CN211523439U - Drainage device suitable for fill road bed - Google Patents

Drainage device suitable for fill road bed Download PDF

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Publication number
CN211523439U
CN211523439U CN201922348744.3U CN201922348744U CN211523439U CN 211523439 U CN211523439 U CN 211523439U CN 201922348744 U CN201922348744 U CN 201922348744U CN 211523439 U CN211523439 U CN 211523439U
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platform
water
collecting tank
drainage
slope
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CN201922348744.3U
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张建新
韩燕�
张航
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Shanxi Luheng Communications Survey & Design Co ltd
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Shanxi Luheng Communications Survey & Design Co ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/60Planning or developing urban green infrastructure

Abstract

The utility model particularly relates to a drainage device suitable for fill road bed has solved the drainage device in use of current water blocking area masonry chute and has had the problem that the construction is wasted time and energy, construction quality is wayward, the later stage disease is many. A drainage device suitable for a fill roadbed comprises a toe drainage ditch and platform drainage ditches, wherein a plurality of platform water collecting ponds are arranged on the platform drainage ditches, the drainage device also comprises water inlet water collecting ponds which are positioned at the top ends of side slopes and correspond to the platform water collecting ponds in the up-down direction of the slope surfaces one by one, and water blocking belts which are distributed in the front-back direction are arranged at the upper end of the left side wall of each water inlet water collecting pond; and water drain pipes which are communicated with the water inlet collecting tank and the platform collecting tank and are buried in the side slope are arranged between the water inlet collecting tank and the platform collecting tank and between the platform collecting tank and the slope toe drainage ditch. The utility model discloses a road bed drainage and the purpose that slows down the velocity of water, construction easy operation, time limit for a project are short, the quality is reliable, can effectively avoid appearing the problem that soil property subsides deformation, pipe shaft unstability, fracture destruction in the use.

