CN101538825A - Construction method for preventing water seepage of expansion joint of concrete pavement by adopting water guide blind ditch - Google Patents
Construction method for preventing water seepage of expansion joint of concrete pavement by adopting water guide blind ditch Download PDFInfo
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- CN101538825A CN101538825A CN200910301769A CN200910301769A CN101538825A CN 101538825 A CN101538825 A CN 101538825A CN 200910301769 A CN200910301769 A CN 200910301769A CN 200910301769 A CN200910301769 A CN 200910301769A CN 101538825 A CN101538825 A CN 101538825A
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- expansion joint
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- pervious concrete
- french drain
- road surface
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Abstract
The invention discloses a construction method for preventing water seepage of an expansion joint of concrete pavement by adopting a water guide blind ditch, belonging to the technical field of road construction. The main construction method is as follows: after completing the cushion construction of a road, paying off is carried out at the position designed for the expansion joint; a ditch is excavated on the cushion along the expansion joint; a blind ditch crossing the expansion joint is fixed in the ditch; porous concrete is casted in the blind ditch; the porous concrete is on the same plane with the upper surface of the cushion; the porous concrete is covered by geotextile; and the construction operation for preventing water seepage of the expansion joint of concrete pavement is completed. When in the process of construction, the lower part of the expansion joint of the concrete pavement is provided with the blind ditch used for guiding water so as to lead the water seeped from the expansion joint to be discharged at the two sides of the road along the blind ditch for guiding water, thus solving the problems that due to water seepage of the expansion joint, the seeped water seeps into the foundation through the cushion so as to lead the foundation to be softened and be settled and the bearing capacity to be reduced, thus shortening the service life of the pavement.
Description
Technical field
The present invention relates to a kind of job practices of rigid pavement, particularly a kind of job practices that adopts the water guide french drain to prevent the concrete road surface expansion joint infiltration.
Background technology
Build the rigid pavement and compare with flexible pavement, cheap, and save the energy.But the use of general rigid pavement just may need be keeped in repair by considerable damage in about 3 years, had influenced the normal use of road.The structure of rigid pavement is on the process ground that rolls, re-lay one deck hardcore bed, and in order to prevent concrete expanding with heat and contract with cold, between two road section surfaces, need to be provided with the shrinkage joint, though handle through percolation-proof at the shrinkage joint, but after long-time the use, can produce infiltration inevitably, infiltration is through the shrinkage joint, sees through bed course and infiltrates ground, causes that ground is softening, sedimentation, traction engine is during through the road surface, make the deformation of road surface generation, occur various fractures then, had a strong impact on the application life of rigid pavement as the seesaw shape.
Summary of the invention
The technical problem that the objective of the invention is to solve is: prevent that concrete road surface expansion joint from producing the seepage phenomenon, and the destruction that minimizing produces because of shrinkage joint infiltration road pavement, from the minimizing maintenance, and the application life of prolongation rigid pavement.
The object of the present invention is achieved like this: a kind of job practices that adopts the water guide french drain to prevent the concrete road surface expansion joint infiltration, after the cushion construction of road is finished, position unwrapping wire at the design shrinkage joint, on bed course, excavate groove along the shrinkage joint, the fixing grooved profile of crossing over the shrinkage joint in groove, in grooved profile, build pervious concrete, the grooved profile of having built pervious concrete constitutes a french drain, pervious concrete and bed course upper surface are in the same plane, on pervious concrete, cover geotextiles, finish the construction operation that prevents the concrete road surface expansion joint infiltration.
A kind of job practices that adopts the water guide french drain to prevent the concrete road surface expansion joint infiltration, after the cushion construction of road is finished, position unwrapping wire at the design shrinkage joint, on bed course, excavate groove along the shrinkage joint, with cement mortar the grooved profile of having built pervious concrete is built by laying bricks or stones in groove, in the same plane with the bed course upper surface, the grooved profile of having built pervious concrete constitutes a french drain, make french drain cross over the shrinkage joint, on pervious concrete, cover geotextiles, finish the construction operation that prevents the concrete road surface expansion joint infiltration.
