Integrated subgrade underground seepage water discharging system

Abstract

The utility model provides an integrated roadbed subsurface seepage water discharge system which comprises a roadbed, a drainage ditch, a closed water collecting tank and a drainage pipe, the closed water collecting tank is arranged at a subsurface seepage point or a seasonal subsurface water gushing point in the roadbed and is communicated with the drainage ditch through the drainage pipe, and subsurface seepage water in the closed water collecting tank is discharged into the drainage ditch; the closed water collecting tank comprises a foundation, a tank body and a cover plate, and a closed structure is formed by adopting a rubber water stop belt, a middle-buried rubber water stop belt and a water swelling type water stop belt. According to the utility model, the closed water collecting tank is adopted to effectively collect seepage water into the tank, so that the water collecting tank integrates the functions of blocking and draining, and the problem of water seepage in the prior art is effectively solved; the closed water collecting tank and the drainage pipe form a siphon structure, so that low-water-level water can be discharged to a high-water-level drainage ditch; the overall structural design is reasonable, construction is easy, compared with building of blind ditches or sewers, the work amount and material use are reduced, and the construction cost is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of road construction, in particular to an integrated road base underground seepage water discharge system. Background Art

[0002] For areas with developed groundwater and abundant rainfall all year round, when there is groundwater on the roadbed and below, it will cause spring phenomenon and uneven settlement of the roadbed. For areas with freezing climate, groundwater will freeze when it accumulates in the roadbed. When the temperature rises, the ice will thaw, causing mud turning in the roadbed, which will seriously damage the roadbed and pavement structure, and have an adverse effect on the construction quality and later road maintenance. Therefore, underground seepage points or seasonal underground water gushing points in such areas need to be handled with caution. In the prior art, the methods for handling underground seepage points or seasonal underground water gushing points mostly adopt underground blind ditches or infiltration ditches, whose main function is drainage. However, due to the inconsistent elevations of most seepage points or seasonal water gushing points, there is a phenomenon that the underground blind ditch or infiltration ditch cannot completely discharge the seepage water, causing the seepage water to infiltrate the roadbed; especially when the elevation of the bottom of the roadbed drainage ditch is higher than the top of the roadbed, the seepage water cannot be discharged through the blind ditch; in addition, the drainage ditch wall is mostly cast with concrete, and the seepage water cannot pass through the ditch wall. As the seepage water continues to increase, it will eventually cause the roadbed and pavement structure layer to have diseases. At the same time, when building blind ditches or seepage ditches, they need to be connected to drainage ditches. Usually, the project volume is large, more materials and machinery are required, and a lot of construction costs are consumed. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides an integrated roadbed underground seepage water drainage system, which adopts the siphon principle to quickly discharge the seepage water, effectively solving the seepage problem in the prior art and the problem that the low water level underground seepage water cannot be discharged.

[0004] The technical solution adopted by the utility model is: an integrated roadbed underground seepage water drainage system, comprising a roadbed and drainage ditches arranged on both sides of the roadbed, and also comprising a closed water collection tank and a drainage pipe. The closed water collection tank is arranged at an underground seepage point or a seasonal underground water gushing point in the roadbed, and is connected to the drainage ditch through the drainage pipe, so that the underground seepage water in the closed water collection tank is discharged into the drainage ditch;

[0005] Furthermore, the enclosed water collection tank comprises a foundation, a tank body and a cover plate;

[0006] The foundation is arranged around the underground water seepage point or seasonal underground water gushing point;

[0007] The pool body is arranged above the foundation and is provided with an engaging portion for accommodating the cover plate;

[0008] The cover plate is embedded in the embedding portion, and a rubber water stop is filled between the cover plate and the embedding portion.

[0009] Furthermore, the enclosed water collection pool also includes an embedded rubber waterstop, which extends upward from the foundation to the pool body.

[0010] Furthermore, the drainage pipe passes through the pool body, and a water-swellable waterstop is filled between the drainage pipe and the pool body.

[0011] Furthermore, the water outlet end of the drain pipe is arranged in the drain ditch, and the water inlet end extends in a direction close to the cover plate.

