Slope inclined drainage device

Abstract

The utility model discloses a slope inclined drainage device, which belongs to the technical field of engineering drainage construction and comprises an outer pipe, an inner pipe, an inner support rod and a seal head connecting piece. The outer pipe is obliquely installed in a side slope drill hole, the inclination angle of the outer pipe is 6-8 degrees, the end, located in the drill hole, of the outer pipe is a closed end, the end, located outside the drill hole, of the outer pipe is an open end, the two thirds of the upper layer of the outer pipe is a permeable layer, and the one third of the lower layer of the outer pipe is an impervious layer. The inner pipe is formed by coaxially splicing a plurality of short pipes and is detachably inserted into the outer pipe, and the inner pipe is a full-permeable pipe. According to the inclined drainage device for the side slope, the double-layer structure of the outer pipe and the inner pipe is arranged, the outer pipe serves as a first filtering layer, large-particle soil and impurities can be effectively intercepted, direct blocking of the inner pipe is reduced, the outer pipe can protect the inner pipe, and therefore the service life of the inner pipe is prolonged, the inner pipe serves as a filter element, and the service life of the inner pipe is prolonged. Soil impurities are secondarily intercepted, so that the soil loss is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to engineering drainage construction technical field especially relates to a slope upwardly inclined drainage device. BACKGROUND

[0002] With the acceleration of urbanization, the demand for slope construction is increasing. However, under the influence of external factors such as natural conditions, rainfall and groundwater discharge, the slope is prone to seepage, which leads to reduced slope stability, soil erosion, landslides and other geological disasters. Such problems not only affect the safety of the slope, but also may have a serious impact on the surrounding environment and infrastructure. Therefore, a reasonable and effective drainage scheme is an important link to ensure the stability of the slope.

[0003] The traditional upwardly inclined drainage system is widely used in slope drainage engineering, which mainly uses the principle of gravity to guide the seepage water to a safe position. However, the existing upwardly inclined drainage pipe is fixedly installed in the upwardly inclined borehole. During the drainage process, due to the deposition of soil particles, impurities and biological pollutants, the traditional drainage pipe is prone to blockage, which reduces the drainage efficiency, and even in extreme cases, it can cause the slope seepage to intensify. And because the drainage pipe is fixedly installed, once the inside is blocked, it cannot be cleaned in time, and it is difficult to handle.

[0004] Therefore, we propose a slope upwardly inclined drainage device to solve the above problems. INVENTION CONTENTS

[0005] The utility model aims at solving the problems of poor filtering effect and easy blockage in the prior art, and proposes a slope upwardly inclined drainage device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A slope upwardly inclined drainage device, comprising:

[0008] An outer pipe is obliquely installed in a slope borehole, the oblique angle of the outer pipe is 6-8°, one end of the outer pipe inside the borehole is a closed end, and the other end outside the borehole is an open end, the upper two-thirds of the outer pipe is a water permeable layer, and the lower one-third is a non-permeable layer;

[0009] An inner pipe is formed by coaxially splicing a plurality of short pipes and can be detachably inserted into the outer pipe, the inner pipe is a full permeable pipe;

[0010] An inner support rod is coaxially arranged in the outer pipe, one end of the inner support rod is fixedly connected with the closed end of the outer pipe;

[0011] A head connector is used to connect the outer pipe and the inner pipe and close the open ends of the outer pipe and the inner pipe.

[0012] Preferably, one end of the short pipe is provided with an internal thread, and the other end of the short pipe is provided with an external thread, which is matched with the external thread of the adjacent short pipe.

[0013] Preferably, the outer pipe adopts a 75mm diameter curved reticular HDPE hard water-permeable pipe.

[0014] Preferably, the inner pipe adopts a 50mm diameter curved reticular PE hard water-permeable pipe.

[0015] Preferably, the head connector comprises a connecting disc and a water guide pipe, the connecting disc is threadedly connected with the outer opening of the outer pipe and the outer opening of the inner pipe respectively, and a supporting ring for supporting the inner support rod is arranged in the connecting disc.

