Pavement water seepage detection device and pavement quality detection system

Abstract

The utility model provides a pavement water seepage detection device and a pavement quality detection system, and belongs to the field of road detection.The pavement water seepage detection device comprises a measuring cylinder, a seepage base and a sealing assembly, the top of the measuring cylinder is provided with a water inlet, the bottom of the measuring cylinder is provided with a water outlet, and the seepage base is coaxial with the measuring cylinder and is reversely buckled on a pavement; a seepage through hole communicated with the water outlet is formed in the top of the seepage base, the sealing assembly comprises a containing ring, a pressing block and a sealing material, the periphery of the seepage base is coaxially sleeved with the containing ring, a coaxial containing groove is formed in the containing ring, the containing groove is vertically through, and the pressing block and the sealing material are both annular; the pressing block and the sealing material are sequentially arranged in the containing groove from top to bottom. Compared with the prior art, the pavement water seepage detection device provided by the utility model solves the technical problem of serious water lateral seepage in the existing pavement test process.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the road detection field, more specifically, relate to a road surface water permeation detection device, the utility model also relates to a road surface quality detection system. BACKGROUND

[0002] The water permeability of asphalt pavement is an indirect index reflecting the gradation composition of asphalt mixture of the pavement, and is also an important index of water stability of the asphalt pavement. If the entire asphalt surface layer is permeable, water will inevitably enter the base or subgrade, reducing the bearing capacity of the pavement. On the contrary, if the asphalt surface layer is impermeable, but the surface layer can quickly permeate water, a water film will not be formed, and the anti-skid performance will be greatly improved. Therefore, the water permeability coefficient of the pavement has become an important index for evaluating the performance of the pavement and is included in the relevant technical specifications.

[0003] However, due to the high surface roughness of the asphalt pavement and the presence of many gaps in the asphalt pavement, the water body is easily seeped out along the horizontal direction of the asphalt pavement during the seepage process in the existing pavement water permeation test process, so that the detection result of the pavement water permeation test does not match the actual water permeation performance of the asphalt pavement. In addition, due to the different surface roughness of the asphalt pavement under different working conditions, the lateral seepage flow of the asphalt pavement in the horizontal direction is also different, thereby causing the detection result of the pavement water permeation test to only have reference value, and the construction of the pavement cannot be guided according to the above detection result, which needs to be improved. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a road surface water permeation detection device to solve the technical problem of serious lateral seepage of water body in the existing pavement test process.

[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of providing a road surface water permeation detection device, which comprises a measuring cylinder, a liquid permeation base and a sealing assembly. The top of the measuring cylinder is provided with a water inlet, and the bottom is provided with a water outlet. The liquid permeation base is disc-shaped and coaxially connected with the measuring cylinder, and a cavity is formed between the bottom surface of the liquid permeation base and the pavement. A liquid permeation through hole is formed in the top of the liquid permeation base and communicates with the water outlet. The sealing assembly comprises a containing ring, a pressing block and a sealing material. The containing ring is coaxially sleeved on the outer periphery of the liquid permeation base. The containing ring is provided with a containing groove coaxial with the liquid permeation base, and the containing groove is through from top to bottom. The pressing block and the sealing material are annular, and the pressing block and the sealing material are sequentially arranged in the containing groove from top to bottom. The pressing block can press the sealing material in the upward and downward directions.

[0006] Further, the cylinder bottom is provided with a water outlet pipe and a water outlet valve, the water outlet pipe top end communicates with the water outlet, the water outlet pipe bottom end communicates with the liquid permeation through hole, the water outlet valve is arranged on the water outlet pipe and is used for controlling the water flow of the water outlet pipe.

[0007] Further, the liquid permeation base top is provided with a bearing plate and a support, the support top is connected with the bearing plate, the support bottom is connected with the liquid permeation base, the bearing plate plate surface is perpendicular to the vertical direction, the cylinder bottom is connected with the bearing plate upper plate surface, the bearing plate is a disc coaxial with the cylinder, and the maximum diameter of the bearing plate is not greater than the minimum diameter of the containing groove.

