Ramp parking lot uses ramp to get in and out of vehicles, which has the advantages of low cost and convenient operation, and can ensure the necessary speed of getting in and out of vehicles without being affected by the running state of electromechanical equipment.
Most of the underground parking lots built now are of this type. Its disadvantages are that the ratio of the used area for transportation to the whole parking area is close to 0.9: 1, the effective utilization rate of the used area is much lower than that of the mechanical parking lot, and the ventilation volume and related management personnel increase.
The site selection requirements for underground parking lots include:
(1) The planning and design of the underground parking lot should be carried out under the guidance of the overall planning of urban construction and civil air defense projects, and should be selected in areas with good hydrogeological conditions and smooth roads.
(2) Parking garage doors in cold areas should avoid facing north or the dominant wind direction in winter; There should be enough open space at the door for parking, shunting and car washing; When the garage is located in the rock stratum, the thickness, lithology, strike, slope and flood level of the rock stratum should be considered.
(3) Frequent traffic in and out of the parking lot is one of the key points of fire control. And there is a certain noise, so it is necessary to set a certain fire protection distance and sanitary distance according to the current fire protection code, and the exit should not be close to hospitals, schools and residential buildings.
(4) Combined with large underground facilities such as underground streets and subway stations.
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