[0016] Preferably, the inner support rod comprises a sleeve and an adjusting rod arranged coaxially, the adjusting rod is rotationally connected with the sleeve, and a plurality of positioning structures are arranged between the sleeve and the adjusting rod.

[0017] Preferably, the positioning structure comprises a sliding ring slidingly arranged in the sleeve, the sliding ring is threadedly connected with the adjusting rod, a plurality of connecting blocks one extending out of the sleeve are fixedly arranged on the outer wall of the sliding ring, a plurality of connecting blocks two corresponding to the connecting blocks one are fixedly arranged on the outer wall of the sleeve, a connecting rod is rotationally arranged on each of the connecting blocks one and the connecting blocks two, and the ends of the two connecting rods are hingedly connected.

[0018] Preferably, the outer pipe and the inner pipe are wrapped with water-permeable geotextile.

[0019] In summary, the technical effects and advantages of the utility model are as follows: the slope upward-inclined drainage device has a double-layer structure of the outer pipe and the inner pipe, the outer pipe serves as a first filter layer and can effectively intercept large-particle soil and impurities, reduce the direct blockage of the inner pipe, and protect the inner pipe, thereby prolonging the service life of the inner pipe, the inner pipe serves as a filter core and can perform secondary interception of soil impurities, and effectively reduce soil loss.

[0020] The inner pipe is connected by a screw thread, so that the user can conveniently and quickly pull out the inner pipe when maintenance or replacement is needed, and the inner pipe and the water-permeable geotextile can be replaced or cleaned separately, thereby greatly improving the maintenance efficiency, saving the maintenance cost, and reducing the time and labor consumption in the maintenance process.

[0021] The inner support rod is arranged in the inner pipe, and the positioning structure is arranged to support the inner pipe, so that the deformation of the short pipe connection is effectively avoided, the stable gap between the inner pipe and the outer pipe is ensured, the water flow can smoothly enter the inner pipe, the flow resistance is reduced, and the drainage effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1This is a schematic diagram of the installation state structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0025] Figure 4 for Figure 3 A magnified structural diagram of part A in the middle;

[0026] Figure 5 This is a schematic diagram of the structure of the short tube in this utility model;

[0027] Figure 6 This is a schematic diagram of the internal support rod in this utility model;

[0028] Figure 7 for Figure 6 A magnified structural diagram of part B.

[0029] In the diagram: 1. Outer pipe; 11. Permeable layer; 12. Impermeable layer; 2. Inner pipe; 21. Short pipe; 3. Inner support rod; 31. Sleeve; 32. Adjusting rod; 33. Slip ring; 34. Connecting block one; 35. Connecting block two; 36. Connecting rod; 4. End cap connector; 41. Connecting plate; 42. Water guide pipe; 43. Support ring; 5. Drill hole. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0031] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0032] Reference Figures 1-7 A slope-inclined drainage device includes an outer pipe 1, an inner pipe 2, an inner support rod 3, and a cap connector 4.

[0033] The outer pipe 1 is installed at an angle inside the borehole 5 on the slope. The angle of inclination of the outer pipe 1 is 6-8°. According to the "Specifications for Design of Highway Subgrade" (JTGD-2015), in order to facilitate the smooth and rapid drainage of groundwater, the angle of inclination of the inclined drainage hole should not be less than 6°. In this embodiment, the angle of inclination of the inclined drainage hole is 8°. The end of the outer pipe 1 inside the borehole 5 is the closed end, and the end outside the borehole 5 is the open end. The upper two-thirds of the outer pipe 1 is a permeable layer 11, and the lower one-third is an impermeable layer 12. The permeable layer 11 is drilled by the manufacturer at the time of delivery. The outer pipe 1 is a hard water-permeable pipe with a diameter of 75 mm and a corrugated reticular HDPE.

[0034] The inner pipe 2 is formed by coaxially splicing a plurality of short pipes 21 and is detachably inserted into the outer pipe 1. The inner pipe 2 is a full-permeable pipe and is provided with circular holes with a spacing of 50 cm when delivered from a manufacturer. The inner pipe 2 is a hard water-permeable pipe with a diameter of 50 mm and a corrugated reticular PE.