[0008] Further, the upper surface of the pressing block is provided with an anti-skid convex.

[0009] Further, the material of the sealing material is putty, putty or rubber clay.

[0010] Further, the material of the cylinder is transparent plastic, and the outer periphery of the cylinder is provided with a scale convex.

[0011] Further, the liquid permeation base top is provided with an exhaust through hole and a sealing plug, the exhaust through hole hole depth direction is parallel to the up-down direction, and the sealing plug is sealingly connected with the exhaust through hole to seal the cavity.

[0012] Further, the diameter of the cavity inner wall gradually increases from top to bottom, and the exhaust through hole is adjacent to the part with the minimum diameter of the liquid permeation base inner wall.

[0013] Further, the road surface water permeation detection device further comprises a positioning pin, the outer periphery of the pressing block is provided with a first positioning hole extending in the horizontal direction, the containing ring is provided with a second positioning hole extending in the horizontal direction, and the positioning pin can be inserted and fixed in the first positioning hole and the second positioning hole in the horizontal direction.

[0014] Compared with the prior art, the road surface water permeation detection device has the following advantages:

[0015] Firstly, when the road surface needs to be detected, water can be injected from the top of the cylinder, and then the liquid permeation rate of the current road surface can be detected through the change of the water level in the cylinder; in addition, the containing ring can be arranged at a predetermined position, and then the sealing material can be pressed on the road surface to be detected to realize the sealing of the detection area; at the same time, the sealing material in the containing groove can be accurately judged, so as to solve the technical problem that the amount of sealing material affects the detection result.

[0016] Another purpose of the utility model provides a road surface quality detection system, including the road surface water seepage detection device in the above.

[0017] Compared with the prior art, the road surface quality detection system in the utility model has all the advantages of the road surface water seepage detection device described above, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.In the drawings:

[0019] Fig. 1 The overall structure schematic diagram of the road surface water seepage detection device provided by the utility model is shown in the drawings.

[0020] Fig. 2 The overall structure schematic diagram of the road surface water seepage detection device in another view of the utility model is shown in the drawings.

[0021] Fig. 3 The sectional view of the liquid seepage base in the utility model is shown in the drawings.

[0022] In the drawings:

[0023] 1, measuring cylinder;11, water inlet;12, water outlet;13, water outlet pipe;14, water outlet valve;

[0024] 2, liquid seepage base;21, sealing bolt;22, support column;23, bearing plate;24, exhaust hole;25, cavity;

[0025] 3, sealing assembly;31, containing ring;311, second positioning hole;32, sealing material;33, pressing block;331, first positioning hole;34, positioning pin. DETAILED DESCRIPTION

[0026] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0027] In the description of the utility model, it should be noted that if the terms such as "up", "down", "in", "back" and other indicating orientation or position relationship appear, it is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and it is not indicated or implied that the device or element referred to must have a particular orientation, a particular orientation and operation, so it cannot be understood as a limitation on the utility model.

[0028] Moreover, in the description of the utility model, unless otherwise expressly limited, the terms "mounting", "connecting", "connection", "connecting piece" should be broadly understood. For example, the connection can be fixed connection, or detachable connection, or integrally connected; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through intermediate media, or the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood in conjunction with specific circumstances.

[0029] In order to make the technical problem, technical scheme and beneficial effect to be solved by the utility model more clear and obvious, the utility model is further described in detail below in conjunction with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0030] Please refer to Figs. 1 to 3 , now the road surface water detection device provided by the utility model is described. The road surface water detection device, including measuring cylinder 1, seepage base 2 and sealing assembly 3, the top of measuring cylinder 1 is provided with water inlet 11, the bottom is provided with water outlet 12, seepage base 2 is coaxial with measuring cylinder 1 and is invertedly buckled on the road surface, seepage base 2 top is provided with seepage through hole communicated with water outlet 12, sealing assembly 3 includes containing ring 31, pressing block 33 and sealing material 32, containing ring 31 is coaxially sleeved on the outer periphery of seepage base 2, containing ring 31 is provided with coaxial containing groove, and the containing groove is through from top to bottom, pressing block 33 and sealing material 32 are annular, and pressing block 33 and sealing material 32 are sequentially arranged in containing groove from top to bottom.