Description

Drainage device suitable for fill road bed
Technical Field
The utility model relates to a drainage device for highway construction engineering specifically is a drainage device suitable for fill road bed.
Background
In road construction, a filling roadbed is formed by filling rock soil in a filling road section, and ground water on the filling roadbed is usually discharged by adopting a drainage device with a masonry rapid trough.
However, practice has shown that the prior drainage devices for water retaining strip masonry chutes have the following problems in use: firstly, the construction process is multiple, the construction period is long, a large amount of manpower and material resources are required to be input, the construction quality is not easy to guarantee, and diseases are easy to generate in later use; secondly, because the compaction of the foundation at the joint between the water inlet and the water blocking belt is uneven or insufficient, the discharged water body seeps through the body of the rapid trough to generate destructive effects such as settlement, deformation and the like in the soil of the side slope, and then a weak surface is formed between the skin surface and the bottom of the trough, so that the shearing resistance of the trough body under additional load is reduced, and the instability of the trough body is finally caused; thirdly, the height drop at the inlet and the outlet is large, the flow speed of the water outlet is large, and in addition, a proper energy dissipation facility is not configured, so that the water outlet of the torrent tank sinks and collapses, and the whole torrent tank is broken and damaged.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the drainage device in use of current water blocking area masonry rapid trough and have the problem that the construction is wasted time and energy, construction quality is wayward, the later stage disease is many, provide a drainage device suitable for fill road bed.
The utility model discloses an adopt following technical scheme to realize:
a drainage device suitable for a fill subgrade comprises a toe drainage ditch at the bottom of a side slope and a platform drainage ditch in the middle of the side slope, wherein a plurality of platform water collecting ponds which are distributed front and back and communicated with the platform drainage ditch are arranged on the platform drainage ditch; and water drain pipes which are communicated with the water inlet collecting tank and the platform collecting tank and are buried in the side slope are arranged between the water inlet collecting tank and the platform collecting tank and between the platform collecting tank and the slope toe drainage ditch.
The structural design of the water collecting tank of the water inlet effectively weakens the scouring action of the water body at the water inlet, avoids the problems of soil subsidence, deformation and the like caused by scouring of the water body, and further avoids the disease phenomenon of instability of the pipe body; due to the structural design of the platform water collecting tank, the flow velocity of a water body can be effectively reduced, and the problem of fracture and damage caused by over-high flow velocity is further avoided; the structural design of the platform drainage ditch is convenient for collecting platform catchment and slope runoff, and the collected water is conveyed into the next-stage water drain pipe through the platform water collection tank, so that the flow velocity of the water collected by the water drain pipe above the platform water collection tank can be effectively reduced, and the water drainage device is prevented from being broken and damaged due to too high water flow velocity; the drain pipe is arranged in a hidden burying mode, so that planting soil is conveniently paved above the pipe body for grass planting and greening; the structural design of toe gutter can introduce the road surface water that drainage device draws into the side slope outer zone, reaches the effect of purifying the surface runoff and irrigating green plants.
When the water-saving device works, firstly, a water inlet collecting tank of a masonry structure is built between the water blocking belts, and an installation opening of the water drain pipe is reserved on the right side wall of the water inlet collecting tank according to the size of the water drain pipe; then, excavating a water drain pipe groove on the side slope, and after soil on the groove wall is tamped, putting the water drain pipe into the pipe groove; and the upper end part of the drain pipe positioned above is fixed in the right side wall of the water inlet collecting tank, the lower end part of the drain pipe positioned above is fixed in the left side wall of the platform collecting tank, the upper end part of the drain pipe positioned below is fixed in the right side wall of the platform collecting tank, after the fixing of the drain pipe is finished, the lower end part of the drain pipe is placed on a toe and is communicated with a toe drainage ditch, then, the groove of the drain pipe is backfilled with original soil and is manually tamped, and the construction of the drainage device is finished. The drainage device solves the problems that the existing drainage device with the water stopping belt masonry rapid trough wastes time and labor in use, is difficult to control the construction quality and has more diseases in the later period.
The quantity of platform escape canal is a plurality of, and the wash-out pipe sets up along between domatic water inlet catch basin that corresponds from top to bottom and the platform catch basin adjacent to it, between two adjacent platform catch basins, between toe escape canal and the platform catch basin adjacent to it.
The structural design of a plurality of platform escape canals has further slowed down the velocity of flow of water, is applicable to the high fill road bed that the difference in height is big for imports and exports, and the suitability further promotes.
One end of the water blocking belt close to the water inlet collecting tank is bent rightwards; the water inlet collecting tank is a rectangular water tank with a high left and a low right; the outer side walls of the upper end part and the lower end part of the water drain pipe are provided with sealing layers.
The structure of the water blocking belt bent rightwards forms a horn-shaped water outlet, which is beneficial to collecting road surface water in a water inlet collecting tank, and meanwhile, the water body can be effectively prevented from scouring to damage the water blocking belt structure, and the service life of the drainage device is prolonged; the structural design of sealing layer can prevent effectively that the junction from appearing the infiltration or leaking, and then has avoided the water to the destruction of side slope soil property, has increased drainage device's structural firmness.
Each water drain pipe is sleeved with a plurality of anti-slip pipe seats which are fixed with the water drain pipe and are distributed along the slope at equal intervals, the anti-slip pipe seats are buried in the slope surface of the side slope in a concealed mode, the upper section and the lower section of each anti-slip pipe seat along the slope surface are in a right-angled trapezoid shape, and the left side face of each anti-slip pipe seat is an inclined face.
The structural design of the anti-skid pipe seat is beneficial to further fixing the water drain pipe, so that the position of the water drain pipe is prevented from being deviated due to the flowing of water, and the structural stability of the drainage device is further improved.
