Sponge city construction groundwater recharge well and rapid well formation method thereof

• Main Authors: Huang Jiwen, Zhang Chao, Xu Yunhai, Zhang Pengyun, Zhang Baoxiang
• Format: Patent
• Language: Chinese; English
• Published: 17.08.2016
• Subjects: CESSPOOLS; FIXED CONSTRUCTIONS; SEWERAGE; SEWERS; WATER SUPPLY

The invention provides a sponge city construction groundwater recharge well and relates to the technical field of drainage facility. The sponge city construction groundwater recharge well comprises a drill hole which penetrates an aquitard and a water-bearing sand layer, wherein the drill hole is internally provided with a rapid sponge; a gravel bed anti-filtration layer is arranged between the rigid sponge and the bottom of the drill hole; the outer layer of the rigid sponge is coated with a geotechnical fabric; the part, which is 20-30cmm away from the ground 1, at the top of the rigid sponge is provided with a sand layer anti-filtation layer which is flush with the road surface. The invention also provides a rapid well formation method of the recharge well. A drill machine is used for drilling holes; the sand gravel anti-filtration layer is paved at the bottom of the drill hole and is provided with the rigid sponge; the outer side of the rigid sponge is wrapped with a geotechnical fabric; then the sand lay