Southwest hilly area grooved slope road rainwater collecting and reutilizing system

Abstract

The invention discloses a southwest hilly area grooved slope road rainwater collecting and reutilizing system. A rainwater collecting and reutilizing device is arranged between a drainage ditch and asouthwest hilly area slop road; the rainwater collecting and reutilizing device is composed of a water collecting groove, a filter layer, a sand gravel layer, a plant fence and a water extracting device; the water collecting groove is of a closed cavity structure, and the filter layer, the sand gravel layer and the plant fence are sequentially arranged at the top of the water collecting groove upwards; the water collecting groove and the drainage ditch are arranged in parallel, an overflow hole is formed in the upper portion of the water collecting groove to be communicated with the drainage ditch, and the bottom of the water collecting groove is lower than the bottom of the drainage ditch; the water extracting device comprises a water suction pump, a water extracting pipe and a water outlet pipe, the water suction pump is arranged at one side of the plant fence, the water extracting pipe is connected with a water inlet of the water suction pump, and the water outlet pipe is connectedwith a water outlet of the water suction pump. Rainwater resources can be balanced, rainwater is reutilized, and water, soil and nutrient loss at the southwest hilly area is reduced.

Description

technical field [0001] The invention relates to the field of comprehensive utilization of rainwater, in particular to a rainwater collection and reuse system based on a hedgerow planting mode in southwestern hilly areas and road belt ditches. Background technique [0002] The water resources in the southwestern hilly areas of my country are affected by the monsoon climate, and the seasonal distribution is uneven, and the precipitation is mainly concentrated in summer. During the flood season, the precipitation for four consecutive months accounts for 60%-80% of the annual precipitation, which is prone to summer floods. About two-thirds of the summer rain is flood runoff, and if the rainwater is not collected, it is drained down the drainage ditches and rivers. During the dry season, when there is less rainfall, crops need to be pumped from water sources to irrigate. [0003] In order to realize the rational use of rainwater resources, some measures need to be taken to coll...

AI Technical Summary

Problems solved by technology

Use permeable concrete for road construction or permeable bricks on the sidewalk, and set rainwater wells under the permeable concrete / permeable bricks for rainwater collection. This method is less operable and requires more engineering for hilly areas. Big

At the same time, the road surface rainwater interception project requires high infrastructure for road construction, and its construction cost is also high. In addition, the special terrain of the southwestern hilly area and the lack of irrigation facilities make it difficult to pump water for irrigation.

Due to the heavy rainfall during the flood season, for the southwestern hilly areas, heavy rain not only causes the loss of soil particles and nutrients, but also reduces the rainwater use efficiency

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