Highway engineering-based pavement drainage device and method
A drainage device and pavement technology, applied in the direction of separation methods, chemical instruments and methods, fixed filter element filters, etc., can solve problems such as prone to nesting, affecting the concrete structure of the bridge body, and easy to block drainage pipes, etc., to achieve instant improvement The effect of reducing the discharge flow, avoiding drainage failure, and avoiding road accumulation
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Embodiment 1
[0042] see Figure 1-6 , a pavement drainage device based on highway engineering, comprising a viaduct body 1, a water tank 2, and a housing 3; a plurality of "V"-shaped water tanks 2 are pre-embedded on both sides of the viaduct body 1, and the inside of the water tank 2 A cleaning mechanism is provided; the water guide pipe 4 is connected to the bottom of the water tank 2, the water guide pipe 4 extends to the bottom of the viaduct body 1, and the other end of the water guide pipe 4 communicates with the upper part of the housing 3; the inside of the housing 3 A booster mechanism is provided, and the housing 3 is in a closed state; the bottom of the housing 3 is provided with a downpipe 13, and a filter screen 25 is arranged inside the downpipe 13; a first Partition 31, the left side of the first partition 31 is water storage; the top of the first partition 31 is provided with an air outlet 12; A partition 5, a motor 7 is provided below the second partition 5, and the motor...
Embodiment 2
[0045] The difference from Embodiment 1 is that the cam 8 is provided with a groove 27, and the other end of the moving rod 9 is connected with a slider 32, and the slider 32 is slidably connected with the groove 27; the moving rod 9 is provided with a fixed block 28 below, and the fixed block 28 is provided with a chute 29, and the moving rod 9 is matched and slidably connected with the chute 29.
[0046] The top of the water tank 2 is provided with a grate 14, and the grate 14 is provided with a plurality of water holes 15; the cleaning mechanism includes a fixed box 16, and the fixed box 16 is connected with the water tank 2; A water inlet 17 is provided, and the water inlet 17 communicates with the water flow hole 15 , and a water outlet 26 is arranged above the fixed box 16 .
[0047] The fixed box 16 is provided with a water wheel rotor 18, the top of the water wheel rotor 18 corresponds to the water inlet 17; the middle of the water wheel rotor 18 is connected to a rota...
Embodiment 3
[0054] On the basis of Embodiments 1 and 2, in order to prevent the water level of the water storage chamber in the housing 3 from being too high, prevent water from entering the right side of the third partition 6 from the air outlet 12, and affect the normal operation of the device, the housing 3 The pressure P of the water storage chamber is greater than or equal to 3000Pa and less than or equal to 8000Pa; the viaduct height h and the diameter d of the downpipe 13 meet: h / d is greater than or equal to 100 and less than or equal to 800.
[0055] In order to further increase the drainage rate and increase the instantaneous displacement, the diameter d of the downpipe 13, the pressure P, the height of the viaduct h and the discharge rate Q satisfy the following formula:
[0056] Q=μ·πd 2 (Phv / g) 1 / 2 ;
[0057] In the above formula, the unit of d is cm; the unit of h is m; the unit of P is kPa; v is the water flow velocity of the downpipe 13, and the unit is M / s; g is the mas...
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