[0031] It should be noted that the specific practical steps of the above detection device are as follows:

[0032] 1, select test position;

[0033] 2, before test, first sweep the surface with broom, and brush the sundries on the road surface with brush.

[0034] 3, the water seepage test of new asphalt pavement should be completed within 12 hours after the asphalt pavement is rolled and formed.

[0035] 4, test steps: (1) place the detection device on the measuring point on the road surface.

[0036] (2) tear the preservative film wrapped outside sealing material 32, disassemble the positioning bolt of pressing block 33, make pressing block 33 compress sealing material 32, so that sealing material 32 is sealed and connected with the road surface.

[0037] (3) Close the water outlet valve and the air vent hole, and inject water into the measuring cylinder 1 until the water level reaches the 100mL mark. Then open the water outlet valve and the air vent hole to allow the water in the measuring cylinder 1 to flow out and discharge the air in the bottom of the water seepage tester. When the water level in the measuring cylinder 1 slows down, press the water seepage tester with both hands to completely discharge the air bubbles in the bottom of the water seepage tester. When the water flows out smoothly from the air vent hole, close the water outlet valve and the air vent hole, and inject water into the measuring cylinder 1 again until the water level reaches the 100mL mark.

[0038] (5) Turn on the switch, and immediately start the stopwatch when the water level drops to the 100mL mark. Record the water volume after 3 minutes of timing, and end the test. If the water level drops to the 500mL mark within 3 minutes of timing, record the time when the water level drops to the 500mL mark, and end the test. If the water level cannot drop to the 500mL mark within 3 minutes of timing after the switch is turned on, test the water seepage volume within 3 minutes of timing, and end the test.

[0039] (6) During the test, if water seeps out from between the seepage base and the sealing material 32, the sealing between the base and the road surface is not good, and the test result is invalid. Turn off the switch, supplement the sealing with the sealing material 32, and retest according to (4) to (5). If water still seeps out, select a position close to the original position along the width direction, and retest according to (1) to (5).

[0040] (7) During the test, if water seeps out from the road surface outside the outer ring, manually reseal the sealing material 32 within a 5cm wide range outside the outer ring, retest according to (4) to (5), and as long as no water seeps out within the sealing range, the test result is considered valid.

[0041] Compared with the prior art, the embodiment can inject water from the top of the measuring cylinder 1 to detect the water seepage rate of the current road surface by the change of the water level in the measuring cylinder 1. In addition, the embodiment can set the containing ring 31 at a predetermined position, and press the pressing block 33 to press the sealing material 32 on the road surface to be detected to seal the detection area. At the same time, the sealing material 32 in the embodiment is arranged in the containing groove, and the filling amount of the sealing material 32 can be accurately judged, thereby solving the technical problem that the amount of the sealing material 32 affects the detection result in the existing detection test.

[0042] Based on the above embodiment, further, in order to facilitate the control of the opening and closing of the water outlet 12 of the measuring cylinder 1, an preferred embodiment is proposed, specifically, the bottom of the measuring cylinder 1 is provided with a water outlet pipe 13 and a water outlet valve 14, the top end of the water outlet pipe 13 is communicated with the water outlet 12, the bottom end is communicated with the liquid permeation through hole, the water outlet valve 14 is arranged on the water outlet pipe 33 and is used to control the opening and closing of the water flow in the water outlet pipe 13, so arranged, the flow of the water outlet 12 can be controlled by the water outlet valve 14, so that the whole detection process is more stable and controllable.

