CN216338821U - A leak protection drainage device and central separate area drainage system for discharging blind ditch water - Google Patents
A leak protection drainage device and central separate area drainage system for discharging blind ditch water Download PDFInfo
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- CN216338821U CN216338821U CN202122598907.0U CN202122598907U CN216338821U CN 216338821 U CN216338821 U CN 216338821U CN 202122598907 U CN202122598907 U CN 202122598907U CN 216338821 U CN216338821 U CN 216338821U
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Abstract
The utility model relates to a leakage-proof drainage device for draining blind ditch water and a central separation belt drainage system. The blind ditch comprises an anti-seepage geomembrane covering the inner wall of the foundation trench, a water collecting pipe arranged at the bottom of the foundation trench and a filter material filled in the rest space of the foundation trench; the leakage-proof drainage device comprises a first drainage pipe and a second drainage pipe, wherein the first end of the first drainage pipe can penetrate through the opening formed in the leakage-proof geomembrane and is inserted into the second drainage pipe, and the second end of the first drainage pipe can be communicated with the drainage hole formed in the peripheral wall of the water collection pipe; the periphery wall of first drain pipe is provided with annular first clamp plate, the tip that the second drain pipe is close to the second end of first drain pipe is provided with annular second clamp plate, first clamp plate and second clamp plate can press from both sides tight simultaneously the edge of the trompil of prevention of seepage geomembrane forms sealed state, therefore the water storage can not follow in the blind ditch the trompil that prevention of seepage geomembrane seted up spills to the safety of guarantee road bed.
Description
Technical Field
The utility model relates to the technical field of drainage, in particular to a leakage-proof drainage device for draining blind ditch water and a central separation belt drainage system adopting the leakage-proof drainage device.
Background
In the design of road structure, the central isolation belt is generally provided with a macadam blind ditch and an external drain pipe for draining water to the side slopes on two sides of the road shoulder. The outside of the macadam blind ditch is sealed by adopting an impermeable geomembrane, the impermeable geomembrane is required to be destructively sheared if an external drain pipe is connected into the macadam blind ditch, the macadam blind ditch leaks water if the shearing opening of the geomembrane is not well treated, and water can permeate into a roadbed for a long time to cause serious hidden quality troubles.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, the present invention has been made to provide a leakage preventing drain device for draining blind drain water, which overcomes or at least partially solves the above problems, and a central partition drainage system using the same.
In a first aspect, the utility model provides a leakage-proof drainage device for draining water in a blind ditch, wherein the blind ditch comprises an anti-seepage geomembrane covering the inner wall of a foundation ditch, a water collecting pipe arranged at the bottom of the foundation ditch and a filtering material filled in the rest space of the foundation ditch; the leakage-proof drainage device comprises a first drainage pipe and a second drainage pipe, wherein the first end of the first drainage pipe can penetrate through the opening formed in the leakage-proof geomembrane and is inserted into the second drainage pipe, and the second end of the first drainage pipe can be communicated with the drainage hole formed in the peripheral wall of the water collection pipe; the periphery wall of first drain pipe is provided with annular first clamp plate, the tip that the second drain pipe is close to the second end of first drain pipe is provided with annular second clamp plate, first clamp plate can press from both sides tightly simultaneously with the second clamp plate the edge of the trompil of prevention of seepage geomembrane.
Optionally, both the first and second platens are arranged in parallel.
Optionally, a filter screen is arranged at the end or inside of the first drainage pipe.
In a second aspect, the present invention provides a central dividing belt drainage system. The center bank drainage system comprises:
the step groove is formed by excavating along the length direction of a road according to the design width of the central separation belt, and the middle of the step groove is low, and the two sides of the step groove are high; the other wall surfaces of the stepped groove except the inner wall of the base groove at the bottom are provided with anti-seepage layers;
the first anti-seepage geomembrane covers the inner wall of the foundation trench;
the water collecting pipe is arranged at the bottom of the base tank;
the coarse grain layer, the first soil-infiltrated hydraulic cloth layer, the medium coarse sand layer, the second soil-infiltrated hydraulic cloth layer and the backfill soil layer are sequentially stacked from bottom to top in the stepped groove, and the second soil-infiltrated hydraulic cloth layer is flush with the opening of the foundation groove;
the leakage-proof drainage device comprises a first drainage pipe and a second drainage pipe, wherein the first end of the first drainage pipe can penetrate through the opening formed in the first seepage-proof geomembrane and is inserted into the second drainage pipe, and the second end of the first drainage pipe can be communicated with the drainage hole formed in the peripheral wall of the water collection pipe; the periphery wall of first drain pipe is provided with annular first clamp plate, the tip that the second drain pipe is close to the second end of first drain pipe is provided with annular second clamp plate, first clamp plate can press from both sides tightly simultaneously with the second clamp plate the edge of the trompil of first prevention of seepage geomembrane.