[0035] The outer pipe 1 and the inner pipe 2 are wrapped with water-permeable geotextile to effectively filter soil.

[0036] The double-layer structure of the outer pipe 1 and the inner pipe 2 can effectively intercept large particles of soil and impurities, reduce the blockage of the inner pipe 2, and protect the inner pipe 2, thereby prolonging the service life of the inner pipe 2. The inner pipe 2 serves as a filter core to intercept soil impurities again and effectively reduce soil loss.

[0037] The inner pipe 2 can be detached. When the device is cleaned and maintained, the inner pipe 2 can be directly removed from the outer pipe 1. The inner pipe 2 is regularly taken out to replace the outer water-permeable geotextile of the inner pipe 2 and clean the inner wall of the outer pipe 1 with a high-pressure water gun, thereby saving maintenance costs and improving maintenance efficiency.

[0038] One end of the short pipe 21 is provided with an internal thread, and the other end is provided with an external thread. The internal thread is matched with the external thread of the adjacent short pipe 21, which facilitates the removal and separation of the inner pipe 2 and is conducive to the cleaning and maintenance of the inner pipe 2.

[0039] The head connector 4 is used to connect the outer pipe 1 and the inner pipe 2 and to close the open ends of the outer pipe 1 and the inner pipe 2.

[0040] The head connector 4 includes a connecting disc 41 and a water guide pipe 42. The connecting disc 41 is threadedly connected with the outer opening of the outer pipe 1 and the outer opening of the inner pipe 2, and a support ring 43 for supporting the inner support rod 3 is arranged in the connecting disc 41. After the inner pipe 2 is inserted into the outer pipe 1, the inner pipe 2 and the outer pipe 1 are connected through the connecting disc 41 to fix the outer pipe 1 and the inner pipe 2 and prevent the inner pipe 2 from being pulled out. The water filtered out of the inner pipe 2 is discharged through the water guide pipe 42.

[0041] The inner support rod 3 is coaxially arranged in the outer pipe 1, and one end of the inner support rod 3 is fixedly connected with the closed end of the outer pipe 1.

[0042] The inner supporting rod 3 comprises a sleeve 31 and an adjusting rod 32 coaxially arranged, the adjusting rod 32 is rotationally connected with the sleeve 31, the sleeve 31 is fixed with the end of the outer pipe 1, a plurality of positioning structures are arranged between the sleeve 31 and the adjusting rod 32, the positioning structures comprise a sliding ring 33 slidingly arranged in the sleeve 31, the sliding ring 33 is threadedly connected with the adjusting rod 32, when the inner pipe 2 is installed, the sleeve 31 needs to be aligned with the position of the supporting ring 43, the supporting ring 43 supports the sleeve 31, the sliding ring 33 can be axially moved by rotating the adjusting rod 32, a plurality of connecting blocks one 34 extending out of the sleeve 31 are fixedly arranged on the outer wall of the sliding ring 33, a plurality of connecting blocks two 35 corresponding to the connecting blocks one 34 are fixedly arranged on the outer wall of the sleeve 31, connecting rods 36 are rotationally arranged on the connecting blocks one 34 and the connecting blocks two 35, the ends of the two connecting rods 36 are hingedly connected, when the sliding ring 33 moves, the included angle of the two connecting rods 36 is changed, when the included angle of the two sliding rings 33 is small, the hinged points of the connecting rods 36 move outward to support the inner wall of the inner pipe 2, effectively avoiding the deformation of the connecting part of the short pipe 21, and meanwhile, the stable gap between the inner pipe 2 and the outer pipe 1 is ensured, so that the water flows into the inner pipe 2 smoothly, the flow resistance is reduced, and the drainage effect is improved.

[0043] Working principle:

[0044] The anchor cable sleeve following method is adopted for the construction of the upwardly inclined drainage hole, the hole is cleaned immediately after the drilling hole 5 is completed, and the hole depth, hole diameter and inclination of the drilling hole 5 are re-inspected, and the installation of the device is carried out after the inspection is qualified.