[0012] Furthermore, the water inlet is not higher than the water outlet.

[0013] Furthermore, the drainage pipe includes a first vertical section, a first horizontal section, a second horizontal section and a second vertical section. The first vertical section is arranged in the drainage ditch and extends to the connecting hole of the pool body through the first horizontal section; the second horizontal section extends from the connecting hole into the enclosed water collection pool and is connected to the second vertical section.

[0014] Furthermore, the water outlet is higher than the bottom of the drainage ditch.

[0015] Furthermore, sleeves are pre-buried in the drainage ditch and the connecting hole.

[0016] A construction method of an integrated roadbed underground water drainage system as described above comprises the following steps:

[0017] Determine the location and elevation of underground water seepage points or seasonal underground water inflow points;

[0018] Excavate the base with the position of the underground water seepage point or the seasonal underground water gushing point as the center, cast the foundation, and pre-embed the embedded rubber water stop;

[0019] Cast the pool body and reserve connection holes;

[0020] Install the second horizontal section and the second vertical section of the drainage pipe and fill it with water-swellable waterstop;

[0021] Excavating the drainage pipe trench and installing the first horizontal section and the first vertical section;

[0022] Installing a cover plate on the pool body, and sealing the cover plate and the pool body with a rubber water stop;

[0023] Construction of roadbed and drainage ditches.

[0024] The advantages and positive effects of the utility model are:

[0025] (1) The utility model uses a closed water collection pool to effectively collect seepage water into the pool, thereby achieving the blocking of underground water seepage points or seasonal underground water gushing points, and uses the siphon principle to quickly discharge the seepage water, combining "blocking" and "drainage" in one, effectively solving the water seepage problem in the prior art.

[0026] (2) By designing an airtight closed water collection tank and forming a siphon device with the drainage ditch, water at a low water level can be discharged to the drainage ditch at a high water level, solving the problem of low-water-level underground water being unable to be discharged and ensuring the structural safety and performance of the roadbed.

[0027] (3) The overall structural design is reasonable and easy to construct. Compared with the construction of blind ditches or seepage ditches, it reduces the amount of work and material usage, saving construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of a specific embodiment of the utility model;

[0029] Figure 2 It is a schematic diagram of the structure of a closed water collection tank in a specific embodiment of the utility model.

[0030] In the figure:

[0031] 1. Roadbed 2. Drainage ditch 3. Closed water collection tank

[0032] 31. Foundation 32. Pool body 321. Connection hole

[0033] 33. Embedded rubber water stop 34. Water-expandable water stop 35. Cover plate

[0034] 36, rubber water stop 4, drainage pipe 41, water inlet

[0035] 42. Water outlet 43. First vertical section 44. First horizontal section

[0036] 45. Second horizontal section 46. Second vertical section 5. Water seepage point DETAILED DESCRIPTION

[0037] The embodiments of the present utility model are described below in conjunction with the accompanying drawings.

[0038] like Figure 1-Figure 2 As shown, the utility model proposes an integrated roadbed underground seepage water discharge system, comprising a roadbed 1, drainage ditches 2 arranged on both sides of the roadbed 1, a closed water collection tank 3 and a drainage pipe 4; the closed water collection tank 3 is arranged at an underground seepage point 5 or a seasonal underground water gushing point in the roadbed 1, and is connected to the drainage ditch 2 through the drainage pipe 4, so that the underground seepage water in the closed water collection tank 3 is discharged into the drainage ditch 2.