The upper end surface of the platform drainage ditch is flush with the upper end surface of the platform water collecting tank, the bottom wall of the platform drainage ditch is higher than the bottom wall of the platform water collecting tank, the width of the platform drainage ditch is smaller than that of the platform water collecting tank, and the width direction of the platform water collecting tank is the left-right direction; the left side of the toe drainage ditch is provided with a straight wall which is arranged in the front-back direction, and the lower end part of the drain pipe adjacent to the toe drainage ditch is fixedly penetrated in the straight wall; the first wall is a masonry structure.
Because the water velocity of flow in the outlet pipe of toe department is very fast, the structural design of a word wall can be to carrying the outlet pipe of high-speed water further the reinforcement, plays the energy dissipation effect, and then effectively prevents that the exit water from washing out and producing the destruction effect to drainage device structure.
Gravel cushion layers are arranged at the bottoms of the drain pipe and the anti-skid pipe seat; the water drain pipe is a polyethylene double-wall corrugated pipe with the inner diameter of 30 cm; the anti-skid pipe seat is of a masonry structure.
The polyethylene double-wall corrugated pipe has the advantages of light weight, good continuity, high sealing performance and difficulty in water leakage, the pipe is made of flexible materials, the requirement on bearing capacity of the base is low, the continuity of the pipe cannot be affected even if the base is locally deformed, water leakage is prevented from scouring the side slope, the problem that the pipe body is unstable in use is avoided, and the service life of the drainage device is effectively prolonged.
The utility model has reasonable and reliable structural design, realizes the purposes of roadbed drainage and water flow speed reduction, has simple construction operation, short construction period, reliable quality and stable and firm structure, and the water drain pipe has light weight, good continuity, high tightness, difficult water leakage and low requirement on the bearing capacity of the base, and can effectively avoid the problems of soil subsidence deformation, pipe body instability and fracture damage in use; furthermore, planting soil can be paved above the drainage device for grass planting, so that greening of the side slope is not affected; meanwhile, the method is suitable for high fill roadbed, and the applicability is further improved; has the advantages of long service life, convenient irrigation of green plants and purification of surface runoff.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic sectional view A-A of FIG. 1;
FIG. 3 is a schematic top view of FIG. 1;
FIG. 4 is a schematic view of the structure at the downcomer of FIG. 1.
In the figure, 1-toe drainage ditch, 2-platform drainage ditch, 3-platform water collecting tank, 4-water inlet water collecting tank, 5-water blocking belt, 6-water drainage pipe, 7-antiskid pipe seat, 8-straight wall and 9-gravel cushion layer.
Detailed Description
A drainage device suitable for a fill roadbed comprises a toe drainage ditch 1 positioned at the bottom of a side slope and a platform drainage ditch 2 positioned in the middle of the side slope, wherein a plurality of platform water collecting ponds 3 which are distributed front and back and are communicated with the platform drainage ditch 2 are arranged on the platform drainage ditch 2, the drainage device also comprises a water inlet water collecting pond 4 which is positioned at the top end of the side slope and is in one-to-one correspondence with the platform water collecting ponds 3 along the upper and lower directions of the slope, and a water blocking belt 5 which is distributed front and back is arranged at the upper end of the left side; and water drain pipes 6 which are communicated with the water inlet collecting tank 4 and the platform collecting tank 3 and are buried in the side slope are arranged between the platform collecting tank 3 and the slope toe drainage ditch 1.
The quantity of platform escape canal 2 is a plurality of, and the wash-out pipe 6 sets up along between domatic water inlet catch basin 4 that corresponds from top to bottom and rather than adjacent platform catch basin 3, between two adjacent platform catch basins 3, between toe escape canal 1 and rather than adjacent platform catch basin 3. One end of the water blocking belt 5 close to the water inlet collecting tank 4 is bent rightwards; the water inlet collecting tank 4 is a rectangular water tank with a high left and a low right; the outer side walls of the upper end part and the lower end part of the water drain pipe 6 are provided with sealing layers. Each water drain pipe 6 is sleeved with a plurality of anti-slip pipe seats 7 which are fixed with the water drain pipe 6 and are distributed along the slope at equal intervals, the anti-slip pipe seats 7 are buried in the slope surface of the slope in a concealed mode, the upper and lower sections of the anti-slip pipe seats 7 along the slope surface are in right-angled trapezoid shapes, and the left side surface of each anti-slip pipe seat 7 is an inclined surface. The upper end surface of the platform drainage ditch 2 is flush with the upper end surface of the platform water collecting tank 3, the bottom wall of the platform drainage ditch 2 is higher than the bottom wall of the platform water collecting tank 3, the width of the platform drainage ditch 2 is smaller than that of the platform water collecting tank 3, and the width direction of the platform water collecting tank 3 is the left-right direction; a straight wall 8 arranged in the front-back direction is arranged on the left side of the toe drainage ditch 1, and the lower end part of a drain pipe 6 adjacent to the toe drainage ditch 1 is fixedly penetrated in the straight wall 8; the horizontal wall 8 is of masonry construction. Gravel cushion layers 9 are arranged at the bottoms of the drain pipe 6 and the anti-skid pipe seat 7; the water drain pipe 6 is a polyethylene double-wall corrugated pipe with the inner diameter of 30 cm; the anti-skid pipe seat 7 is of a masonry structure.
In the specific implementation process, according to the provisions of Highway drainage design Specifications (JTJ/D33), the arrangement interval of the water drainage openings of the roadbed water blocking belt 5 is 25-50 m; the sealing layers arranged outside the side walls of the upper end part and the lower end part of the water drain pipe 6 are mortar layers or asphalt layers; the thickness of the cover soil on the top of the water drain pipe 6 is 20 cm; the pipeline construction of the water drain pipe 6 is required to be executed according to the technical code of buried polyethylene pipeline engineering; when in construction, the width of the pipe groove of the water drain pipe 6 is 90cm, the groove depth is 60cm, the clear width of two sides of the pipeline is not less than 30cm, so that the water drain pipe is convenient to backfill and tamp, the buried depth of the pipeline is shallow, the section of the pipe groove is small, the excavation construction is simple and convenient, and the operation is easy; a gravel cushion layer 9 with the thickness of 10cm and the grain diameter of less than 4cm is laid on the base of the pipe groove of the water drain pipe 6; the length of a pipe joint of the water drain pipe 6 is 6-12 m, a pipe joint interface is sealed by a water-swelling rubber ring, and after the pipe joint construction is finished, the sealing performance can be checked by adopting a water-closing or air-closing test; arranging anti-slip pipe seats 7 every 2 meters on the water drain pipe 6, pouring the anti-slip pipe seats 7 by adopting C25 concrete, and fully wrapping and fixing the pipe body; the toe drainage ditch 1 is finally drained to a place outside a roadbed or a greening area, catchment collected in a road boundary range is fully utilized to be matched with greening measures to form a complete drainage greening system, local common trees or grass and shrubs can be planted in the greening area, the collected road surface water is used for irrigating the greening area, and the collected catchment is fully purified and utilized.

