Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Soil reconstruction method for synergistically utilizing mining industry solid wastes
The invention discloses a soil reconstruction method for synergistically utilizing mining industry solid waste, which comprises the following steps of: respectively arranging a gravel layer, a coarse sand layer, a mixed matrix layer I, an interlayer and a mixed matrix layer II on the surface of mining area waste land from bottom to top; the mixed substrate layer I and the mixed substrate layer II are both constructed by mixing coarse tailings with the particle size of 2-0.5 mm and the mass ratio of more than or equal to 80% and sludge fermented by an urban sewage treatment plant, and the thickness is 10-15 cm; the volume percentage content of the coarse tailings is 30%-70%, and the volume percentage content of the sludge fermented by the domestic sewage treatment plant is 30%-70%; the interlayer is an impermeable layer for retaining and blocking rainfall infiltration and is formed by laying fine-grained tailings with the particle size smaller than 0.05 mm and the mass ratio larger than or equal to 85%, the mass content of the fraction of 0.125-0.25 mm accounts for 10%-15%, and the thickness is 5-8 cm. The tailings, the domestic sewage treatment fermentation sludge and the like are mixed to serve as surface soil substitute materials, the soil source problem of mining area waste land can be effectively solved, and meanwhile ecological restoration of the area is accelerated.
本发明公开了一种协同利用矿业固废的土壤重构方法，在矿区废弃地表面自下而上分别设置碎石层、粗砂层、混合基质层Ⅰ、夹层、混合基质层Ⅱ，混合基质层Ⅰ、混合基质层II均采用粒径2～0.5mm质量占比≥80％的粗尾矿、城市污水处理厂发酵后污泥混合构建而成，厚度为10～15cm；体积百分含量为：粗尾矿30％～70％，生活污水处理厂发酵后污泥30％～70％；夹层为保留、阻隔降水下渗的防渗层，采用粒径小于0.05mm质量占比≥85％的细粒尾砂铺设而成，其中0.125～0.25mm粒级质量含量占10％～15％，厚度为5～8cm。本发明以尾砂、生活污水处理发酵污泥等混合后作为表土替代材料，可有效解决矿区废弃地的土源问题，同时加速该区域的生态修复。
Soil reconstruction method for synergistically utilizing mining industry solid wastes
The invention discloses a soil reconstruction method for synergistically utilizing mining industry solid waste, which comprises the following steps of: respectively arranging a gravel layer, a coarse sand layer, a mixed matrix layer I, an interlayer and a mixed matrix layer II on the surface of mining area waste land from bottom to top; the mixed substrate layer I and the mixed substrate layer II are both constructed by mixing coarse tailings with the particle size of 2-0.5 mm and the mass ratio of more than or equal to 80% and sludge fermented by an urban sewage treatment plant, and the thickness is 10-15 cm; the volume percentage content of the coarse tailings is 30%-70%, and the volume percentage content of the sludge fermented by the domestic sewage treatment plant is 30%-70%; the interlayer is an impermeable layer for retaining and blocking rainfall infiltration and is formed by laying fine-grained tailings with the particle size smaller than 0.05 mm and the mass ratio larger than or equal to 85%, the mass content of the fraction of 0.125-0.25 mm accounts for 10%-15%, and the thickness is 5-8 cm. The tailings, the domestic sewage treatment fermentation sludge and the like are mixed to serve as surface soil substitute materials, the soil source problem of mining area waste land can be effectively solved, and meanwhile ecological restoration of the area is accelerated.
本发明公开了一种协同利用矿业固废的土壤重构方法，在矿区废弃地表面自下而上分别设置碎石层、粗砂层、混合基质层Ⅰ、夹层、混合基质层Ⅱ，混合基质层Ⅰ、混合基质层II均采用粒径2～0.5mm质量占比≥80％的粗尾矿、城市污水处理厂发酵后污泥混合构建而成，厚度为10～15cm；体积百分含量为：粗尾矿30％～70％，生活污水处理厂发酵后污泥30％～70％；夹层为保留、阻隔降水下渗的防渗层，采用粒径小于0.05mm质量占比≥85％的细粒尾砂铺设而成，其中0.125～0.25mm粒级质量含量占10％～15％，厚度为5～8cm。本发明以尾砂、生活污水处理发酵污泥等混合后作为表土替代材料，可有效解决矿区废弃地的土源问题，同时加速该区域的生态修复。
Soil reconstruction method for synergistically utilizing mining industry solid wastes
一种协同利用矿业固废的土壤重构方法
TAN HUI (Autor:in) / XU QINGRONG (Autor:in) / ZHANG MIN (Autor:in) / CHEN HONGGUI (Autor:in) / LI XIANGMEI (Autor:in) / WANG WEI (Autor:in) / JIANG QIN (Autor:in) / LI SHUQIN (Autor:in) / LIU JIANAN (Autor:in) / WANG WENQING (Autor:in)
22.08.2023
Patent
Elektronische Ressource
Chinesisch
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