Device for measuring drainage capacity of full-section porous asphalt pavement based on field reality

Abstract

The utility model provides a full-section porous asphalt pavement drainage capacity measuring device based on field reality, which relates to the technical field of pavement water seepage measurement, and comprises a water tank, a water pump is arranged on one side of the water tank, a deluge device is arranged on one side of the water tank, and the deluge device comprises at least six rainfall pipelines. Each rainfall pipeline is communicated with the output end of the water pump, micropores are formed in the lower surface of each rainfall pipeline, and an infrared laser transmitter and an infrared sensor are arranged on one side of each rainfall pipeline. According to the utility model, different rainfall intensities can be accurately simulated, and the drainage performance of the porous asphalt pavement under different rainfall conditions can be evaluated; the defect that single-point detection of a pavement water seepage instrument cannot reflect the overall water seepage performance condition of the pavement is overcome, meanwhile, different rainfall intensities of places where different projects are located can be simulated, and accurate design of the porosity and the drainage layer thickness of the porous asphalt pavement is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to road surface drainage determination technical field, concretely relates to the full section porous asphalt pavement drainage capacity determination device based on the actual site. BACKGROUND

[0002] The current highway asphalt pavement surface layer usually adopts asphalt mastic stone asphalt mixture, and the mixture belongs to skeleton-dense structure and basically does not have water permeability. When encountering heavy rain, water film is easily formed on the road surface, causing skidding of vehicles during high-speed driving; at the same time, the water mist splashed by the tire can affect the driver's vision, seriously affecting the driving safety. In order to solve this problem, in 2001, the drainage asphalt pavement was gradually popularized and applied in China, which can quickly drain rainwater to the road surface in a short time through the surface layer void and internal connected void, and has good anti-skid and noise reduction functions. The water permeability coefficient of the drainage asphalt pavement is a key technical index for evaluating its water permeability. Its drainage capacity is determined by detecting the water permeability coefficient of the detecting device;

[0003] As prior art application number CN202122952974.8 proposes a kind of asphalt pavement water seepage performance test device under dynamic water pressure, including base, base is provided with test box, test box is provided with respectively air pressure excitation device, water seepage test device, simulation rainfall device, simulation driving rolling device and water collecting device, air pressure excitation device is connected with water seepage test device, simulation rainfall device respectively, simulation driving rolling device is located below simulation rainfall device, water collecting device is located below simulation driving rolling device, and water seepage test device, simulation driving rolling device and water collecting device are all arranged on bottom plate, two ends of bottom plate are fixed on two columns respectively, simulation rainfall device is installed on column, and two columns are fixed on the bottom wall of test box;

[0004] The above prior art is known through actual use, which detects the water permeability coefficient by single water seepage instrument to evaluate the water permeability of asphalt mixture after road surface sampling. Since this type of method is a single-point detection of drainage asphalt pavement, it is difficult to effectively evaluate the overall drainage capacity of porous asphalt pavement in actual site. UTILITY MODEL CONTENT

[0005] In view of the above problems, the utility model aims to provide a full-section porous asphalt pavement drainage capacity determination device based on actual site.

[0006] To achieve the technical purpose, the utility model discloses a scheme: based on the full -section porous asphalt pavement drainage capacity measuring device of actuality, including the water tank and the water tank one side is provided with water pump, the water tank one side is provided with rain shower device, the water tank one side still is provided with wireless pressure sensor, the rain shower device includes at least six rainfall pipelines, every rainfall pipeline all with water pump's output end intercommunication, every rainfall pipeline's lower surface is provided with micropore, every rainfall pipeline's one side all is provided with infrared laser emitter, infrared sensor and ground penetrating camera module.

[0007] Preferably, the lower surface of the water tank is fixed with a base, and the dead angle of the base is provided with a bolt hole for mounting the water tank.

[0008] Preferably, the lower end of the rain total pipe and the upper end of each rain pipe are fixed with a connecting pipe for the communication of the rain total pipe and the rain pipe.

[0009] Preferably, the lower surface of each fixing plate is fixed with the infrared laser emitter and the infrared sensor through bolts.

[0010] Preferably, the side of the water tank is provided with a groove, and the wireless pressure sensor is placed in the groove.

[0011] Preferably, the side of the water tank is provided with an acid adding part, the acid adding part includes a cylinder and a scale line, a piston is slidably installed in the cylinder, the lower end of the piston is integrally provided with a push rod, and the lower end of the push rod penetrates the cylinder; the upper end of the cylinder is communicated with the water tank through a hose, and the upper end of the cylinder is provided with a threaded plug.

