2results about How to "Increase penetration time" patented technology

The invention belongs to the technical field of side slope drainage, and particularly relates to a road shoulder and side slope collaborative drainage system based on concrete precast blocks, which comprises a roadbed, a side slope positioned on the roadbed, a road shoulder positioned at the top of the side slope, and a drainage ditch positioned at the bottom of the side slope, net-shaped frame units and torrent groove units are arranged on the slope surface of the side slope at intervals, and the torrent groove units penetrate through the slope top to the slope bottom; the net-shaped frame unit is fixed on a slope surface through an anchoring part and is connected with the torrent groove unit; the drainage ditch is formed by connecting a plurality of groove units; compared with the prior art, the construction difficulty is reduced through modular components, the construction efficiency is improved, and meanwhile peak regulation and storage and ecological maintenance can be achieved.

The utility model provides a grease-proof corrugated board suitable for cold-chain logistics, which sequentially comprises a grease-proof coating, a low-temperature-resistant PLA (polylactic acid) lamination layer, a wavy buffer layer, a rebound filling layer, a degradable PE (polyethylene) preservative film layer, an oil-resistant coating, a honeycomb board layer, an oleophobic activated carbon non-woven fabric layer and a high-density corrugated paper inner layer from outside to inside, and the rebound filling layer is correspondingly arranged in a corrugated gap of the wavy buffer layer in a filling manner. High low temperature resistance and grease permeation resistance are realized.