Optionally, the impermeable layer comprises a cement mortar layer, an asphalt layer and a second impermeable geomembrane which are sequentially stacked on the wall surface of the stepped groove.
Optionally, the water collecting pipe is a hard water permeable pipe.
Optionally, the coarse layer is filled with crushed stone.
Optionally, the first and second drainage pipes are arranged along the road width direction and are arranged obliquely downward along the flow direction of water therein.
Optionally, both the first and second platens are arranged in parallel.
Optionally, a filter screen is arranged at the end or inside of the first drainage pipe.
In the embodiment of the utility model, after the anti-leakage discharge device is connected to the blind ditch, the water stored in the blind ditch can be drained to a preset position, and the first pressing plate and the second pressing plate of the anti-leakage discharge device can simultaneously clamp the edge of the opening of the anti-leakage geomembrane to form a sealing state, so that the water stored in the blind ditch cannot leak out of the opening formed by the anti-leakage geomembrane, thereby ensuring the safety of a roadbed.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic view showing the structure of an embodiment of a leakage preventing drain device for draining blind drain water according to the present invention;
FIG. 2 is a schematic structural diagram of a central dividing strip drainage system according to an embodiment of the present invention;
fig. 3 is an enlarged view of a portion a of fig. 2.
Description of reference numerals: 101. an impermeable geomembrane; 102. a water collection pipe; 103. a filter material; 104. a first drain pipe; 105. a second drain pipe; 106. a first platen; 107. a second platen; 108. a filter screen;
201. an impermeable layer; 202. a first impermeable geomembrane; 203. a water collection pipe; 204. a coarse particle layer; 205. a first soil-permeable hydraulic cloth layer; 206. a medium-coarse sand layer; 207. a second soil infiltration hydraulic cloth layer; 208. backfilling the soil layer; 209. a first drain pipe; 210. a second drain pipe; 211. a first platen; 212. a second platen; 213. a filter screen;
214. a curb; 215. a pavement facing; 216. an upper base layer; 217. a lower base layer; 218. an underlayer; 219. and (5) cushion coating.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below are exemplary embodiments for explaining the present invention with reference to the drawings and should not be construed as limiting the present invention, and those skilled in the art can make various changes, modifications, substitutions and alterations to the embodiments without departing from the principle and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
The terms "central," "longitudinal," "lateral," "length," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like, referred to or as may be referred to in the description of the utility model, are used in the indicated orientation or positional relationship indicated in the drawings for convenience in describing the utility model and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the utility model.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Furthermore, the terms "comprises," "comprising," and any variations thereof, are intended to cover non-exclusive inclusions.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Fig. 1 is a schematic structural view of an embodiment of a leakage-proof drainage device for draining water in a blind ditch according to the present invention, wherein the schematic structure of the blind ditch is drawn by dotted lines in order to facilitate the cooperation of the leakage-proof drainage device with the blind ditch.
As shown in fig. 1, the blind ditch comprises an impermeable geomembrane 101 covering the inner wall of the foundation ditch, a water collecting pipe 102 arranged at the bottom of the foundation ditch, and a filter material 103 filled in the rest space of the foundation ditch. The leakage-proof drainage device comprises a first drainage pipe 104 and a second drainage pipe 105, wherein a first end of the first drainage pipe 104 can penetrate through the opening formed in the seepage-proof geomembrane 101 and be inserted into the second drainage pipe 105, and a second end of the first drainage pipe 104 can be communicated with the drainage hole formed in the peripheral wall of the water collection pipe 102. The periphery wall of first drain pipe 104 is provided with annular first clamp plate 106, the tip that second drain pipe 105 is close to the second end of first drain pipe 104 is provided with annular second clamp plate 107, first clamp plate 106 and second clamp plate 107 can press from both sides tight the edge of the trompil of prevention of seepage geomembrane 101 simultaneously, form sealed condition. The leakage-proof drainage device is connected into a blind ditch, and can drain water stored in the blind ditch to a preset position, for example, water is drained to side slopes on two sides of a road shoulder, and the first pressing plate 106 and the second pressing plate 107 can simultaneously clamp the edge of the opening of the seepage-proof geomembrane 101 to form a sealing state, so that the water stored in the blind ditch cannot leak out from the opening formed in the seepage-proof geomembrane 101, and the safety of a roadbed is guaranteed.
In one embodiment, the first platen 106 and the second platen 107 are both arranged in parallel.
Preferably, the outer diameters of the first and second pressing plates 106, 107 are the same.
The first pressure plate 106 and the second pressure plate 107 can be both rigid plastic plates, and the first drainage pipe 104 and the second drainage pipe 105 can be both PVC pipes.
