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Protective structure and method for geomembrane laid on steep slope in reservoir area of tailings reservoir
The invention discloses a protective structure and method for geomembrane laid on a steep slope in a reservoir area of a tailings reservoir, and belongs to the field of environmental engineering. Theprotective structure and method solve the problems of easy aging and short protection time of geotechnical cloth existing in the existing method. A cushion layer and the geomembrane are sequentially laid on the surface layer of a foundation; a three-dimensional seepage eliminating net sheet is laid on the surface of the geomembrane; a plurality of irregular holes are formed in the surface and interior of the three-dimensional seepage eliminating net sheet; and holes of the three-dimensional seepage eliminating net sheet are filled with sandy oil. The method comprises the following steps of: levelling the foundation, laying the cushion layer on the surface layer of the foundation; laying the geomembrane on the cushion layer; and laying the three-dimensional seepage eliminating net sheet onthe geomembrane, and filling the holes of the three-dimensional seepage eliminating net sheet with the sandy soil. The protective structure and method can effectively prevent the problems of sandy soil sliding or geomembrane deformation, and prevents the geomembrane from being exposed to wind and sun in air; and the three-dimensional seepage eliminating net sheet has the function of water drainageand seepage elimination after being filled with the sandy oil, can resist rainwater erosion, and effectively reduces the seepage line of a tailings dam.
本发明公开了一种尾矿库库区陡边坡铺设土工膜的保护结构及方法，属于环境工程领域，解决了现有方法存在的土工布易老化、保护时间短的问题。本发明在地基表层依次铺设有垫层和土工膜，在土工膜表层铺设有三维立体排渗网片材，三维立体排渗网片材表面和内部设有多个不规则孔，三维立体排渗网片材的孔隙中填充有砂土。本发明方法：整平地基，在地基表层铺设垫层；在垫层上面铺设土工膜；在土工膜上面铺设三维立体排渗网片材，在三维立体排渗网片材的孔隙中灌填砂土。本发明能有效防止砂土滑动或土工膜变形问题，避免了土工膜暴露在空气中风吹日晒；三维立体排渗网片材灌砂土后具有排水排渗功能，能够抵抗雨水的冲刷作用，并有效降低尾矿坝的浸润线。
Protective structure and method for geomembrane laid on steep slope in reservoir area of tailings reservoir
The invention discloses a protective structure and method for geomembrane laid on a steep slope in a reservoir area of a tailings reservoir, and belongs to the field of environmental engineering. Theprotective structure and method solve the problems of easy aging and short protection time of geotechnical cloth existing in the existing method. A cushion layer and the geomembrane are sequentially laid on the surface layer of a foundation; a three-dimensional seepage eliminating net sheet is laid on the surface of the geomembrane; a plurality of irregular holes are formed in the surface and interior of the three-dimensional seepage eliminating net sheet; and holes of the three-dimensional seepage eliminating net sheet are filled with sandy oil. The method comprises the following steps of: levelling the foundation, laying the cushion layer on the surface layer of the foundation; laying the geomembrane on the cushion layer; and laying the three-dimensional seepage eliminating net sheet onthe geomembrane, and filling the holes of the three-dimensional seepage eliminating net sheet with the sandy soil. The protective structure and method can effectively prevent the problems of sandy soil sliding or geomembrane deformation, and prevents the geomembrane from being exposed to wind and sun in air; and the three-dimensional seepage eliminating net sheet has the function of water drainageand seepage elimination after being filled with the sandy oil, can resist rainwater erosion, and effectively reduces the seepage line of a tailings dam.
本发明公开了一种尾矿库库区陡边坡铺设土工膜的保护结构及方法，属于环境工程领域，解决了现有方法存在的土工布易老化、保护时间短的问题。本发明在地基表层依次铺设有垫层和土工膜，在土工膜表层铺设有三维立体排渗网片材，三维立体排渗网片材表面和内部设有多个不规则孔，三维立体排渗网片材的孔隙中填充有砂土。本发明方法：整平地基，在地基表层铺设垫层；在垫层上面铺设土工膜；在土工膜上面铺设三维立体排渗网片材，在三维立体排渗网片材的孔隙中灌填砂土。本发明能有效防止砂土滑动或土工膜变形问题，避免了土工膜暴露在空气中风吹日晒；三维立体排渗网片材灌砂土后具有排水排渗功能，能够抵抗雨水的冲刷作用，并有效降低尾矿坝的浸润线。
Protective structure and method for geomembrane laid on steep slope in reservoir area of tailings reservoir
尾矿库库区陡边坡铺设土工膜的保护结构及方法
DING DONGYAN (author)
2020-08-28
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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