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A platform for research: civil engineering, architecture and urbanism
Construction method of horizontal well structure of refuse landfill
The invention discloses a construction method of a horizontal well structure of a refuse landfill, which comprises the following steps of: drilling a hole into a refuse heap body by adopting a horizontal directional drill to form a horizontal well channel, and driving a horizontal well floral tube to penetrate through two sides of a reservoir area by adopting a pre-stressed tendon tensioned by pre-stress in a back-dragging process, so as to guide and discharge leachate and landfill gas between layers of the refuse heap body. According to the construction method of the horizontal well structure of the refuse landfill, the prestressed tendon prestress tensioning technology is applied to the floral tube structure for horizontal drainage and seepage of the refuse heap, so that the refuse landfill flows automatically in the horizontal direction to guide and drain the leachate, the liquid level of the leachate of the refuse heap can be effectively controlled, the water holding capacity of refuse is reduced, and the construction efficiency is improved. The method has the advantages of being flexible in construction, economical, efficient, fast in progress, capable of being applied to horizontal well construction in multi-span reservoir areas of multiple types of landfills and the like.
本发明公开了一种垃圾填埋场水平井结构的施工方法，该方法采用水平定向钻向垃圾堆体内钻孔形成水平井通道，在回拖中，采用经预应力张拉后的预应力筋带动水平井花管贯穿库区两侧，实现垃圾堆体层间的渗沥液和填埋气导排。本发明提供的垃圾填埋场水平井结构的施工方法，将预应力筋预应力张拉技术应用于垃圾堆体水平排渗的花管结构中，使垃圾填埋场水平向自流导排渗沥液，可有效控制垃圾堆体渗沥液液位，减少垃圾持水量，保证垃圾填埋场的安全运行及后期封场堆体稳定性，该方法施工灵活、经济高效、进度快，能应用于多类型填埋场多跨度库区施工水平井等优势。
Construction method of horizontal well structure of refuse landfill
The invention discloses a construction method of a horizontal well structure of a refuse landfill, which comprises the following steps of: drilling a hole into a refuse heap body by adopting a horizontal directional drill to form a horizontal well channel, and driving a horizontal well floral tube to penetrate through two sides of a reservoir area by adopting a pre-stressed tendon tensioned by pre-stress in a back-dragging process, so as to guide and discharge leachate and landfill gas between layers of the refuse heap body. According to the construction method of the horizontal well structure of the refuse landfill, the prestressed tendon prestress tensioning technology is applied to the floral tube structure for horizontal drainage and seepage of the refuse heap, so that the refuse landfill flows automatically in the horizontal direction to guide and drain the leachate, the liquid level of the leachate of the refuse heap can be effectively controlled, the water holding capacity of refuse is reduced, and the construction efficiency is improved. The method has the advantages of being flexible in construction, economical, efficient, fast in progress, capable of being applied to horizontal well construction in multi-span reservoir areas of multiple types of landfills and the like.
本发明公开了一种垃圾填埋场水平井结构的施工方法，该方法采用水平定向钻向垃圾堆体内钻孔形成水平井通道，在回拖中，采用经预应力张拉后的预应力筋带动水平井花管贯穿库区两侧，实现垃圾堆体层间的渗沥液和填埋气导排。本发明提供的垃圾填埋场水平井结构的施工方法，将预应力筋预应力张拉技术应用于垃圾堆体水平排渗的花管结构中，使垃圾填埋场水平向自流导排渗沥液，可有效控制垃圾堆体渗沥液液位，减少垃圾持水量，保证垃圾填埋场的安全运行及后期封场堆体稳定性，该方法施工灵活、经济高效、进度快，能应用于多类型填埋场多跨度库区施工水平井等优势。
Construction method of horizontal well structure of refuse landfill
一种垃圾填埋场水平井结构的施工方法
CHEN YAN (author) / HU KAILIANG (author) / DING JIE (author) / HUANG XIANXIONG (author) / LI CHAO (author) / LIU LIQIONG (author) / ZHU HONGQING (author) / WANG QING (author) / MENG GUOHUI (author)
2023-02-24
Patent
Electronic Resource
Chinese
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