In one embodiment, a filter screen 108 is disposed at an end or inside of the first drain pipe 104 for filtering impurities in water. Meanwhile, when water is discharged from the blind ditch along the leakage-proof discharge device, acting force along the water flow direction is formed on the filter screen 108, and the acting force is transmitted to the first drainage pipe 104 through the filter screen 108, so that the first pressing plate 106 and the second pressing plate 107 can further clamp the edge of the opening of the seepage-proof geomembrane 101, and the sealing effect is better.
Fig. 2 is a schematic structural diagram of a central dividing strip drainage system according to an embodiment of the present invention. As shown in fig. 2, the center bank drainage system includes:
the step groove is formed by excavating along the length direction of a road according to the design width of the central separation belt, and the middle of the step groove is low, and the two sides of the step groove are high; the other wall surfaces of the stepped groove except the inner wall of the base groove at the bottom are all provided with an anti-seepage layer 201.
The first impermeable geomembrane 202 covers the inner wall of the foundation trench, and an M1/PE impermeable geomembrane can be adopted, and meanwhile, the longitudinal and transverse tensile strength is not less than 12kN/M, the longitudinal and transverse tensile elongation at break is not less than 300%, and the longitudinal and transverse right-angle tear strength is not less thanLess than 40N/mm, CBR bursting strength not less than 4kN, and vertical permeability coefficient not more than 5 x 10- 11cm/s。
And the coarse grain layer 204, the first soil infiltration hydraulic cloth layer 205, the medium coarse sand layer 206, the second soil infiltration hydraulic cloth layer 207 and the backfill soil layer 208 are sequentially superposed from bottom to top in the stepped groove, and the second soil infiltration hydraulic cloth layer 207 is flush with the opening of the foundation trench. The coarse layer 204 may be filled with one or both of crushed stone and gravel. The first soil-penetrating hydraulic cloth layer 205 and the second soil-penetrating hydraulic cloth layer 207 can both adopt SNG-PP-300-3 type polypropylene needle-punched non-woven geotextile with the mass per unit area of 300g/m2Thickness of not less than 2.4mm, transverse and longitudinal breaking strength of not less than 9.5kN/m, transverse and longitudinal breaking elongation of not more than 50%, and vertical permeability coefficient of not less than 5 x 10-2cm/s, the longitudinal and transverse tearing strength is not less than 0.24kN, and the CBR bursting strength is not less than 1.5 kN.
The leakage-proof drainage device comprises a first drainage pipe 209 and a second drainage pipe 210, wherein the first end of the first drainage pipe 209 can penetrate through the opening formed in the first seepage-proof geomembrane 202 and is inserted into the second drainage pipe 210, and the second end of the first drainage pipe 209 can be communicated with the drainage hole formed in the peripheral wall of the water collection pipe 203. The periphery wall of first drain pipe 209 is provided with annular first clamp plate 211, the tip that second drain pipe 210 is close to the second end of first drain pipe 209 is provided with annular second clamp plate 212, first clamp plate 211 and second clamp plate 212 can press from both sides the edge of the trompil of first prevention of seepage geomembrane 202 simultaneously.
Preferably, the first and second drainage pipes 209 and 210 are arranged along the width direction of the road and are arranged in a downward inclination along the flowing direction of water therein, so as to quickly drain the water stored in the base tank.
The number of the leakage-proof discharging devices can be determined according to the specific conditions of engineering, for example, a normal filling road section is provided, one is arranged at every 50 meters of a main line, a square road section is excavated, one is arranged at the filling and excavating junction, one is arranged at the bottom of a concave vertical curve, and one is additionally arranged at the 20 meters of the two sides of the bottom.
In one embodiment, the first and second platens 211, 212 are both arranged in parallel. Preferably, the outer diameters of the first and second pressing plates 211 and 212 are the same.
The first pressing plate 211 and the second pressing plate 212 may be rigid plastic plates, and the first drain pipe 209 and the second drain pipe 210 may be PVC pipes.
In one embodiment, a filter screen 213 is disposed at an end or inside of the first drain pipe 209 for filtering impurities in water. Meanwhile, when water is discharged from the foundation trench along the leakage-proof discharge device, acting force in the water flow direction is formed on the filter screen 213, and the acting force is transmitted to the first drain pipe 209 through the filter screen 213, so that the first pressing plate 211 and the second pressing plate 212 can further clamp the edge of the opening of the first anti-seepage geomembrane 202, and the sealing effect is better.
