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Large-diameter seepage drainage sand well structure of tailings pond and construction and application method of large-diameter seepage drainage sand well structure
The tailing pond large-diameter seepage drainage sand well structure comprises a sand well body and a pneumatic extraction drainage device, a geotextile mat, first geotextile, a reinforcement cage, a sand gravel backfilling layer, second geotextile and a screen pipe are fixedly arranged in the sand well body, the hole diameter of the sand well is 800-1200 mm, the geotextile mat and the first geotextile are wrapped outside the reinforcement cage, the filtration and reinforcement effects are achieved, and the pneumatic extraction drainage device is arranged in the sand well body. The permeability is effectively improved through the gap between the geotechnical mat and the first geotechnical cloth, the screen pipe is arranged on the innermost side of the sand drain body, the screen pipe is wrapped with the second geotechnical cloth, the sand gravel backfilling layer is arranged between the pipe wall of the screen pipe and the wall of the sand drain wall, and the sand drain body is matched with the pneumatic extraction drainage device to conduct drainage of the tailings pond. The tailing pond large-diameter seepage drainage sand well structure is large in hole diameter and good in seepage drainage effect, energy consumption and maintenance cost can be remarkably reduced due to the fact that pneumatic water pumping and automatic control are adopted, and the tailing pond large-diameter seepage drainage sand well structure is extremely practical. The invention further provides a construction application method of the tailing pond large-diameter seepage drainage sand well.
本发明公开了一种尾矿库大口径排渗砂井结构，包括砂井本体、气动抽提排水装置，砂井本体内固定设置土工席、第一土工布、钢筋笼、砂砾石回填层、第二土工布以及筛管，砂井孔径在800～1200mm，钢筋笼外部包裹土工席和第一土工布，起到过滤、加固作用，土工席和第一土工布间的间隙有效提升渗透率，筛管设置在砂井本体最内侧，筛管外侧包裹有第二土工布，筛管管壁与砂井壁之间设置砂砾石回填层，通过砂井本体配合气动抽提排水装置进行尾矿库的排渗。本发明尾矿库大口径排渗砂井结构，孔径大，排渗效果好，且由于采用气动抽水并采用自动化控制可以显著降低能耗与维护成本，极具实用性。本发明还提供一种上述尾矿库大口径排渗砂井的施工应用方法。
Large-diameter seepage drainage sand well structure of tailings pond and construction and application method of large-diameter seepage drainage sand well structure
The tailing pond large-diameter seepage drainage sand well structure comprises a sand well body and a pneumatic extraction drainage device, a geotextile mat, first geotextile, a reinforcement cage, a sand gravel backfilling layer, second geotextile and a screen pipe are fixedly arranged in the sand well body, the hole diameter of the sand well is 800-1200 mm, the geotextile mat and the first geotextile are wrapped outside the reinforcement cage, the filtration and reinforcement effects are achieved, and the pneumatic extraction drainage device is arranged in the sand well body. The permeability is effectively improved through the gap between the geotechnical mat and the first geotechnical cloth, the screen pipe is arranged on the innermost side of the sand drain body, the screen pipe is wrapped with the second geotechnical cloth, the sand gravel backfilling layer is arranged between the pipe wall of the screen pipe and the wall of the sand drain wall, and the sand drain body is matched with the pneumatic extraction drainage device to conduct drainage of the tailings pond. The tailing pond large-diameter seepage drainage sand well structure is large in hole diameter and good in seepage drainage effect, energy consumption and maintenance cost can be remarkably reduced due to the fact that pneumatic water pumping and automatic control are adopted, and the tailing pond large-diameter seepage drainage sand well structure is extremely practical. The invention further provides a construction application method of the tailing pond large-diameter seepage drainage sand well.
本发明公开了一种尾矿库大口径排渗砂井结构，包括砂井本体、气动抽提排水装置，砂井本体内固定设置土工席、第一土工布、钢筋笼、砂砾石回填层、第二土工布以及筛管，砂井孔径在800～1200mm，钢筋笼外部包裹土工席和第一土工布，起到过滤、加固作用，土工席和第一土工布间的间隙有效提升渗透率，筛管设置在砂井本体最内侧，筛管外侧包裹有第二土工布，筛管管壁与砂井壁之间设置砂砾石回填层，通过砂井本体配合气动抽提排水装置进行尾矿库的排渗。本发明尾矿库大口径排渗砂井结构，孔径大，排渗效果好，且由于采用气动抽水并采用自动化控制可以显著降低能耗与维护成本，极具实用性。本发明还提供一种上述尾矿库大口径排渗砂井的施工应用方法。
Large-diameter seepage drainage sand well structure of tailings pond and construction and application method of large-diameter seepage drainage sand well structure
一种尾矿库大口径排渗砂井结构及其施工应用方法
ZHANG YUEAN (author) / LI ZHIPING (author) / SU ZIMIAO (author) / LI SHIWEN (author)
2022-12-27
Patent
Electronic Resource
Chinese
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