Described pervious concrete is for waiting particle diameter pervious concrete, and porosity is 15%-30%.
Described grooved profile adopts engineering plastics or metal material is made, and its cross sectional shape comprises and not only is not limited to the trapezoidal or quadrangle that U-shaped, semicircle, upper end have opening.
Employing water guide french drain provided by the invention prevents the job practices of concrete road surface expansion joint infiltration, play the french drain of water guide effect during construction in the setting of concrete road surface expansion joint bottom, make the infiltration of oozing be discharged into the both sides, road surface along the water guide french drain from the shrinkage joint, solved because of the shrinkage joint infiltration, infiltration sees through bed course and infiltrates ground, cause softening, the sedimentation of ground, the road surface bearing capacity descends and shortens the problem of service life of road surface.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is a construction sectional view of the present invention.
Fig. 2 installs water (flow) direction schematic diagram behind the french drain additional.
The specific embodiment
Embodiment one:
After bed course 1 construction of road is finished, position unwrapping wire at design shrinkage joint 4, on bed course 1, excavate groove along shrinkage joint 4, the fixing grooved profile 6 of crossing over shrinkage joint 4 in groove, build pervious concrete 5 in grooved profile 6, the grooved profile 6 of having built pervious concrete 5 constitutes a french drain, and pervious concrete 5 is in the same plane with bed course 1 upper surface, on pervious concrete 5, cover geotextiles 3, finish the construction operation that prevents the concrete road surface expansion joint infiltration.
Embodiment two:
After bed course 1 construction of road is finished, position unwrapping wire at design shrinkage joint 4, on bed course 1, excavate groove along shrinkage joint 4, with cement mortar the grooved profile 6 of having built pervious concrete 5 is built by laying bricks or stones in groove, in the same plane with the bed course upper surface, the grooved profile 6 of having built pervious concrete 5 constitutes a french drain, makes french drain cross over shrinkage joint 4, on pervious concrete 5, cover geotextiles 3, finish the construction operation that prevents the concrete road surface expansion joint infiltration.
As current along the shrinkage joint 4 during to bed course 1 seepage; permeable geotextiles 3 and the pervious concrete 5 crossed; but in grooved profile 6 and pervious concrete 5 common formation one french drain structures; current drain in the bed course 1 no longer down; but flow to A shown in Figure 2, B direction; be the both sides, road surface, thereby reach the purpose of protection bed course 1 and ground 7.
Employed pervious concrete 5 is for waiting particle diameter pervious concrete among the present invention, and porosity is 15%-30%.
Grooved profile 6 adopts engineering plastics or metal material is made, and its cross sectional shape comprises that not only being not limited to U-shaped, semicircle, upper end has the trapezoidal or quadrangle of opening.
Claims (4)
1. one kind is adopted the water guide french drain to prevent the job practices that concrete road surface expansion joint seeps water, it is characterized in that: after bed course (1) construction of road is finished, position unwrapping wire at design shrinkage joint (4), (4) go up the excavation groove at bed course (1) along the shrinkage joint, the fixing grooved profile (6) of crossing over shrinkage joint (4) in groove, in grooved profile (6), build pervious concrete (5), the grooved profile (6) of having built pervious concrete (5) constitutes a french drain, pervious concrete (5) is in the same plane with bed course (1) upper surface, go up covering geotextiles (3) at pervious concrete (5), finish the construction operation that prevents the concrete road surface expansion joint infiltration.