Claims (6)

1. The utility model provides a drainage device suitable for fill road bed, is provided with platform catch basin (3) that a plurality of front and back distribute and communicate, its characterized in that including slope foot escape canal (1) that are located the side slope bottom and platform escape canal (2) that are located the side slope middle part on platform escape canal (2): the water inlet collecting tank (4) is positioned at the top end of the side slope and corresponds to the platform collecting tank (3) one by one in the up-down direction of the slope surface, and a water blocking belt (5) which is distributed front and back is arranged at the upper end of the left side wall of the water inlet collecting tank (4); and water drain pipes (6) which are communicated with the water inlet collecting tank (4) and the platform collecting tank (3) and are buried in the side slope in a hidden mode are arranged between the platform collecting tank (3) and the slope toe drainage ditch (1).
2. A drainage system for a filled subgrade according to claim 1, in which: the quantity of platform escape canal (2) is a plurality of, and wash-out pipe (6) set up along domatic water inlet catch basin (4) that corresponds from top to bottom and rather than between adjacent platform catch basin (3), between two adjacent platform catch basins (3), between toe escape canal (1) and rather than adjacent platform catch basin (3).
3. A drainage system for a filled subgrade according to claim 1, in which: one end of the water blocking belt (5) close to the water inlet collecting tank (4) is bent rightwards; the water inlet collecting tank (4) is a rectangular water tank with a high left and a low right; the outer side walls of the upper end part and the lower end part of the water drain pipe (6) are provided with sealing layers.
4. A drainage system for a filled subgrade according to claim 1, in which: each water drain pipe (6) is sleeved with a plurality of anti-slip pipe seats (7) which are fixed with the water drain pipes and are distributed at equal intervals up and down along the slope, the anti-slip pipe seats (7) are buried in the slope surface of the side slope in a concealed mode, the upper and lower sections of the anti-slip pipe seats (7) along the slope surface are in right-angled trapezoid shapes, and the left side face of each anti-slip pipe seat (7) is an inclined face.
5. A drainage system for a filled subgrade according to claim 1, in which: the upper end surface of the platform drainage ditch (2) is flush with the upper end surface of the platform water collecting tank (3), the bottom wall of the platform drainage ditch (2) is higher than the bottom wall of the platform water collecting tank (3), the width of the platform drainage ditch (2) is smaller than that of the platform water collecting tank (3), and the width direction of the platform water collecting tank (3) is the left-right direction; a straight wall (8) arranged in the front-back direction is arranged on the left side of the toe drainage ditch (1), and the lower end part of a drain pipe (6) adjacent to the toe drainage ditch (1) is fixedly penetrated in the straight wall (8); the first wall (8) is of masonry construction.
6. A drainage arrangement for a filled subgrade according to claim 4, in which: gravel cushion layers (9) are arranged at the bottoms of the drain pipe (6) and the anti-skid pipe seat (7); the water drain pipe (6) is a polyethylene double-wall corrugated pipe with the inner diameter of 30 cm; the anti-skid pipe seat (7) is of a masonry structure.
CN201922348744.3U 2019-12-24 2019-12-24 Drainage device suitable for fill road bed Active CN211523439U (en)

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Application Number Priority Date Filing Date Title
CN201922348744.3U CN211523439U (en) 2019-12-24 2019-12-24 Drainage device suitable for fill road bed

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Application Number Priority Date Filing Date Title
CN201922348744.3U CN211523439U (en) 2019-12-24 2019-12-24 Drainage device suitable for fill road bed

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113089797A (en) * 2021-03-08 2021-07-09 国家能源集团国源电力有限公司 Construction method of drainage system of open pit mine drainage yard

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113089797A (en) * 2021-03-08 2021-07-09 国家能源集团国源电力有限公司 Construction method of drainage system of open pit mine drainage yard

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