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A platform for research: civil engineering, architecture and urbanism
Solid waste storage yard covering and blocking structure utilizing modified GCL and construction method
The invention discloses a solid waste storage yard covering and blocking structure utilizing modified GCL and a construction method. The solid waste storage yard covering and blocking structure comprises an impermeable layer, a protective layer, a drainage layer, an earthing supporting layer and a nutritional vegetation layer which are sequentially arranged on a leveling layer of a solid waste storage yard. The impermeable layer comprises a compacted clay layer and a modified GCL layer which are arranged from bottom to top, and clay used by the compacted clay layer is mixed with a silane solution; the modified GCL layer is composed of an upper-layer non-woven fabric, a lower-layer woven fabric and middle mixed powder, and the mixed powder comprises modified bentonite powder, rectorite powder, hydroxypropyl methyl cellulose and acrylonitrile-vinyl acetate resin powder. According to the method, migration and diffusion of pollutants (such as acid wastewater and heavy metal) between the pile body and the vegetation layer are effectively blocked, and recovery of the vegetation layer is effectively guaranteed.
本发明公开了一种利用改性GCL的固废堆场覆盖阻隔结构及构建方法，包括在固废堆场的找平层上依次设置的防渗层、保护层、排水层、覆土支撑层和营养植被层；防渗层包括自下而上设置的压实黏土层和改性GCL层，其中，压实黏土层所使用的黏土用硅烷溶液进行拌和；改性GCL层由上层无纺布、下层编织布和中间混合粉体构成，混合粉体包括改性膨润土粉、累托石粉、羟丙基甲基纤维素和丙烯腈‑乙酸乙烯酯树脂粉。本发明有效阻隔了堆体与植被层之间的污染物迁移扩散（如酸性废水、重金属），有效保证植被层的恢复。
Solid waste storage yard covering and blocking structure utilizing modified GCL and construction method
The invention discloses a solid waste storage yard covering and blocking structure utilizing modified GCL and a construction method. The solid waste storage yard covering and blocking structure comprises an impermeable layer, a protective layer, a drainage layer, an earthing supporting layer and a nutritional vegetation layer which are sequentially arranged on a leveling layer of a solid waste storage yard. The impermeable layer comprises a compacted clay layer and a modified GCL layer which are arranged from bottom to top, and clay used by the compacted clay layer is mixed with a silane solution; the modified GCL layer is composed of an upper-layer non-woven fabric, a lower-layer woven fabric and middle mixed powder, and the mixed powder comprises modified bentonite powder, rectorite powder, hydroxypropyl methyl cellulose and acrylonitrile-vinyl acetate resin powder. According to the method, migration and diffusion of pollutants (such as acid wastewater and heavy metal) between the pile body and the vegetation layer are effectively blocked, and recovery of the vegetation layer is effectively guaranteed.
本发明公开了一种利用改性GCL的固废堆场覆盖阻隔结构及构建方法，包括在固废堆场的找平层上依次设置的防渗层、保护层、排水层、覆土支撑层和营养植被层；防渗层包括自下而上设置的压实黏土层和改性GCL层，其中，压实黏土层所使用的黏土用硅烷溶液进行拌和；改性GCL层由上层无纺布、下层编织布和中间混合粉体构成，混合粉体包括改性膨润土粉、累托石粉、羟丙基甲基纤维素和丙烯腈‑乙酸乙烯酯树脂粉。本发明有效阻隔了堆体与植被层之间的污染物迁移扩散（如酸性废水、重金属），有效保证植被层的恢复。
Solid waste storage yard covering and blocking structure utilizing modified GCL and construction method
一种利用改性GCL的固废堆场覆盖阻隔结构及构建方法
HUO CHENGLI (author) / LI XIAOJIAO (author) / YU XIAOXIAO (author) / LUO BIN (author) / ZHENG ZHONGHUA (author) / LIU CHAO (author) / HONG HUILAN (author) / ZHEN SHENGLI (author)
2022-05-06
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
/
B09B
DISPOSAL OF SOLID WASTE
,
Beseitigung von festem Abfall
/
B32B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
,
Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse
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