[0043] Based on the above embodiment, an optional embodiment is proposed, in specific implementation, the top of the liquid permeation base 2 is provided with a bearing plate 23 and a support column 22, the top of the support column 22 is connected with the bearing plate 23, the bottom is connected with the liquid permeation base 2, the plate surface of the bearing plate 23 is perpendicular to the horizontal direction, the bottom of the measuring cylinder 1 is connected with the bearing plate 23, the bearing plate 23 is a disc coaxial with the measuring cylinder 1, and the maximum diameter of the bearing plate 23 is not greater than the minimum diameter of the accommodating groove, so that the operator can test the pressure of the sealing material 32 below by stepping or knocking with a rubber hammer, so that the sealing of the sealing material 32 to the road surface is more compact. At the same time, during the process of filling water into the measuring cylinder 1, water may splash on the pressing block 33, in an preferred embodiment, the upper surface of the pressing block 33 is provided with anti-skid protrusions to prevent safety hazards caused by stepping on the pressing block 33.

[0044] For the selection of the sealing material 32, further, the sealing material 32 is putty, putty or plasticine, to solve the technical problem of water absorption of existing sealing materials 32 such as yellow mud during use.

[0045] In some embodiments, the material of the measuring cylinder 1 is transparent plastic, and the outer periphery of the measuring cylinder 1 is provided with a scale protrusion, so as to observe the change of water level in the measuring cylinder 1 and obtain more accurate water level change data.

[0046] After filling water in the measuring cylinder 1, the space between the liquid permeation base 2 and the road surface is airtight, so that the internal air cannot be easily discharged, which causes the water body to be unable to completely fill the cavity composed of the liquid permeation base 2 and the road surface. In order to solve the above problem, the top of the liquid permeation base 2 is provided with an exhaust hole and a sealing plug 21, the hole depth direction of the exhaust hole is parallel to the up-down direction, the sealing plug 21 is sealingly connected with the exhaust hole 24, and is used to seal the cavity 25, so as to discharge the gas between the liquid permeation base 2 and the road surface through the sealing plug 21, so that the detection result and the detection process of the road water permeation test are more reasonable and controllable.

[0047] Based on the above embodiment, the diameter of the inner wall of the cavity 25 gradually increases from top to bottom, and the exhaust hole 24 is adjacent to the part with the smallest diameter of the inner wall of the liquid permeation base 2, so that the exhaust process of the exhaust hole 25 is more smooth, and the gas chamber in the cavity composed of the liquid permeation base 2 and the road surface is prevented.

[0048] For the connection mode between the pressing block 33 and the containing ring 31, in a more preferred embodiment, the pavement water seepage detection device further comprises a positioning pin 34, the outer periphery of the pressing block 33 is provided with a first positioning hole 331 extending in the horizontal direction, the containing ring 31 is provided with a second positioning hole 311 extending in the horizontal direction, and the positioning pin 34 can be inserted and fixed in the first positioning hole 331 and the second positioning hole 311 in the horizontal direction, so that the pressing block 33 can be fixed by pin connection of the positioning pin 34, and at the same time, the pressing block 33 can also serve as a counterweight to make the entire detection device more stable.

[0049] In summary, compared with the prior art, the utility model has the following advantages: first, when the pavement needs to be detected, water can be injected from the top of the measuring cylinder 1, and then the current pavement seepage rate can be detected by the change of the water level in the measuring cylinder 1; in addition, the containing ring 31 can be arranged at a preset position, and then the sealing material 32 can be pressed on the pavement to be detected by pressing the pressing block 33, the pressing block 33 can serve as a counterweight of the entire detection device, and at the same time, the sealing material 32 can be pressed tightly by the contact between the sealing material 32 and the pressing block 33, so that the contact between the sealing material 32 and the pavement is more closely, and the sealing of the detection area is realized; at the same time, the sealing material 32 in the embodiment is arranged in the containing groove, and the filling amount of the sealing material 32 can be accurately judged, so as to solve the technical problem that the detection result is affected by the amount of the sealing material 32 in the prior art. In addition to the above beneficial effects, the utility model also solves the technical problem that the detection device is easy to have an air chamber by optimizing the position of the exhaust hole.