[0012] The utility model has the advantages that the application can accurately simulate different rainfall intensities and evaluate the drainage performance of porous asphalt pavement under different rainfall conditions; the infrared laser emitter, the infrared sensor, the ground penetrating camera module, and the wireless pressure sensor are integrated into a unified system; the ground penetrating camera module can real-time shoot and record the road conditions; the infrared laser emitter and the infrared sensor can real-time monitor the water film thickness change of the road surface, and comprehensively reflect the dynamic process of the road surface drainage under different rainfall conditions. The utility model makes up for the defects that the single-point detection of the road surface water seepage instrument cannot reflect the overall road surface seepage performance, and can simulate the different rainfall intensities of different project locations, and realize the accurate design of the void fraction and the drainage layer thickness of the porous asphalt pavement. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the whole structure schematic diagram of the utility model;

[0014] Figure 2It is a front view schematic diagram of the utility model;

[0015] Figure 3 It is a rain shower device schematic diagram of the utility model;

[0016] Figure 4 It is a rainfall pipeline bottom schematic diagram of the utility model;

[0017] Figure 5 It is the utility model Figure 2 The enlarged schematic diagram at a of the utility model.

[0018] Wherein 1, water tank;2, rain shower device;21, rainfall pipeline;22, rainfall main pipe;23, connecting pipe;24, infrared laser emitter;25, infrared sensor;26, micropore;27, ground penetrating camera module;3, wireless pressure sensor;4, acid adding part;41, cylinder;42, scale line;43, piston;44, threaded plug;45, push rod;5, water pump;6, base. Specific implementation

[0019] The utility model will be further described in detail below in combination with the drawings and specific embodiments. In order to clearly and completely describe the technical scheme, the following embodiments are selected for description;Based on the content recorded in the present application, other embodiments obtained without creative labor are within the scope of protection of the utility model.

[0020] In the following embodiments, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "top / bottom" and other orientation or position relationships are based on the orientation or position relationship shown in the drawings, and are only for the convenience of clearly describing the embodiments, and do not indicate or imply that the device or element must have a specific orientation, so it cannot be understood as a limitation on the present application.

[0021] As Figures 1 to 5 Indicated, the present application embodiment provides the full section porous asphalt pavement drainage capacity measuring device based on the actual site, including water tank 1 and water tank 1 side is provided with water pump 5 for water supply, water tank 1 side is provided with rain shower device 2, water tank 1 side is still provided with wireless pressure sensor 3;The right end of water tank 1 is provided with control panel, and the control panel is integrated with control system for collecting and analyzing the road surface data transmitted by each sensor in the equipment;Rain shower device 2 includes at least six rainfall pipelines 21 that can expand the detection area, each rainfall pipeline 21 is in communication with the output end of water pump 5, the lower surface of each rainfall pipeline 21 is provided with micropore 26 for water spraying, and each rainfall pipeline 21 is provided with infrared laser emitter 24, infrared sensor 25 and ground penetrating camera module 27 on one side.

[0022] Wireless pressure sensor 3 can be directly taken out and installed on the road surface, and the installation position is:

[0023] Different depths inside the pavement structure: Install pressure sensors at different depths of the porous asphalt pavement, such as 5 cm, 10 cm, 15 cm, etc. from the pavement surface, to understand the penetration pressure of water at different depths inside the pavement structure, and to determine the penetration path and degree of water in the pavement structure.

[0024] Near the wheel track: When the vehicle is driving, the wheel track is the area where the pavement is greatly affected by force and water. Installing pressure sensors under the wheel track can directly measure the pressure changes in this area under the action of vehicle load and when there is water, which is of great significance for evaluating the drainage performance and mechanical response of the pavement under actual driving conditions.

[0025] Near the pavement edge and drainage outlet: Install pressure sensors near the pavement edge and drainage outlet to monitor the pressure changes of water during its flow to the drainage outlet and the pressure at the drainage outlet.

[0026] When installing, ensure that the parameters such as range and accuracy meet the measurement requirements. Prepare the tools needed for installation, such as a drill, wrench, screwdriver, sealant, cable, etc. Clean the installation location to remove debris, dust, and oil on the pavement surface, and ensure that the installation surface is flat and clean. After installation in the pavement, it is generally necessary to cover it up.

[0027] Reference Figure 1 and Figure 3 The lower surface of the water tank 1 is fixed with a base 6, and the dead angle of the base 6 is provided with a bolt hole for installing the water tank 1. The input end of the water pump 5 is communicated with the water tank 1 through a hose, and the output end of the water pump 5 is fixedly communicated with a rainfall main pipe 22 through a hose. The lower end of the rainfall main pipe 22 and the upper end of each rainfall pipe 21 are fixedly connected with a connecting pipe 23 for communicating the rainfall main pipe 22 with the rainfall pipe 21. One side of each rainfall pipe 21 is integrally provided with a fixed plate, and the lower surface of each fixed plate is fixed with an infrared laser emitter 24 and an infrared sensor 25 through bolts.

