A drainage blind ditch structure on top of building basement

Abstract

The invention relates to the technical field of basement top water discharging structures, and relates to a building basement top roof plate water discharging blind ditch structure. A roof plate is included and provided with a waterproof layer. A plurality of water discharging blind ditches are arranged on the waterproof layer at intervals. A gravel layer is arranged in front of the multiple waterdischarging blind ditches. A planting soil layer is arranged on the upper side of the gravel layer. Each water discharging blind ditch comprises two vertically-arranged baffles and a concrete cover plate arranged on the upper side, wherein the baffles are provided with water discharging through holes opposite to the gravel layer. Water discharging assemblies are arranged in the water dischargingblind ditches. The building basement top roof plate water discharging blind ditch structure has the following effects that gaps needed for water discharging exist before gravel, and therefore the water discharging function is kept, and meanwhile the supporting strength can be kept; and during soil return, existence of the water discharging gaps can be kept, and a good rainwater discharging effectcan be kept.

Description

technical field [0001] The invention relates to the technical field of the drainage structure at the top of a basement, in particular to a drainage blind ditch structure at the top of a building basement. Background technique [0002] With the development of society and the continuous improvement of people's living standards, the number of family cars is increasing rapidly. In order to solve the problem of parking difficulties, underground garages are generally established. At the same time, in order to improve people's living environment, most of the underground garages use horizontal planting roofs and Planting plants, when there is a lot of rain and the area of ​​the single roof of the underground garage is large, the rainwater on the planting roof will not drain smoothly, and the rainwater may still seep into the basement after it is stored. [0003] For this reason, builders often solve the drainage problem of plane planting roofs by finding slopes in building structure...

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Problems solved by technology

[0004] The above existing technical solutions have the following defects: due to the large area of ​​the top surface of the underground garage as a whole, the materials used for the drainage board are generally simple, and effective protection cannot be given when backfilling the planting soil, and it is easy to be flattened and damaged. Once all the drainage gaps on the drainage board are blocked, the drainage space will be lost, resulting in water accumulation on the top of the basement

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