[0050] Based on the same inventive concept, the utility model also provides a pavement quality detection system, which comprises the pavement water seepage detection device.

[0051] Compared with the prior art, the pavement quality detection system in the utility model has all the advantages of the pavement water seepage detection device, which will not be repeated here.

[0052] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A road surface water seepage detection device characterized by comprising: The road surface water permeation detection device comprises a measuring cylinder (1), a water permeation base (2) and a sealing assembly (3), the top of the measuring cylinder (1) is provided with a water inlet (11), and the bottom is provided with a water outlet (12); the water permeation base (2) is disc-shaped and coaxially connected with the measuring cylinder (1), and the bottom surface of the water permeation base (2) and the road surface form a cavity (25), the top of the water permeation base (2) is provided with a water permeation through hole which is in communication with the water outlet (12); the sealing assembly (3) comprises a containing ring (31), a pressing block (33) and a sealing material (32), the containing ring (31) is coaxially sleeved on the outer periphery of the water permeation base (2), the containing ring (31) is provided with a containing groove which is coaxial with the water permeation base (2) and penetrates from top to bottom, the pressing block (33) and the sealing material (32) are annular, and the pressing block (33) and the sealing material (32) are sequentially arranged in the containing groove from top to bottom, and the pressing block (33) can press the sealing material (32) in the upward and downward directions.

2. The road surface water penetration detection device of claim 1, wherein The bottom of the measuring cylinder (1) is provided with a water outlet pipe (13) and a water outlet valve (14), the top end of the water outlet pipe (13) is in communication with the water outlet (12), the bottom end is in communication with the water permeation through hole, and the water outlet valve (14) is arranged on the water outlet pipe (13) and is used for controlling the opening and closing of the water flow in the water outlet pipe (13).

3. The pavement water infiltration detection apparatus of claim 2, wherein The top of the water permeation base (2) is provided with a bearing plate (23) and a support column (22), the top of the support column (22) is connected with the bearing plate (23), the bottom is connected with the water permeation base (2), the plate surface of the bearing plate (23) is perpendicular to the vertical direction, the bottom of the measuring cylinder (1) is connected with the upper plate surface of the bearing plate (23), the bearing plate (23) is a disc coaxial with the measuring cylinder (1), and the maximum diameter of the bearing plate (23) is not greater than the minimum diameter of the containing groove.

4. The pavement water infiltration detection apparatus of claim 3, wherein The upper surface of the pressing block (33) is provided with anti-skid protrusions.

5. The pavement water infiltration detection apparatus of claim 1, wherein The material of the sealing material (32) is putty, putty or rubber clay.

6. The pavement water infiltration detection apparatus of claim 1, wherein The material of the measuring cylinder (1) is transparent plastic, and the outer periphery of the measuring cylinder (1) is provided with a scale protrusion.

7. The pavement water infiltration detection apparatus of claim 1, wherein The top of the water permeation base (2) is provided with an exhaust through hole (24) and a sealing plug (21), the hole depth direction of the exhaust through hole (24) is parallel to the upward and downward directions, and the sealing plug (21) is sealingly connected to the exhaust through hole (24) to seal the cavity (25).

8. The pavement water infiltration detection apparatus of claim 7, wherein, The diameter of the inner wall of the cavity (25) gradually increases from top to bottom, and the exhaust through hole (24) is adjacent to the part with the minimum diameter of the inner wall of the water permeation base (2).

9. The pavement water infiltration detection apparatus of claim 1, wherein, The road surface water permeation detection device further comprises a positioning pin (34), the outer periphery of the pressing block (33) is provided with a first positioning hole (331) extending in the horizontal direction, the containing ring (31) is provided with a second positioning hole (311) extending in the horizontal direction, and the positioning pin (34) can be inserted and fixed in the first positioning hole and the second positioning hole in the horizontal direction.

10. A pavement quality detection system characterized by, The road surface water permeation detection device comprises the road surface water permeation detection device according to any one of claims 1 to 9.

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