[0039] The underground seepage point 5 or seasonal underground water gushing point in the present application is a weak link on the surface of the earth. When the groundwater is subjected to a large hydrostatic pressure, it can flow upward through the underground seepage point 5 or the seasonal underground water gushing point and enter the closed water collecting pool 3; since the closed water collecting pool 3 itself is airtight, the influx of groundwater causes part of the air in the closed water collecting pool 3 to be discharged through the drain pipe 4, and the drain pipe 4 is connected to the drain ditch 2, and the drain ditch 2 is connected to the atmosphere. Therefore, in the initial stage of the underground seepage entering the closed water collecting pool 3, the air pressure in the pool is the same as the air pressure outside the drain ditch 2; as the amount of water in the closed water collecting pool continues to increase, the underground seepage water submerges the water inlet of the drain pipe 4 and continues to flow into the closed water collecting pool 3. At this time, the remaining air in the closed water collecting pool 3 cannot be discharged, causing the air pressure in the pool to increase, which is greater than the atmospheric pressure outside the drain ditch 2; when the pressure gradually increases to a certain value, the underground seepage water is discharged through the water inlet under the action of the pressure. This process makes full use of the siphon principle and can effectively discharge groundwater into the drainage ditch 2, preventing the groundwater from spreading to the roadbed 1; especially when the groundwater level in the closed water collection tank 3 is lower than the drainage ditch 2, the siphon principle can be used to effectively discharge the groundwater at the low water level.

[0040] Preferably, if Figure 2 As shown, the closed water collection pool 3 includes a foundation 31, a pool body 32 and a cover plate 35; wherein the foundation 31 is arranged around the underground water seepage point 5 or the seasonal underground water gushing point; the pool body 32 is arranged above the foundation 31, and is provided with a fitting portion for accommodating the cover plate 35; the cover plate 35 is embedded in the fitting portion, and a rubber water stop 36 is filled between the cover plate 35 and the fitting portion, which functions to seal the cover plate 35 and the pool body 32 to prevent water or air from being discharged from the cover plate 35; at this time, the cover plate 35, the pool body 32, and the foundation 31 and the foundation at the bottom form an overall closed space, sealing the underground water seepage point 5 or the seasonal underground water gushing point inside it. The groundwater can only flow into the closed water collecting tank 3 through the underground water seepage point 5, and will not spread to other parts of the roadbed 1, forming a "blocking" effect on the groundwater; at the same time, the setting of the rubber water stop 36 realizes the air tightness of the closed water collecting tank 3, and the cover plate 35 is used for the later maintenance of the closed water collecting tank 3 to ensure that the closed water collecting tank 3 can be used normally.

[0041] In the present application, the foundation 31 and the pool body 32 are both cast on-site with concrete, the cover plate 35 is a factory-prefabricated concrete cover plate 35, the pool body 32 is designed with a fitting portion matching the size of the cover plate 35, and a gap is left to reserve space for accommodating the rubber waterstop 36 to achieve its sealing effect.

[0042] Preferably, in order to ensure that groundwater can flow out smoothly through the underground seepage point 5 or the seasonal underground water gushing point, the bottom elevation of the foundation 31 is lower than the natural elevation of the underground seepage point 5 or the seasonal underground water gushing point; during construction, the soil is dug downward at the location of the underground seepage point 5 or the seasonal underground water gushing point to form a base, and then the foundation 31 is constructed, and the foundation 31 is arranged in a circle around the underground seepage point 5 or the seasonal underground water gushing point.

[0043] In the present application, since the closed water collection tank 3 is arranged in the roadbed 1, it is subjected to greater pressure from the roadbed 1 soil, road surface and vehicle load above it, so the tank body 32 should have sufficient rigidity to avoid damage to the closed water collection tank 3; in a specific embodiment, the wall thickness of the tank body 32 is 20 cm, and the length of the foundation 31 along the wall thickness direction of the tank body 32 is 25 cm, which can effectively support the tank body 32.

[0044] In order to further achieve the sealing effect of the closed water collection pool 3 and prevent water seepage at the junction of the pool body 32 and the foundation 31, the closed water collection pool 3 also includes an embedded rubber waterstop 33. The embedded rubber waterstop 33 extends upward from the foundation 31 to the pool body 32, and is constructed synchronously with the foundation 31. A circle is set around the underground seepage point 5 or the seasonal underground water gushing point, which can give full play to the sealing effect.