2. one kind is adopted the water guide french drain to prevent the job practices that concrete road surface expansion joint seeps water, it is characterized in that: after bed course (1) construction of road is finished, position unwrapping wire at design shrinkage joint (4), (4) go up the excavation groove at bed course (1) along the shrinkage joint, with cement mortar the grooved profile (6) of having built pervious concrete (5) is built by laying bricks or stones in groove, in the same plane with the bed course upper surface, the grooved profile (6) of having built pervious concrete (5) constitutes a french drain, make french drain cross over shrinkage joint (4), go up covering geotextiles (3) at pervious concrete (5), finish the construction operation that prevents the concrete road surface expansion joint infiltration.
3. employing water guide french drain according to claim 1 and 2 prevents the job practices of concrete road surface expansion joint infiltration, it is characterized in that: described pervious concrete (5) is for waiting particle diameter pervious concrete, and porosity is at 15%-30%.
4. employing water guide french drain according to claim 1 and 2 prevents the job practices of concrete road surface expansion joint infiltration, it is characterized in that: described french drain (6) adopts engineering plastics or metal material is made, and its cross sectional shape comprises that not only being not limited to U-shaped, semicircle, upper end has the trapezoidal or quadrangle of opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910301769A CN101538825A (en) | 2009-04-23 | 2009-04-23 | Construction method for preventing water seepage of expansion joint of concrete pavement by adopting water guide blind ditch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910301769A CN101538825A (en) | 2009-04-23 | 2009-04-23 | Construction method for preventing water seepage of expansion joint of concrete pavement by adopting water guide blind ditch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101538825A true CN101538825A (en) | 2009-09-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN200910301769A Pending CN101538825A (en) | 2009-04-23 | 2009-04-23 | Construction method for preventing water seepage of expansion joint of concrete pavement by adopting water guide blind ditch |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107988900A (en) * | 2017-12-11 | 2018-05-04 | 中交公局海威工程建设有限公司 | A kind of expansion joint water seepage treatment structure and expansion joint water seepage treatment method |
| CN110565447A (en) * | 2019-08-27 | 2019-12-13 | 中铁四院集团岩土工程有限责任公司 | Waterproof and drainage structure of ballastless track roadbed and construction method thereof |
| CN110820461A (en) * | 2019-11-04 | 2020-02-21 | 深圳市能源环保有限公司 | Method for manufacturing stainless steel ground of unloading room of garbage transfer station |
| CN111719344A (en) * | 2020-06-30 | 2020-09-29 | 南阳理工学院 | Ballast bed water-proof and drainage structure |
| CN117646355A (en) * | 2024-01-03 | 2024-03-05 | 中国科学院西北生态环境资源研究院 | Frost-proof high-speed railway base structure of frozen soil area in season |
-
2009
- 2009-04-23 CN CN200910301769A patent/CN101538825A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107988900A (en) * | 2017-12-11 | 2018-05-04 | 中交公局海威工程建设有限公司 | A kind of expansion joint water seepage treatment structure and expansion joint water seepage treatment method |
| CN110565447A (en) * | 2019-08-27 | 2019-12-13 | 中铁四院集团岩土工程有限责任公司 | Waterproof and drainage structure of ballastless track roadbed and construction method thereof |
| CN110820461A (en) * | 2019-11-04 | 2020-02-21 | 深圳市能源环保有限公司 | Method for manufacturing stainless steel ground of unloading room of garbage transfer station |
| CN110820461B (en) * | 2019-11-04 | 2021-07-20 | 深圳市能源环保有限公司 | Method for manufacturing stainless steel ground of unloading room of garbage transfer station |
| CN111719344A (en) * | 2020-06-30 | 2020-09-29 | 南阳理工学院 | Ballast bed water-proof and drainage structure |
| CN117646355A (en) * | 2024-01-03 | 2024-03-05 | 中国科学院西北生态环境资源研究院 | Frost-proof high-speed railway base structure of frozen soil area in season |
| CN117646355B (en) * | 2024-01-03 | 2024-05-10 | 中国科学院西北生态环境资源研究院 | Frost-proof high-speed railway base structure of frozen soil area in season |
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Application publication date: 20090923 |