04-03 上海市隧道工程轨道交通设计研究院 一种用于隧道出、入口处的排水布置结构及其排水方法
CN103016056B (zh) * 2012-12-22 2016-04-06 上海市隧道工程轨道交通设计研究院 一种用于隧道出、入口处的排水布置结构及其排水方法
WO2014126763A2 (en) * 2013-02-12 2014-08-21 Chesapeake Operating, Inc. Well pad drain and containment recovery system
WO2014126763A3 (en) * 2013-02-12 2014-10-23 Chesapeake Operating, Inc. Well pad drain and containment recovery system
CN106884381A (zh) * 2017-04-21 2017-06-23 中山市德丰科技服务有限公司 一种具有防堵功能的桥梁
CN106884381B (zh) * 2017-04-21 2019-05-07 合肥智慧龙图腾知识产权股份有限公司 一种具有防堵功能的桥梁
CN107640943B (zh) * 2017-10-26 2020-08-04 西南科技大学 一种自装饰再生骨料透水混凝土制品及其制备方法
CN107640943A (zh) * 2017-10-26 2018-01-30 西南科技大学 一种自装饰再生骨料透水混凝土制品及其制备方法
CN109682293A (zh) * 2018-12-05 2019-04-26 东南大学 带肋筋材增强水泥基复合材料结构保护层厚度的确定方法
CN110396893A (zh) * 2019-07-25 2019-11-01 陕西建工基础工程集团有限公司 雨水口用临时排水装置及施工方法
CN112663434A (zh) * 2020-12-17 2021-04-16 马征 一种易排水型路基路面
CN114134807A (zh) * 2021-11-25 2022-03-04 中交三公局第二工程有限公司 伸缩缝泄水方法
CN114134807B (zh) * 2021-11-25 2023-11-14 中交三公局第二工程有限公司 伸缩缝泄水方法
CN114214935A (zh) * 2022-01-05 2022-03-22 浙江竤伟集团有限公司 一种组合式钢桥桥面的铺装结构及其铺装方法
CN114214935B (zh) * 2022-01-05 2024-05-24 浙江竤伟集团有限公司 一种组合式钢桥桥面的铺装结构及其铺装方法

Also Published As

Publication number Publication date
KR100301217B1 (ko) 2002-11-08
ES2162890T3 (es) 2002-01-16
DE69522790T2 (de) 2002-05-02
EP0721027B1 (de) 2001-09-19
DE69522790D1 (de) 2001-10-25
KR960023524A (ko) 1996-07-20
HK1012033A1 (en) 1999-07-23

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