[0028] Reference Figure 1 and Figure 5 One side of the water tank 1 is provided with a recess, and a wireless pressure sensor 3 is placed in the recess. One side of the water tank 1 is provided with an acid adding part 4. The acid adding part 4 includes a cylinder 41 and a scale line 42. A piston 43 is slidably installed in the cylinder 41. The lower end of the piston 43 is integrally provided with a push rod 45, and the lower end of the push rod 45 penetrates through the cylinder 41. The upper end of the cylinder 41 is communicated with the water tank 1 through a hose, and the upper end of the cylinder 41 is threadedly provided with a threaded plug 44.

[0029] Working principle: the base 6 in the device can be fixed by bolt with the truck or the elevated, so that the rain device 2 in the device and the road surface guarantee 5-10 meters high, can increase the flexibility of the device, facilitate the actual detection of the road section needing to be detected; then the wireless pressure sensor 3 is buried in the road surface, when the water pump 5 starts, the water in the water tank 1 will be transported to the rainfall main pipe 22, the connecting pipe 23 and the rainfall pipe 21, the water flow will be sprayed out from the micropore 26 at the bottom of the rainfall pipe 21, which can simulate the rain on the road surface for detection.

[0030] The infrared laser emitter 24, the infrared sensor 25, the ground penetrating camera module 27 and the wireless pressure sensor 3 are integrated into a unified system; the ground penetrating camera module can shoot the road surface condition in real time, and the area with obvious cracks or damage can be screened out to avoid the interference of the road disease on the drainage capacity detection; the infrared laser emitter 24, the infrared sensor 25 and the infrared laser emitter 24 can cooperate to monitor the water film thickness change of the road surface in real time (the thickness of the water film can be estimated), and the dynamic process of the road surface drainage under different pressures is comprehensively reflected. The disadvantages that the single point detection of the road surface water seepage instrument cannot reflect the overall road surface water seepage performance condition are made up.

[0031] In addition, in use, the threaded plug 44 can be removed, the acid reagent and the like are injected into the cylinder 41, then the piston 43 is moved upward by pushing the push rod 45, so that the acid reagent is injected into the water tank 1, the acid rain weather is simulated, and the long-term influence of the acid rain and the like on the road surface drainage system and the road surface material can be studied.

[0032] When the acid reagent and the like are in the cylinder 41, the acid reagent and the like can be quantitatively added by observing the scale line 42, so that the detection under different pollution degrees of the road surface can be realized.

[0033] The above is only a preferred embodiment of the present application, and is not used to limit the present application, any slight modification, equivalent replacement and improvement made according to the technical essence of the present application to the above embodiment shall be included in the protection scope of the technical scheme of the present application.

Claims

1. A device for measuring the drainage capacity of a full-section porous asphalt pavement based on actual field conditions, comprising a water tank (1) and a water pump (5) arranged on one side of the water tank (1), characterized in that: One side of the water tank (1) is provided with a rain shower device (2), and one side of the water tank (1) is also provided with a wireless pressure sensor (3). The rain shower device (2) comprises at least six rainfall pipes (21), each of which is in communication with the output end of a water pump (5), the lower surface of each rainfall pipe (21) is provided with a micropore (26), and one side of each rainfall pipe (21) is provided with an infrared laser emitter (24), an infrared sensor (25) and a ground penetrating camera module (27).

2. The in-situ based full-face porous asphalt pavement drainage capacity measuring device according to claim 1, characterized in that: The lower surface of the water tank (1) is fixed with a base (6), and the dead angle of the base (6) is provided with a bolt hole for mounting the water tank (1), the input end of the water pump (5) is in communication with the water tank (1) through a hose, and the output end of the water pump (5) is fixedly communicated with a rainfall main pipe (22) through a hose.

3. The full-face porous asphalt pavement drainage capacity determination device based on field reality according to claim 2, characterized in that: The lower end of the rainfall main pipe (22) and the upper end of each rainfall pipe (21) are fixed with a connecting pipe (23) for communication between the rainfall main pipe (22) and the rainfall pipe (21).

4. The in-situ based full-face porous asphalt pavement drainage capacity measuring device according to claim 1, characterized in that: One side of each rainfall pipe (21) is integrally provided with a fixed plate, and the lower surface of each fixed plate is fixed with an infrared laser emitter (24) and an infrared sensor (25) through bolts.

5. The in-situ based full-face porous asphalt pavement drainage capacity measuring device according to claim 1, characterized in that: One side of the water tank (1) is provided with a recess, and the wireless pressure sensor (3) is placed in the recess.

6. The in-situ based full-face porous asphalt pavement drainage capacity measuring device according to claim 1, characterized in that: One side of the water tank (1) is provided with an acid adding part (4), the acid adding part (4) comprises a cylinder (41) and a scale line (42), the piston (43) is slidably installed in the cylinder (41), the lower end of the piston (43) is integrally provided with a push rod (45), and the lower end of the push rod (45) penetrates the cylinder (41); The upper end of the cylinder (41) is in communication with the water tank (1) through a hose, and the upper end of the cylinder (41) is provided with a threaded plug (44).

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