[0045] Preferably, the drain pipe 4 passes through the pool body 32, and a water-swellable waterstop 34 is filled between the drain pipe 4 and the pool body 32 to prevent water or air from being discharged from the connection between the drain pipe 4 and the pool body 32, further sealing the closed water collection pool 3, so that the drain pipe 4 and the closed water collection pool 3 form a siphon structure.

[0046] Furthermore, the water outlet end 42 of the drain pipe 4 is arranged in the drainage ditch 2, and the water inlet end 41 extends toward the direction close to the cover plate 35, so that when the underground seepage water fills the closed water collection tank 3 from bottom to top, part of the air can be discharged through the water inlet end 41 of the drain pipe 4, and the underground seepage water can cover the water inlet end 41, thereby realizing the siphon effect.

[0047] Furthermore, in a specific embodiment, the water inlet 41 is not higher than the water outlet 42, and underground seepage water at a low water level can be discharged from the drainage pipe 4 to the drainage ditch 2 at a high water level under the siphon effect of the closed water collection tank 3, thereby preventing underground seepage water from seeping into the roadbed 1.

[0048] Preferably, a distance is set between the water inlet end 41 and the cover plate 35, so that there is enough space in the closed water collection pool 3 to accumulate air pressure to form a siphon effect, and effectively discharge water through the drain pipe 4. In a specific embodiment, the distance between the water inlet end 41 of the drain pipe 4 and the cover plate 35 does not exceed 8 cm, which can fully form a siphon effect.

[0049] Preferably, the drain pipe 4 includes a first vertical section 43, a first horizontal section 44, a second horizontal section 45 and a second vertical section 46. The first vertical section 43 is arranged in the drain ditch 2 and extends to the connecting hole 321 of the pool body 32 through the first horizontal section 44; the second horizontal section 45 extends from the connecting hole 321 to the closed water collection pool 3 and is connected to the second vertical section 46.

[0050] Preferably, the top of the first vertical section 43 is the water outlet 42, and the water outlet 42 is higher than the bottom of the drainage ditch 2. When the bottom elevation of the drainage ditch 2 is higher than the water inlet 41, this design can effectively prevent the water in the drainage ditch 2 from flowing back into the closed water collection tank 3.

[0051] Furthermore, sleeves are pre-buried in the drainage ditch 2 and the connecting hole 321, which makes it easier to install the drainage pipe 4; the first vertical section 43 and the first horizontal section 44 are connected by a bend pipe, and the second horizontal section 45 and the second vertical section 46 are connected by a bend pipe, so that the drainage pipe 4 itself has good airtightness.

[0052] In this embodiment, the first horizontal section 44 and the second horizontal section 45 extend in the horizontal direction; in other embodiments of the present application, the first horizontal section 44 and the second horizontal section 45 may also extend at an angle inclined to the horizontal direction according to the positional relationship between the drainage ditch 2 and the closed water collection tank 3; the function of the drain pipe 4 is to discharge the water in the closed water collection tank 3 into the drainage ditch 2 through the siphon effect. To achieve this function, the drain pipe 4 can be designed into any structural shape, which is not limited here.

[0053] The present application proposes a construction method for an integrated roadbed underground water drainage system, comprising the following steps:

[0054] Determine the location of underground water seepage point 5 or seasonal underground water gushing point; usually, for areas with developed groundwater and abundant rainfall all year round, underground water seepage point 5 or seasonal underground water gushing point can be accurately identified through geological survey and its elevation can be recorded; determine the location of the foundation surface corresponding to underground water seepage point 5 or seasonal underground water gushing point in combination with on-site observation and mark it;

[0055] The base is excavated with the marked underground water seepage point 5 or seasonal underground water gushing point as the center, and the base is excavated to below the elevation of the underground water seepage point 5 or seasonal underground water gushing point, and the base is leveled and then the foundation 31 is poured. The foundation 31 is set around the underground water seepage point 5 or seasonal underground water gushing point, and the embedded rubber water stop strip 33 is pre-buried during pouring;

[0056] Casting the pool body 32, reserving a connection hole 321; using a reserved sleeve to form the connection hole 321;

