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A platform for research: civil engineering, architecture and urbanism
Self-repairing covering layer with tailing sand as main material and construction method
The invention provides a self-repairing covering layer with tailing sand as a main material and a construction method of the self-repairing covering layer. The covering layer is laid on the landfill layer and comprises a coarse tailing salt isolation layer, a fine tailing water isolation layer, a coarse tailing capillary isolation layer, a fine tailing water storage layer and a fine tailing nutrient soil layer from bottom to top, and the fine tailing water storage layer is formed by mixing tailing sand and hydrophilic minerals; the fine tailing water-resisting layer is a key layer of the covering layer structure for exerting the anti-seepage and air-closing effects and is formed by mixing tailing sand, bentonite, hydrophilic polymers and polypropylene fibers. The industrial solid waste tailing sand is utilized, resource utilization of the tailing sand is achieved, land resources are saved, and meanwhile the construction cost of the covering layer is reduced; the defects that in an existing horizontal covering technology, a geomembrane-containing covering system completely isolates ecology, plant growth is not facilitated, a traditional soil covering system is prone to cracking, and consequently the anti-seepage performance is degraded are overcome.
本发明提供了一种以尾矿砂为主材的可自修复覆盖层及其施工方法。所述覆盖层铺设于填埋层之上，自下而上包括：粗尾矿隔盐层、细尾矿隔水层、粗尾矿毛细隔断层、细尾矿储水层及细尾矿营养土层，其中，细尾矿储水层由尾矿砂和亲水性矿物混合组成；细尾矿隔水层是该覆盖层结构发挥防渗闭气效果的关键层，由尾矿砂、膨润土、亲水性聚合物、聚丙烯纤维混合组成。本发明利用工业固废尾矿砂，实现了尾矿砂资源化利用，节约了土地资源，同时降低了覆盖层建设的成本，解决了现有水平覆盖技术中含土工膜覆盖系统完全隔离生态不利于植物生长以及传统土质覆盖系统易开裂导致防渗性能劣化等缺点。
Self-repairing covering layer with tailing sand as main material and construction method
The invention provides a self-repairing covering layer with tailing sand as a main material and a construction method of the self-repairing covering layer. The covering layer is laid on the landfill layer and comprises a coarse tailing salt isolation layer, a fine tailing water isolation layer, a coarse tailing capillary isolation layer, a fine tailing water storage layer and a fine tailing nutrient soil layer from bottom to top, and the fine tailing water storage layer is formed by mixing tailing sand and hydrophilic minerals; the fine tailing water-resisting layer is a key layer of the covering layer structure for exerting the anti-seepage and air-closing effects and is formed by mixing tailing sand, bentonite, hydrophilic polymers and polypropylene fibers. The industrial solid waste tailing sand is utilized, resource utilization of the tailing sand is achieved, land resources are saved, and meanwhile the construction cost of the covering layer is reduced; the defects that in an existing horizontal covering technology, a geomembrane-containing covering system completely isolates ecology, plant growth is not facilitated, a traditional soil covering system is prone to cracking, and consequently the anti-seepage performance is degraded are overcome.
本发明提供了一种以尾矿砂为主材的可自修复覆盖层及其施工方法。所述覆盖层铺设于填埋层之上，自下而上包括：粗尾矿隔盐层、细尾矿隔水层、粗尾矿毛细隔断层、细尾矿储水层及细尾矿营养土层，其中，细尾矿储水层由尾矿砂和亲水性矿物混合组成；细尾矿隔水层是该覆盖层结构发挥防渗闭气效果的关键层，由尾矿砂、膨润土、亲水性聚合物、聚丙烯纤维混合组成。本发明利用工业固废尾矿砂，实现了尾矿砂资源化利用，节约了土地资源，同时降低了覆盖层建设的成本，解决了现有水平覆盖技术中含土工膜覆盖系统完全隔离生态不利于植物生长以及传统土质覆盖系统易开裂导致防渗性能劣化等缺点。
Self-repairing covering layer with tailing sand as main material and construction method
一种以尾矿砂为主材的可自修复覆盖层及施工方法
LI MENGYUN (author) / CAO JIANFENG (author) / MIN MING (author) / PU KEFU (author) / LIU HONGRUI (author) / CHEN HAO (author) / WANG YUE (author)
2023-09-29
Patent
Electronic Resource
Chinese
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