[0045] The outer pipe 1 is slowly inserted into the drilling hole 5, the inner pipe 2 is installed immediately after the outer pipe 1 is installed in place, the short pipes 21 are connected one by one and then inserted into the outer pipe 1, the outer pipe 1 and the inner pipe 2 are fixed in position by the head connecting piece 4, and the connecting rods 36 are controlled to be outwardly supported to support the wall of the inner pipe 2 by rotating the adjusting rod 32.

[0046] In order to effectively solve the drainage problem, three rows of the device can be arranged in the roadbed filling 4.5 meters, 7.5 meters and 11 meters, the water guide pipes 42 of the three rows of the device are connected by the tee joint longitudinally and transversely, and finally the water is drained into the intercepting tank, the outlet end is treated after the tee pipe connection is checked, the outlet end hole is closed by using the vegetation bag backfilling not less than 50 cm to prevent frost heaving, and finally the earthwork is backfilled not less than 50 cm.

[0047] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A side slope upslope drainage device, characterized by, The utility model relates to a slope drilling pipe, which comprises the following parts: an outer pipe (1) is obliquely arranged in a slope drilling hole (5), the oblique angle of the outer pipe (1) is 6-8 degrees, the inner end of the outer pipe (1) is a closed end, the outer end of the outer pipe (1) is an open end, the upper two-thirds of the outer pipe (1) is a water-permeable layer (11), and the lower one-third of the outer pipe (1) is a water-impermeable layer (12); an inner pipe (2) is formed by coaxially connecting a plurality of short pipes (21) and is detachably inserted into the outer pipe (1), the inner pipe (2) is a full-permeable pipe; an inner support rod (3) is coaxially arranged in the outer pipe (1), one end of the inner support rod (3) is fixedly connected to the closed end of the outer pipe (1); a head connector (4) is used for connecting the outer pipe (1) and the inner pipe (2) and sealing the open ends of the outer pipe (1) and the inner pipe (2).

2. The upslope drainage device according to claim 1, wherein One end of the short pipe (21) is provided with an internal thread, the other end of the short pipe (21) is provided with an external thread, and the internal thread is matched with the external thread of the adjacent short pipe (21).

3. The upslope drainage device of claim 1, wherein, The outer pipe (1) is a 75mm-diameter curved net-shaped HDPE hard water-permeable pipe.

4. The upslope drainage device of claim 1, wherein, The inner pipe (2) is a 50mm-diameter curved net-shaped PE hard water-permeable pipe.

5. The upslope drainage device of claim 1, wherein, The head connector (4) comprises a connecting disc (41) and a water guide pipe (42), the connecting disc (41) is threadedly connected to the outer opening of the outer pipe (1) and the outer opening of the inner pipe (2), respectively, and a supporting ring (43) is arranged in the connecting disc (41) to support the inner support rod (3).

6. The upslope drainage device of claim 1, wherein, The inner support rod (3) comprises a sleeve (31) and an adjusting rod (32) arranged coaxially, the adjusting rod (32) is rotationally connected to the sleeve (31), and a plurality of positioning structures are arranged between the sleeve (31) and the adjusting rod (32).

7. A sloping upward drainage device according to claim 6, characterized in that The positioning structure comprises a sliding ring (33) slidingly arranged in the sleeve (31), the sliding ring (33) is threadedly connected to the adjusting rod (32), a plurality of connecting blocks one (34) extending out of the sleeve (31) are fixedly arranged on the outer wall of the sliding ring (33), a plurality of connecting blocks two (35) corresponding to the connecting blocks one (34) are fixedly arranged on the outer wall of the sleeve (31), a connecting rod (36) is rotationally arranged on the connecting blocks one (34) and the connecting blocks two (35), and the ends of the two connecting rods (36) are hingedly connected.

8. The upslope drainage device of claim 1, wherein, The outer pipe (1) and the inner pipe (2) are wrapped with water-permeable geotextile.

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