[0057] Install the second horizontal section 45 and the second vertical section 46 of the drainage pipe 4, and fill the water-expandable waterstop 34 between the reserved sleeve and the second horizontal section 45;

[0058] Excavate the pipe trench of the drainage pipe 4, install the first horizontal section 44 and the first vertical section 43; install the first horizontal section 44 in the reserved casing, and fill the water-expandable water stop strip 34 between the reserved casing and the first horizontal section 44;

[0059] Install the cover plate 35 on the pool body 32, and use a rubber water stop 36 to seal the cover plate 35 and the pool body 32;

[0060] The roadbed 1 and the drainage ditch 2 are constructed, and during the construction, the contact portion between the drainage ditch 2 and the drainage pipe 4 is sealed.

[0061] In this embodiment, after the installation of the drain pipe 4 is completed, a water tightness test is performed on the closed water collection tank 3 and the drain pipe 4 to ensure that there is no water seepage or leakage at the connection between the two and the seams of the closed water collection tank 3.

[0062] The advantages and positive effects of the utility model are:

[0063] (1) The utility model uses a closed water collection pool to effectively collect seepage water into the pool, thereby achieving the blocking of underground water seepage points or seasonal underground water gushing points, and uses the siphon principle to quickly discharge the seepage water, combining "blocking" and "drainage" in one, effectively solving the water seepage problem in the prior art.

[0064] (2) By designing an airtight closed water collection tank and forming a siphon device with the drainage ditch, water at a low water level can be discharged to the drainage ditch at a high water level, solving the problem of low-water-level underground water being unable to be discharged and ensuring the structural safety and performance of the roadbed.

[0065] (3) The overall structural design is reasonable and easy to construct. Compared with the construction of blind ditches or seepage ditches, it reduces the amount of work and material usage, saving construction costs.

[0066] The above is a detailed description of the embodiments of the utility model, but the contents are only preferred embodiments of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. An integrated roadbed underground seepage water drainage system, comprising a roadbed and drainage ditches arranged on both sides of the roadbed, characterized in that: It also includes a closed water collection tank and a drainage pipe. The closed water collection tank is set at an underground water seepage point or a seasonal underground water gushing point in the roadbed, and is connected to the drainage ditch through the drainage pipe to discharge the underground seepage water in the closed water collection tank into the drainage ditch.

2. The integrated roadbed underground water drainage system according to claim 1 is characterized by: The enclosed water collection tank comprises a foundation, a tank body and a cover plate; The foundation is arranged around the underground water seepage point or seasonal underground water gushing point; The pool body is arranged above the foundation and is provided with an engaging portion for accommodating the cover plate; The cover plate is embedded in the embedding portion, and a rubber water stop is filled between the cover plate and the embedding portion.

3. The integrated roadbed underground water drainage system according to claim 2 is characterized by: The enclosed water collection pool also includes an embedded rubber waterstop, which extends upward from the foundation to the pool body.

4. The integrated roadbed underground water drainage system according to claim 2 or 3, characterized in that: The drainage pipe passes through the pool body, and a water-expandable waterstop is filled between the drainage pipe and the pool body.

5. The integrated roadbed underground water drainage system according to claim 2 is characterized by: The water outlet end of the drainage pipe is arranged in the drainage ditch, and the water inlet end extends toward the direction close to the cover plate.

6. The integrated roadbed underground water drainage system according to claim 5 is characterized by: The water inlet end is not higher than the water outlet end.

7. The integrated roadbed underground water drainage system according to claim 2 is characterized by: The drainage pipe includes a first vertical section, a first horizontal section, a second horizontal section and a second vertical section. The first vertical section is arranged in the drainage ditch and extends to the connecting hole of the pool body through the first horizontal section; the second horizontal section extends from the connecting hole into the closed water collection pool and is connected to the second vertical section.

8. The integrated roadbed underground water drainage system according to claim 5 is characterized by: The water outlet end is higher than the bottom of the drainage ditch.

9. The integrated roadbed underground water drainage system according to claim 7, characterized in that: Sleeves are pre-buried in the drainage ditch and the connecting hole.

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