In one embodiment, the impermeable layer 201 includes a cement mortar layer, an asphalt layer, and a second impermeable geomembrane sequentially stacked on the wall surface of the stepped groove. The second impermeable geomembrane can adopt an M1/PE impermeable geomembrane, and has longitudinal and transverse tensile strength of not less than 12kN/M, longitudinal and transverse tensile elongation at break of not less than 300%, longitudinal and transverse right-angle tear strength of not less than 40N/mm, CBR bursting strength of not less than 4kN, and vertical permeability coefficient of not more than 5 x 10-11cm/s。
The central division strip drainage system can realize quick drainage of the central division strip, and water cannot permeate into a roadbed, so that the safety of the roadbed is effectively guaranteed.
Claims (10)
1. A leakage-proof drainage device for draining water in a blind ditch comprises an anti-seepage geomembrane covering the inner wall of a foundation trench, a water collecting pipe arranged at the bottom of the foundation trench and a filtering material filled in the rest space of the foundation trench; the method is characterized in that: the leakage-proof drainage device comprises a first drainage pipe and a second drainage pipe, wherein the first end of the first drainage pipe can penetrate through the opening formed in the leakage-proof geomembrane and is inserted into the second drainage pipe, and the second end of the first drainage pipe can be communicated with the drainage hole formed in the peripheral wall of the water collection pipe; the periphery wall of first drain pipe is provided with annular first clamp plate, the tip that the second drain pipe is close to the second end of first drain pipe is provided with annular second clamp plate, first clamp plate can press from both sides tightly simultaneously with the second clamp plate the edge of the trompil of prevention of seepage geomembrane.
2. The leak resistant drain of claim 1 wherein: the first pressing plate and the second pressing plate are arranged in parallel.
3. The leak resistant drain of claim 1 or 2, wherein: and a filter screen is arranged at the end part or inside the first drainage pipe.
4. A central dividing belt drainage system, comprising:
the step groove is formed by excavating along the length direction of a road according to the design width of the central separation belt, and the middle of the step groove is low, and the two sides of the step groove are high; the other wall surfaces of the stepped groove except the inner wall of the base groove at the bottom are provided with anti-seepage layers;
the first anti-seepage geomembrane covers the inner wall of the foundation trench;
the water collecting pipe is arranged at the bottom of the base tank;
the coarse grain layer, the first soil-infiltrated hydraulic cloth layer, the medium coarse sand layer, the second soil-infiltrated hydraulic cloth layer and the backfill soil layer are sequentially stacked from bottom to top in the stepped groove, and the second soil-infiltrated hydraulic cloth layer is flush with the opening of the foundation groove;
the leakage-proof drainage device comprises a first drainage pipe and a second drainage pipe, wherein the first end of the first drainage pipe can penetrate through the opening formed in the first seepage-proof geomembrane and is inserted into the second drainage pipe, and the second end of the first drainage pipe can be communicated with the drainage hole formed in the peripheral wall of the water collection pipe; the periphery wall of first drain pipe is provided with annular first clamp plate, the tip that the second drain pipe is close to the second end of first drain pipe is provided with annular second clamp plate, first clamp plate can press from both sides tightly simultaneously with the second clamp plate the edge of the trompil of first prevention of seepage geomembrane.
5. The center separator drainage system as claimed in claim 4, wherein: the barrier layer include in the wall of ladder groove superposes cement mortar layer, pitch layer, second prevention of seepage geomembrane in proper order.
6. The center separator drainage system as claimed in claim 4, wherein: the water collecting pipe is a hard permeable pipe.
7. The center separator drainage system as claimed in claim 4, wherein: the coarse particle layer is filled with broken stones.
8. The center separator drainage system as claimed in claim 4, wherein: the first drainage pipe and the second drainage pipe are arranged along the width direction of the road and are arranged in a downward inclination mode along the flowing direction of water in the first drainage pipe and the second drainage pipe.
9. The center separator drainage system as claimed in claim 4, wherein: the first pressing plate and the second pressing plate are arranged in parallel.
10. The central dividing belt drainage system according to any one of claims 4 to 9, wherein: and a filter screen is arranged at the end part or inside the first drainage pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122598907.0U CN216338821U (en) | 2021-10-25 | 2021-10-25 | A leak protection drainage device and central separate area drainage system for discharging blind ditch water |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122598907.0U CN216338821U (en) | 2021-10-25 | 2021-10-25 | A leak protection drainage device and central separate area drainage system for discharging blind ditch water |
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| CN216338821U true CN216338821U (en) | 2022-04-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115418908A (en) * | 2022-08-29 | 2022-12-02 | 中国一冶集团有限公司 | Sponge seepage and drainage system for sidewalk and construction method |
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2021
- 2021-10-25 CN CN202122598907.0U patent/CN216338821U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115418908A (en) * | 2022-08-29 | 2022-12-02 | 中国一冶集团有限公司 | Sponge seepage and drainage system for sidewalk and construction method |
| CN115418908B (en) * | 2022-08-29 | 2023-08-25 | 中国一冶集团有限公司 | Pavement sponge seepage and drainage system and construction method |
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